Staff profile

• Iceland tectonics and structure
• crustal deformation using the Global Positioning System (GPS)
• earthquake seismology
• geothermal prospecting

Authored book

• Plates vs Plumes: A Geological Controversy
  
  Foulger, G. (2010). Plates vs Plumes: A Geological Controversy. Wiley.
• The Hengill geothermal area : seismological studies 1978-1984.
  
  Foulger, G. (1984). The Hengill geothermal area : seismological studies 1978-1984. Science Institute, University of Iceland.

Chapter in book

• Hotspots in Hindsight
  
  Julian, B. R., Foulger, G. R., Hatfield, O., Jackson, S. E., Simpson, E., Einbeck, J., & Moore, A. (2015). Hotspots in Hindsight. In The Interdisciplinary Earth: A Volume in Honor of Don L. Anderson (pp. 105-121). The Geological Society of America / AGU. https://doi.org/10.1130/2015.2514%2808%29
• The Yellowstone “hot spot” track results from migrating basin-range extension
  
  Foulger, G., Christiansen, R., & Anderson, D. (2015). The Yellowstone “hot spot” track results from migrating basin-range extension. In G. Foulger, M. Lustrino, & S. King (Eds.), The interdisciplinary earth : a volume in honor of Don L. Anderson. (pp. 215-238). Geological Society of America. https://doi.org/10.1130/2015.2514%2814%29%26%238203%3B
• Non-Double-Couple Earthquakes
  
  Foulger, G., & Julian, B. (2015). Non-Double-Couple Earthquakes. In M. Beer, I. Kougioumtzoglou, E. Patelli, & I.-K. Au (Eds.), Encyclopedia of earthquake engineering. (pp. 1-31). Springer Verlag. https://doi.org/10.1007/978-3-642-36197-5_290-1
• Genesis of the Iceland melt anomaly by plate tectonic processes
  
  Foulger, G., Natland, J., & Anderson, D. (2005). Genesis of the Iceland melt anomaly by plate tectonic processes. In G. Foulger, J. Natland, D. Presnall, & D. Anderson (Eds.), Plates, Plumes, and Paradigms (pp. 595-625).
• Regional vertical motion in Iceland 1987-1992, determined using GPS surveying.
  
  Foulger, G., & Hofton, M. (1998). Regional vertical motion in Iceland 1987-1992, determined using GPS surveying. In I. Stewart & C. Vita-Finzi (Eds.), Coastal Tectonics (pp. 165-178). Geological Society Special Publication.
• GPS epoch measurements spanning the mid-Atlantic plate boundary in northern Iceland 1987-1990
  
  Jahn, C.-H., Seeber, G., Foulger, G., & Einarsson, P. (1994). GPS epoch measurements spanning the mid-Atlantic plate boundary in northern Iceland 1987-1990. In Gravimetry and Space Techniques Applied to Geodynamics and Ocean Dynamics (pp. 109-123).
• Local tomography : volcanoes and the accretionary plate boundary in Iceland
  
  Foulger, G., & Arnott, S. (1993). Local tomography : volcanoes and the accretionary plate boundary in Iceland. In H. Iyer & K. Hirahara (Eds.), Seismic tomography : theory and practice (pp. 644-675). Chapman and Hall.
• Non-double couple earthquake focal mechanisms and the accretionary tectonic cycle.
  
  Foulger, G., & Long, R. (1992). Non-double couple earthquake focal mechanisms and the accretionary tectonic cycle. In P. Gasparini, R. Scarpa, & K. Aki (Eds.), Volcanic Seismology (IAVCEI Proceedings in Volcanology 3) (pp. 223-234). Springer-Verlag.
• Seismicity pattern in the South Iceland seismic zone, Earthquake prediction - An International Review
  
  Einarsson, P., Bjornsson, S., Foulger, G., Stefansson, R., & Skaftadottir, T. (1981). Seismicity pattern in the South Iceland seismic zone, Earthquake prediction - An International Review. In D. Simpson & P. Richards (Eds.), Earthquake prediction (Maurice Ewing series 4) (pp. 141-151). American Geophysical Union. https://doi.org/10.1029/me004p0141

Conference Paper

• Maximizing EGS earthquake location accuracies
  
  Foulger, G., & Julian, B. (2014). Maximizing EGS earthquake location accuracies. In 39th Workshop on geothermal reservoir engineering : Stanford Geothermal Program Workshop Report SGP-TR-202, Stanford, California, USA, 24-26 February 2014 ; proceedings. (pp. 902-911). Stanford Geothermal Program.
• Seismological software for geothermal monitoring
  
  Foulger, G., & Julian, B. (2013). Seismological software for geothermal monitoring. In R. Horne (Ed.), Workshops on Geothermal Reservoir Engineering. Stanford University.
• Microseismic monitoring of Newberry Volcano EGS Demonstration
  
  Cladouhos, T., Petty, S., Nordin, Y., Moore, M., Grasso, K., Uddenberg, M., Sawyer, M., Julian, B., & Foulger, G. (2013). Microseismic monitoring of Newberry Volcano EGS Demonstration. In R. Horne (Ed.), 38th Workshop on Geothermal Reservoir Engineering 2013. (pp. 778-786). Curran Associates.

Edited book

• Plumes, Plates, and Planetary Processes
  
  Foulger, G., & Jurdy, D. (Eds.). (2007). Plumes, Plates, and Planetary Processes. https://doi.org/10.1130/spe430
• Plates, Plumes, and Paradigms
  
  Foulger, G., Natland, J., Presnall, D., & Anderson, D. (Eds.). (2005). Plates, Plumes, and Paradigms.

Journal Article

• Carbonate deposition in the Arctic during the Paleocene Eocene Thermal Maximum (PETM) and Early Eocene Climatic Optimum (EECO)
  
  Posamentier, H. W., Nikishin, A. M., Aleshina, K. F., Rodina, E. A., Afanasenkov, A. P., Bachtel, S. L., & Foulger, G. R. (2025). Carbonate deposition in the Arctic during the Paleocene Eocene Thermal Maximum (PETM) and Early Eocene Climatic Optimum (EECO). Gondwana Research, 139, 136-146. https://doi.org/10.1016/j.gr.2024.11.011
• Lithospheric weakspots, not hotspots: New England-Quebec and Shenandoah anorogenic magmatism in the context of global plate tectonics, intraplate stress and LIPs
  
  Vogt, P. R., & Foulger, G. R. (2025). Lithospheric weakspots, not hotspots: New England-Quebec and Shenandoah anorogenic magmatism in the context of global plate tectonics, intraplate stress and LIPs. Earth-Science Reviews, 260, Article 104991. https://doi.org/10.1016/j.earscirev.2024.104991
• Induced seismicity
  
  Foulger, G. R., & Dong, L. (2024). Induced seismicity. Scientific Reports, 14(1), Article 29087. https://doi.org/10.1038/s41598-024-79796-z
• Impact of sub-basalt thrust systems on the Faroe continental shelf for the late Paleoproterozoic-Cenozoic tectonic evolution of the margin.
  
  Koehl, J.-B. P., Jolley, D. W., Peace, A. L., Muñoz-Barrera, J. M., & Foulger, G. R. (2024). Impact of sub-basalt thrust systems on the Faroe continental shelf for the late Paleoproterozoic-Cenozoic tectonic evolution of the margin. Open Research Europe, 4, Article 181. https://doi.org/10.12688/openreseurope.18284.1
• The remarkable parallels between the North East Atlantic and Arctic regions
  
  Foulger, G. R., Nikishin, A. M., Aleshina, K. F., & Rodina, E. A. (2024). The remarkable parallels between the North East Atlantic and Arctic regions. Tectonophysics, 880, Article 230317. https://doi.org/10.1016/j.tecto.2024.230317
• Devonian-Mississippian magmatism related to extensional collapse in Svalbard: implications for radiating dyke swarms.
  
  Koehl, J.-B. P., Tappe, S., Foulger, G. R., & Anell, I. M. (2024). Devonian-Mississippian magmatism related to extensional collapse in Svalbard: implications for radiating dyke swarms. Open Research Europe, 4, Article 262. https://doi.org/10.12688/openreseurope.18798.1
• The plausibility of claimed induced seismicity
  
  Wilkinson, M., Mhana, N., Wilson, M. P., Foulger, G. R., Tezel, T., & Gluyas, J. G. (2024). The plausibility of claimed induced seismicity. Scientific Reports, 14(1), Article 30846. https://doi.org/10.1038/s41598-024-81632-3
• Human-induced earthquakes: E-PIE—a generic tool for Evaluating Proposals of Induced Earthquakes
  
  Foulger, G., Wilkinson, M., Wilson, M., Mhana, N., Tezel, T., & Gluyas, J. (2023). Human-induced earthquakes: E-PIE—a generic tool for Evaluating Proposals of Induced Earthquakes. Journal of Seismology, 27(1), 21-44. https://doi.org/10.1007/s10950-022-10122-8
• Back‐Arc Tectonics and Plate Reconstruction of the Philippine Sea‐South China Sea Region Since the Eocene
  
  Liu, J., Li, S., Cao, X., Dong, H., Suo, Y., Jiang, Z., Zhou, J., Li, X., Zhang, R., Liu, L., & Foulger, G. R. (2023). Back‐Arc Tectonics and Plate Reconstruction of the Philippine Sea‐South China Sea Region Since the Eocene. Geophysical Research Letters, 50(5), Article e2022GL102154. https://doi.org/10.1029/2022gl102154
• Human-Induced Earthquakes: The Performance of Questionnaire Schemes
  
  Foulger, G. R., Wilkinson, M. W., Wilson, M. P., & Gluyas, J. G. (2022). Human-Induced Earthquakes: The Performance of Questionnaire Schemes. Bulletin of the Seismological Society of America, 112(6), 2773-2794. https://doi.org/10.1785/0120220079
• How strongly do plumes influence Pacific seamount distribution?
  
  Zhao, Y., Riel, B., Foulger, G., & Ding, W. (2022). How strongly do plumes influence Pacific seamount distribution?. Earth and Planetary Science Letters, 595, Article 117786. https://doi.org/10.1016/j.epsl.2022.117786
• The extent of continental material in oceans: C-Blocks and the Laxmi Basin example
  
  Werner, P., Foulger, G., Gernigon, L., Guan, H., & Geoffroy, L. (2020). The extent of continental material in oceans: C-Blocks and the Laxmi Basin example. Geophysical Journal International, 222(3), 1471-1479. https://doi.org/10.1093/gji/ggaa215
• Structural inheritance in the North Atlantic
  
  Schiffer, C., Doré, A. G., Foulger, G. R., Franke, D., Geoffroy, L., Gernigon, L., Holdsworth, R., Kusznir, N., Lundin, E., McCaffrey, K., Peace, A., Petersen, K. D., Phillips, T., Stephenson, R., Stoker, M. S., & Welford, K. (2020). Structural inheritance in the North Atlantic. Earth-Science Reviews, 206, Article 102975. https://doi.org/10.1016/j.earscirev.2019.102975
• A new paradigm for the North Atlantic Realm
  
  Foulger, G. R., Schiffer, C., & Peace, A. L. (2020). A new paradigm for the North Atlantic Realm. Earth-Science Reviews, 206, Article 103038. https://doi.org/10.1016/j.earscirev.2019.103038
• Global review of human-induced earthquakes
  
  Foulger, G. R., Wilson, M., Gluyas, J., Julian, B. R., & Davies, R. (2018). Global review of human-induced earthquakes. Earth-Science Reviews, 178, 438-514. https://doi.org/10.1016/j.earscirev.2017.07.008
• Evolution of Labrador Sea–Baffin Bay: Plate or Plume Processes?
  
  Peace, A. L., Foulger, G. R., Schiffer, C., & McCaffrey, K. J. (2017). Evolution of Labrador Sea–Baffin Bay: Plate or Plume Processes?. Geoscience Canada., 44(3), 91-102. https://doi.org/10.12789/geocanj.2017.44.120
• Anthropogenic earthquakes in the UK: A national baseline prior to shale exploitation
  
  Wilson, M., Davies, R., Foulger, G., Julian, B., Styles, P., & Gluyas, J. (2015). Anthropogenic earthquakes in the UK: A national baseline prior to shale exploitation. Marine and Petroleum Geology, 68(Part A), 1-17. https://doi.org/10.1016/j.marpetgeo.2015.08.023
• Induced Seismicity and Hydraulic Fracturing for the Recovery of Hydrocarbons
  
  Davies, R., Foulger, G., Bindley, A., & Styles, P. (2013). Induced Seismicity and Hydraulic Fracturing for the Recovery of Hydrocarbons. Marine and Petroleum Geology, 45, 171-185. https://doi.org/10.1016/j.marpetgeo.2013.03.016
• Caveats on tomographic images
  
  Foulger, G., Panza, G., Artemieva, I., Bastow, I., Cammarano, F., Evans, J., Hamilton, W., Julian, B., Lustrino, M., Thybo, H., & Yanovskaya, T. (2013). Caveats on tomographic images. Terra Nova, 25(4), 259-281. https://doi.org/10.1111/ter.12041
• Reply: Davies et al. (2012), Hydraulic fractures: How far can they go?
  
  Davies, R., Foulger, G., Mathias, S., Moss, J., Hustoft, S., & Newport, L. (2013). Reply: Davies et al. (2012), Hydraulic fractures: How far can they go?. Marine and Petroleum Geology, 43, 519-521. https://doi.org/10.1016/j.marpetgeo.2013.02.001
• Are 'hot spots' hot spots?
  
  Foulger, G. (2012). Are ’hot spots’ hot spots?. Journal of Geodynamics, 58, 1-28. https://doi.org/10.1016/j.jog.2011.12.003
• Time-dependent seismic tomography
  
  Julian, B., & Foulger, G. (2010). Time-dependent seismic tomography. Geophysical Journal International, 182(3), 1327-1338. https://doi.org/10.1111/j.1365-246x.2010.04668.x
• Imaging Hydraulic Fractures in a Geothermal Reservoir
  
  Julian, B., Foulger, G., Monastero, F., & Bjornstad, S. (2010). Imaging Hydraulic Fractures in a Geothermal Reservoir. Geophysical Research Letters, 37, Article L07305. https://doi.org/10.1029/2009gl040933
• Older crust underlies Iceland
  
  Foulger, G. (2006). Older crust underlies Iceland. Geophysical Journal International, 165(2), 672-676. https://doi.org/10.1111/j.1365-246x.2006.02941.x
• The great plume debate
  
  Foulger, G., Fitton, J., Presnall, D., & Morgan, W. (2006). The great plume debate. Eos, Transactions American Geophysical Union, 87(7), 76-80. https://doi.org/10.1029/2006eo070004
• Evidence from P-to-S mantle converted waves for a flat “660-km” discontinuity beneath Iceland
  
  Du, Z., Vinnik, L., & Foulger, G. (2006). Evidence from P-to-S mantle converted waves for a flat “660-km” discontinuity beneath Iceland. Earth and Planetary Science Letters, 241(1-2), 271-280. https://doi.org/10.1016/j.epsl.2005.09.066
• A source for Icelandic magmas in remelted Iapetus crust
  
  Foulger, G., Natland, J., & Anderson, D. (2005). A source for Icelandic magmas in remelted Iapetus crust. Journal of Volcanology and Geothermal Research, 141(1-2), 23-44. https://doi.org/10.1016/j.jvolgeores.2004.10.006
• A cool model for the Iceland hotspot
  
  Foulger, G., & Anderson, D. (2005). A cool model for the Iceland hotspot. Journal of Volcanology and Geothermal Research, 141(1-2), 1-22. https://doi.org/10.1016/j.jvolgeores.2004.10.007
• Seismic boundaries in the mantle beneath Iceland: a new constraint on temperature
  
  Vinnik, L., Foulger, G., & Du, Z. (2005). Seismic boundaries in the mantle beneath Iceland: a new constraint on temperature. Geophysical Journal International, 160(2), 533-538. https://doi.org/10.1111/j.1365-246x.2005.02529.x
• Mantle plumes: Why the current skepticism?
  
  Foulger, G. (2005). Mantle plumes: Why the current skepticism?. Chinese Science Bulletin = Kexue Tongbao., 50, 1555-1600. https://doi.org/10.1360/982005-919
• Surface wave waveform inversion for variation in upper mantle structure beneath Iceland
  
  Du, Z., & Foulger, G. (2004). Surface wave waveform inversion for variation in upper mantle structure beneath Iceland. Geophysical Journal International, 157(1), 305-314. https://doi.org/10.1111/j.1365-246x.2004.02202.x
• Non-double-couple microearthquakes at Long Valley caldera, California, provide evidence for hydraulic fracturing
  
  Foulger, G., Julian, B., Hill, D., Pitt, A., Malin, P., & Shalev, E. (2004). Non-double-couple microearthquakes at Long Valley caldera, California, provide evidence for hydraulic fracturing. Journal of Volcanology and Geothermal Research, 132(1), 45-71. https://doi.org/10.1016/s0377-0273%2803%2900420-7
• Penrose Conference Report. Plume IV: Beyond the Plume Hypothesis � Tests of the plume paradigm and alternatives
  
  Foulger, G., Natland, J., & Anderson, D. (2004). Penrose Conference Report. Plume IV: Beyond the Plume Hypothesis � Tests of the plume paradigm and alternatives. GSA Today, 14, 26-28.
• A powerful tool: Use of time-dependent MEQ tomography for monitoring producing geothermal reservoirs
  
  Foulger, G., & Julian, B. (2004). A powerful tool: Use of time-dependent MEQ tomography for monitoring producing geothermal reservoirs. Geotherm. Res. Council Bull, 33, 120-126.
• Microearthquake Focal Mechanisms: A Tool for Monitoring Geothermal Systems
  
  Julian, B., & Foulger, G. (2004). Microearthquake Focal Mechanisms: A Tool for Monitoring Geothermal Systems. Geotherm. Res. Council Bull, 33, 166-171.
• Icelandic-type crust
  
  Foulger, G., Du, Z., & Julian, B. (2003). Icelandic-type crust. Geophysical Journal International, 155(2), 567-590. https://doi.org/10.1046/j.1365-246x.2003.02056.x
• Is 'hotspot' volcanism a consequence of plate tectonics?
  
  Foulger, G., & Natland, J. (2003). Is ’hotspot’ volcanism a consequence of plate tectonics?. Science, 300(5621), 921-922. https://doi.org/10.1126/science.1083376
• Reservoir depletion at The Geysers geothermal area, California, shown by four-dimensional seismic tomography
  
  Gunasekera, R., Foulger, G., & Julian, B. (2003). Reservoir depletion at The Geysers geothermal area, California, shown by four-dimensional seismic tomography. Journal of Geophysical Research. Solid Earth, 108(B3), Article 2134. https://doi.org/10.1029/2001jb000638
• In response...
  
  Foulger, G. (2003). In response. Astronomy and Geophysics, 44(1). https://doi.org/10.1046/j.1468-4004.2003.44113.x
• Plumes, plates and Popper.
  
  Foulger, G. (2003). Plumes, plates and Popper. Geoscientist, 13(5), 16-17.
• Plumes, or plate tectonic processes?
  
  Foulger, G. (2002). Plumes, or plate tectonic processes?. Astronomy and Geophysics, 43(6), 6.19-6.23. https://doi.org/10.1046/j.1468-4004.2002.43619.x
• Imaging the mantle beneath Iceland using integrated seismological techniques
  
  Allen, R., Nolet, G., Morgan, W., Vogfjörd, K., Bergsson, B., Erlendsson, P., Foulger, G., Jakobsdóttir, S., Julian, B., Pritchard, M., Ragnarsson, S., & Stefánsson, R. (2002). Imaging the mantle beneath Iceland using integrated seismological techniques. Journal of Geophysical Research. Solid Earth, 107(B12), Article 2325. https://doi.org/10.1029/2001jb000595
• Plume-driven plumbing and crustal formation in Iceland
  
  Allen, R., Nolet, G., Morgan, W., Vogfjörd, K., Nettles, M., Ekström, G., Bergsson, B., Erlendsson, P., Foulger, G., Jakobsdóttir, S., Julian, B., Pritchard, M., Ragnarsson, S., & Stefánsson, R. (2002). Plume-driven plumbing and crustal formation in Iceland. Journal of Geophysical Research. Solid Earth, 107(B8), Article 2163. https://doi.org/10.1029/2001jb000584
• Crustal structure beneath western and eastern Iceland from surface waves and receiver functions
  
  Du, Z., Foulger, G., Julian, B., Allen, R., Nolet, G., Morgan, W., Bergsson, B., Erlendsson, P., Jakobsdottir, S., Ragnarsson, S., Stefansson, R., & Vogfjord, K. (2002). Crustal structure beneath western and eastern Iceland from surface waves and receiver functions. Geophysical Journal International, 149(2), 349-363. https://doi.org/10.1046/j.1365-246x.2002.01642.x
• There is no plume under Iceland.
  
  Foulger, G. (2002). There is no plume under Iceland. The Observatory., 122, 316-320.
• Upper-mantle origin of the Yellowstone hotspot.
  
  Christiansen, R., Foulger, G., & Evans, J. (2002). Upper-mantle origin of the Yellowstone hotspot. Geological Society of America Bulletin, 114, 1245-1256.
• Seismic evidence for a tilted mantle plume and large-scale, north-south flow beneath Iceland
  
  Shen, Y., Solomon, S., Bjarnason, I., Nolet, G., Morgan, W., Allen, R., Vogfjord, K., Jakobsdottir, S., Stefansson, R., Julian, B., & Foulger, G. (2002). Seismic evidence for a tilted mantle plume and large-scale, north-south flow beneath Iceland. Earth and Planetary Science Letters, 197, 261-272. https://doi.org/10.1016/s0012-821x%2802%2900494-6
• Seismic tomography shows that upwelling beneath Iceland is confined to the upper mantle
  
  Foulger, G., Pritchard, M., Julian, B., Evans, J., Allen, R., Nolet, G., Morgan, W., Bergsson, B., Erlendsson, P., Jakobsdottir, S., Ragnarsson, S., Stefansson, R., & Vogfjord, K. (2001). Seismic tomography shows that upwelling beneath Iceland is confined to the upper mantle. Geophysical Journal International, 146(2), 504-530. https://doi.org/10.1046/j.0956-540x.2001.01470.x
• Is Iceland underlain by a plume in the lower mantle? Seismology and helium isotopes.
  
  Foulger, G., & Pearson, D. (2001). Is Iceland underlain by a plume in the lower mantle? Seismology and helium isotopes. Geophysical Journal International, 145(3), F1-F5. https://doi.org/10.1046/j.0956-540x.2001.01457.x
• Variation in the crustal structure across central Iceland.
  
  Du, Z., & Foulger, G. (2001). Variation in the crustal structure across central Iceland. Geophysical Journal International, 145(1), 246-264. https://doi.org/10.1111/j.1365-246x.2001.00377.x
• The seismic anomaly beneath Iceland extends down to the mantle transition zone and no deeper
  
  Foulger, G., Pritchard, M., Julian, B., Evans, J., Allen, R., Nolet, G., Morgan, W., Bergsson, B., Erlendsson, P., Jakobsdottir, S., Ragnarsson, S., Stefansson, R., & Vogfjord, K. (2000). The seismic anomaly beneath Iceland extends down to the mantle transition zone and no deeper. Geophysical Journal International, 142, F1-F5. https://doi.org/10.1046/j.1365-246x.2000.00245.x
• Noise reduction for broadband, three-component seismograms using data-adaptive polarization filter
  
  Du, Z., Foulger, G., & Mao, W. (2000). Noise reduction for broadband, three-component seismograms using data-adaptive polarization filter. Geophysical Journal International, 141, 820-828. https://doi.org/10.1046/j.1365-246x.2000.00156.x
• A geometrical error in some versions of the ACH method of teleseismic tomography
  
  Julian, B., Evans, J., Pritchard, M., & Foulger, G. (2000). A geometrical error in some versions of the ACH method of teleseismic tomography. Bulletin of the Seismological Society of America, 90, 1554-1558. https://doi.org/10.1785/0119990169
• Seismic-array constraints on a possible plume in the mid-mantle beneath Iceland.
  
  Pritchard, M., Foulger, G., Julian, B., & Fyen, J. (2000). Seismic-array constraints on a possible plume in the mid-mantle beneath Iceland. Geophysical Journal International, 143, 119-128. https://doi.org/10.1046/j.1365-246x.2000.00221.x
• Comparison of local earthquake tomographic crustal models with gravity data for the Hengill and Krafla areas
  
  Foulger, G., & Field, P. (2000). Comparison of local earthquake tomographic crustal models with gravity data for the Hengill and Krafla areas. Jökull, 29-47.
• Geoid undulation modelling and interpretation at Ladak, NW Himalaya using GPS and levelling data
  
  Banerjee, P., Foulger, G., Prakash, S., & Dabral, C. (1999). Geoid undulation modelling and interpretation at Ladak, NW Himalaya using GPS and levelling data. Journal of Geodesy, 73, 79-86.
• Frequency-magnitude statistics and spatial correlation dimensions of earthquakes at Long Valley caldera, California
  
  Barton, D., Foulger, G., Henderson, J., & Julian, B. (1999). Frequency-magnitude statistics and spatial correlation dimensions of earthquakes at Long Valley caldera, California. Geophysical Journal International, 138, 563-570. https://doi.org/10.1046/j.1365-246x.1999.00898.x
• Present day deformation across the Basin and Range
  
  Thatcher, W., Foulger, G., Julian, B., & Svarc, J. (1999). Present day deformation across the Basin and Range. Science, 283, 1714-1718.
• Fractal clustering of induced seismicity in the Geysers geothermal area, California
  
  Henderson, J., Barton, D., & Foulger, G. (1999). Fractal clustering of induced seismicity in the Geysers geothermal area, California. Geophysical Research Letters, 139, 317-324.
• The Iceland plume: Now you see it, now you don’t
  
  Foulger, G. (1999). The Iceland plume: Now you see it, now you don’t. The Observatory., 119, 120-124.
• Source processes of industrially-induced earthquakes at The Geysers geothermal area, California
  
  Ross, A., Foulger, G., & Julian, B. (1999). Source processes of industrially-induced earthquakes at The Geysers geothermal area, California. Geophysics, 64, 1877-1889.
• The crustal structure beneath the Northwest Fjords, Iceland, from receiver functions and surface waves.
  
  Du, Z., & Foulger, G. (1999). The crustal structure beneath the Northwest Fjords, Iceland, from receiver functions and surface waves. Geophysical Journal International, 139, 419-432. https://doi.org/10.1046/j.1365-246x.1999.00945.x
• The thin, hot plume beneath Iceland
  
  Allen, R., Nolet, G., Morgan, W., Vogfjord, K., Bergsson, B., Erlendsson, P., Foulger, G., Jakobsdottir, S., Julian, B., Pritchard, M., Ragnarsson, S., & Stefansson, R. (1999). The thin, hot plume beneath Iceland. Geophysical Journal International, 137, 51-63. https://doi.org/10.1046/j.1365-246x.1999.00753.x
• Seismic image of a CO₂ reservoir beneath a seismically active volcano
  
  Julian, B., Pitt, A., & Foulger, G. (1998). Seismic image of a CO₂ reservoir beneath a seismically active volcano. Geophysical Journal International, 133, 7-10. https://doi.org/10.1046/j.1365-246x.1998.1331540.x
• Non-double-couple earthquakes 1. Theory
  
  Julian, B., Miller, A., & Foulger, G. (1998). Non-double-couple earthquakes 1. Theory. Reviews of Geophysics, 36, 525-549.
• Seismic monitoring and activity increase in California caldera
  
  Foulger, G., Malin, P., Shalev, E., Julian, B., & Hill, D. (1998). Seismic monitoring and activity increase in California caldera. EOS, Trans Amer. Geophys. Union, 79, 357-363.
• Non-double-couple earthquakes 2. Observations, Rev.
  
  Miller, A., Foulger, G., & Julian, B. (1998). Non-double-couple earthquakes 2. Observations, Rev. Geophysics, 36, 551-568.
• Three-dimensional structure and moment tensors of non-double-couple earthquakes at the Hengill-Grensdalur volcanic complex, Iceland
  
  Miller, A., Julian, B., & Foulger, G. (1998). Three-dimensional structure and moment tensors of non-double-couple earthquakes at the Hengill-Grensdalur volcanic complex, Iceland. Geophysical Journal International, 133, 309-325. https://doi.org/10.1046/j.1365-246x.1998.00492.x
• Databases in the field: A dissenting view
  
  Julian, B., & Foulger, G. (1997). Databases in the field: A dissenting view. IRIS Newsletter, 16, 11-14.
• Industrially induced changes in Earth structure at The Geysers geothermal area, California
  
  Foulger, G., Ross, A., Julian, B., & Grant, C. (1997). Industrially induced changes in Earth structure at The Geysers geothermal area, California. Geophysical Research Letters, 24, 135-137.
• Non-double-couple earthquakes at the Hengill-Grensdalur geothermal area, southeast Iceland.
  
  Julian, B., Miller, A., & Foulger, G. (1997). Non-double-couple earthquakes at the Hengill-Grensdalur geothermal area, southeast Iceland. Geophysical Research Letters, 24, 743-746.
• The 1994-1995 seismicity and deformation at the Hengill triple junction, Iceland: Triggering of earthquakes by minor magma injection in a zone of horizontal shear stress.
  
  Sigmundsson, F., Einarsson, P., Rognvaldsson, S., Foulger, G., Hodgkinson, K., & Thorbergsson, G. (1997). The 1994-1995 seismicity and deformation at the Hengill triple junction, Iceland: Triggering of earthquakes by minor magma injection in a zone of horizontal shear stress. Journal of Geophysical Research. Solid Earth, 102(15), 15151-15161. https://doi.org/10.1029/97jb00892
• How tectonic plates move
  
  Foulger, G. (1997). How tectonic plates move. The Observatory., 118, 55-58.
• Post-rifting anelastic deformation around the spreading plate boundary, north Iceland, 2: Implications of the model derived from the 1987-1992 deformation field
  
  Hofton, M., & Foulger, G. (1996). Post-rifting anelastic deformation around the spreading plate boundary, north Iceland, 2: Implications of the model derived from the 1987-1992 deformation field. Journal of Geophysical Research. Solid Earth, 101, 25423-25436. https://doi.org/10.1029/96jb02465
• Moment tensors from linear inversion of body-wave amplitude ratios: Powerful constraints on earthquake mechanisms.
  
  Julian, B., & Foulger, G. (1996). Moment tensors from linear inversion of body-wave amplitude ratios: Powerful constraints on earthquake mechanisms. Bulletin of the Seismological Society of America, 86, 972-980.
• Three-dimensional image of a geothermal reservoir: The Geysers, California
  
  Julian, B., Ross, A., Foulger, G., & Evans, J. (1996). Three-dimensional image of a geothermal reservoir: The Geysers, California. Geophysical Research Letters, 23, 685-688.
• Shear-wave splitting from local earthquakes in the Hengill triple junction region, southwest Iceland
  
  Evans, J., Foulger, G., Julian, B., & Miller, A. (1996). Shear-wave splitting from local earthquakes in the Hengill triple junction region, southwest Iceland. Geophysical Research Letters, 23, 455-458.
• Post-rifting anelastic deformation around the spreading plate boundary, north Iceland, 1: Modeling of the 1987-1992 deformation field using a viscoelastic Earth structure
  
  Foulger, G., & Hofton, M. (1996). Post-rifting anelastic deformation around the spreading plate boundary, north Iceland, 1: Modeling of the 1987-1992 deformation field using a viscoelastic Earth structure. Journal of Geophysical Research. Solid Earth, 101, 25403-25421.
• First epoch GPS survey of the Hengill triple junction, SW Iceland, and the effect of ocean loading.
  
  Hodgkinson, K., & Foulger, G. (1996). First epoch GPS survey of the Hengill triple junction, SW Iceland, and the effect of ocean loading. Jokull, 44, 17-27.
• Non-double couple earthquake mechanisms at The Geysers geothermal area, California
  
  Ross, A., Foulger, G., & Julian, B. (1996). Non-double couple earthquake mechanisms at The Geysers geothermal area, California. Geophysical Research Letters, 23, 877-880.
• An experiment in glacio-isostacy near Vatnajökull, Iceland
  
  Einarsson, P., Sigmundsson, F., Hofton, M., Foulger, G., & Jacoby, W. (1996). An experiment in glacio-isostacy near Vatnajökull, Iceland. Jokull, 44, 29-39.
• Plate boundary deformation and continuing deflation of the Askja volcano, North Iceland, determined with GPS, 1987-1993
  
  Camitz, J., Sigmundsson, F., Foulger, G., Jahn, C.-H., Voelksen, C., & Einarsson, P. (1995). Plate boundary deformation and continuing deflation of the Askja volcano, North Iceland, determined with GPS, 1987-1993. Bulletin of Volcanology, 57, 136-145. https://doi.org/10.1007/bf00301404
• Surface deformation due to dyke emplacement in an elastic-gravitational layer overlying a viscoelastic-gravitational half space.
  
  Hofton, M., Rundle, J., & Foulger, G. (1995). Surface deformation due to dyke emplacement in an elastic-gravitational layer overlying a viscoelastic-gravitational half space. Journal of Geophysical Research. Solid Earth, 100, 6329-6338. https://doi.org/10.1029/94jb03266
• The Hengill triple junction, SW Iceland: Geothermal gradients and the depth of the base of the seismogenic layer
  
  Foulger, G. (1995). The Hengill triple junction, SW Iceland: Geothermal gradients and the depth of the base of the seismogenic layer. Journal of Volcanology and Geothermal Research, 65, 119-133.
• Shear-wave splitting and wave-speed anisotropy of local earthquakes at The Geysers geothermal field, California
  
  Evans, J., Julian, B., Foulger, G., & Ross, A. (1995). Shear-wave splitting and wave-speed anisotropy of local earthquakes at The Geysers geothermal field, California. Geophysical Research Letters, 22, 501-504.
• Three-dimensional VP and VP/VS structures of the Hengill triple junction and geothermal area, Iceland and the repeatability of tomographic inversions
  
  Foulger, G., Miller, A., Julian, B., & Evans, J. (1995). Three-dimensional VP and VP/VS structures of the Hengill triple junction and geothermal area, Iceland and the repeatability of tomographic inversions. Geophysical Research Letters, 22, 1309-1312.
• The Krafla spreading segment, Iceland: 1. Three dimensional crustal structure and the spatial and temporal distribution of local earthquakes.
  
  Arnott, S., & Foulger, G. (1994). The Krafla spreading segment, Iceland: 1. Three dimensional crustal structure and the spatial and temporal distribution of local earthquakes. Journal of Geophysical Research. Solid Earth, 99, 23801-23826.
• The Krafla spreading segment, Iceland : 2. The accretionary stress cycle and non-shear earthquake focal mechanisms
  
  Arnott, S., & Foulger, G. (1994). The Krafla spreading segment, Iceland : 2. The accretionary stress cycle and non-shear earthquake focal mechanisms. Journal of Geophysical Research. Solid Earth, 99, 23826-23842.
• Non-shear focal mechanisms of earthquakes at The Geysers, CA., and Hengill, Iceland, geothermal areas
  
  Julian, B., Miller, A., & Foulger, G. (1993). Non-shear focal mechanisms of earthquakes at The Geysers, CA., and Hengill, Iceland, geothermal areas. Transactions- Geothermal Resources Council., 17, 123-128.
• Three-dimensional images of geothermal systems: Local earthquake P-wave velocity tomography at the Hengill and Krafla geothermal areas, Iceland, and The Geysers, CA.
  
  Julian, B., Prisk, A., Foulger, G., & Evans, J. (1993). Three-dimensional images of geothermal systems: Local earthquake P-wave velocity tomography at the Hengill and Krafla geothermal areas, Iceland, and The Geysers, CA. Transactions- Geothermal Resources Council., 17, 113-121.
• The Iceland 1986 GPS geodetic survey: Tectonic goals and data processing results
  
  Foulger, G., Beutler, G., Bilham, R., Einarsson, P., Fankhauser, S., Gurtner, W., Hugentobler, U., Morgan, W., Rothacher, M., Thorbergsson, G., & Wild, U. (1993). The Iceland 1986 GPS geodetic survey: Tectonic goals and data processing results. Bull. Geodetica, 67, 148-172.
• Non-double-couple earthquakes at the Hengill-Grensdalur volcanic complex, Iceland: Are they Artifacts of Crustal Heterogeneity?
  
  Foulger, G., & Julian, B. (1993). Non-double-couple earthquakes at the Hengill-Grensdalur volcanic complex, Iceland: Are they Artifacts of Crustal Heterogeneity?. Geological Society of America Bulletin, 83, 38-52.
• Plate kinematics near divergent boundaries: Geophysical implications of post-tectonic crustal deformation in NE Iceland detected using the Global Positioning System
  
  Heki, K., Foulger, G., Julian, B., & Jahn, C.-H. (1993). Plate kinematics near divergent boundaries: Geophysical implications of post-tectonic crustal deformation in NE Iceland detected using the Global Positioning System. Journal of Geophysical Research. Solid Earth, 98, 14279-14297.
• Post rifting stress relaxation at the accretionary plate boundary in Iceland, measured using the Global Positioning System
  
  Foulger, G., Jahn, C.-H., Seeber, G., Einarsson, P., Julian, B., & Heki, K. (1992). Post rifting stress relaxation at the accretionary plate boundary in Iceland, measured using the Global Positioning System. Nature, 358, 488-490. https://doi.org/10.1038/358488a0
• Shallow structures beneath Heimaey and Surtsey from local gravity data
  
  Cameron, B., Cranmer, F., & Foulger, G. (1992). Shallow structures beneath Heimaey and Surtsey from local gravity data. Surtsey Research Progress Report, 10, 79-92.
• A GPS geodetic survey of southwest Turkey
  
  Salk, M., Foulger, G., Ergün, M., & Cifci, G. (1990). A GPS geodetic survey of southwest Turkey. Jeofizik, 4, 49-52.
• Implosive earthquakes at the active accretionary plate boundary in northern Iceland.
  
  Foulger, G., Long, R., Einarsson, P., & Bjornsson, A. (1989). Implosive earthquakes at the active accretionary plate boundary in northern Iceland. Nature, 337, 640-642. https://doi.org/10.1038/337640a0
• Application of tomographic inversion to local earthquake data from the Hengill-Grensdalur central volcano complex, Iceland
  
  Toomey, D., & Foulger, G. (1989). Application of tomographic inversion to local earthquake data from the Hengill-Grensdalur central volcano complex, Iceland. Journal of Geophysical Research. Solid Earth, 94, 17497-17510.
• Structure and evolution of the Hengill-Grensdalur central volcano complex, Iceland: Geology , geophysics and seismic tomography
  
  Foulger, G., & Toomey, D. (1989). Structure and evolution of the Hengill-Grensdalur central volcano complex, Iceland: Geology , geophysics and seismic tomography. Journal of Geophysical Research. Solid Earth, 94, 17511-17522. https://doi.org/10.1029/jb094ib12p17511
• The Hengill triple junction, SW Iceland: 1. Tectonic structure and the spatial and temporal distribution of local earthquakes
  
  Foulger, G. (1988). The Hengill triple junction, SW Iceland: 1. Tectonic structure and the spatial and temporal distribution of local earthquakes. Journal of Geophysical Research. Solid Earth, 93, 13493-13506.
• The Hengill triple junction, SW Iceland: 2. Anomalous earthquake focal mechanisms and implications for process within the geothermal reservoir and at accretionary plate boundaries
  
  Foulger, G. (1988). The Hengill triple junction, SW Iceland: 2. Anomalous earthquake focal mechanisms and implications for process within the geothermal reservoir and at accretionary plate boundaries. Journal of Geophysical Research. Solid Earth, 93, 13507-13523.
• The Iceland GPS geodetic field campaign l986
  
  Foulger, G., Bilham, R., Morgan, W., & Einarsson, P. (1987). The Iceland GPS geodetic field campaign l986. EOS, Trans Amer. Geophys. Union, 68, 1809-1818.
• Anomalous focal mechanism solutions: evidence for tensile crack formation on an accreting plate boundary
  
  Foulger, G., & Long, R. (1984). Anomalous focal mechanism solutions: evidence for tensile crack formation on an accreting plate boundary. Nature, 310, 43-45. https://doi.org/10.1038/310043a0
• Geothermal exploration and reservoir monitoring using earthquakes and the passive seismic method
  
  Foulger, G. (1982). Geothermal exploration and reservoir monitoring using earthquakes and the passive seismic method. Geothermics, 11, 259-268.
• Recent earthquakes in the Hengill-Hellisheidi area in S.W. Iceland
  
  Foulger, G., & Einarsson, P. (1980). Recent earthquakes in the Hengill-Hellisheidi area in S.W. Iceland. Journal of Geophysical Research. Solid Earth, 47, 171-175.
• Regional post-dyking deformation in N.E. Iceland: A third epoch of GPS measurements in 1992
  
  Foulger, G., Hofton, M., Julian, B., Jahn, C.-H., & Seeber, G. (n.d.). Regional post-dyking deformation in N.E. Iceland: A third epoch of GPS measurements in 1992. J. Geod. Soc, Japan Spec. Issue, 99-105.
• A microearthquake survey of the Mammoth Mountain area, Long Valley caldera, California, summer 1997
  
  Foulger, G., Julian, B., Hill, D., Sharer, G., Foulger, L., Perlroth, R., Dotson, N., Pitt, A., & Brodsky, E. (n.d.). A microearthquake survey of the Mammoth Mountain area, Long Valley caldera, California, summer 1997. U.S. Geological Survey Open-File Report, 98-236.

Report

• The 1992 Basin & Range Province GPS survey: 3. Data processing and results
  
  Foulger, G. (1994). The 1992 Basin & Range Province GPS survey: 3. Data processing and results.
• The 1992 Basin & Range Province GPS survey: 2. The field survey
  
  Foulger, G. (1994). The 1992 Basin & Range Province GPS survey: 2. The field survey.
• The 1992 Basin & Range Province GPS survey: 1. Point descriptions
  
  Julian, B., & Foulger, G. (1994). The 1992 Basin & Range Province GPS survey: 1. Point descriptions.