Rich Briggs
My work focuses on the geology and seismotectonics of large earthquakes, with the goal of understanding how, where, and why they happen.
Biography
Research Focus
I characterize active faults for seismic hazard analysis. This requires grappling with structures and processes that control earthquakes. I also work with the USGS National Earthquake Information Center (NEIC) to respond to large earthquakes by conducting rapid field studies and analyzing remote sensing products.
Professional Preparation
BS, Geologic and Environmental Science, Stanford University, 1999
PhD, Geology, Center for Neotectonic Studies, University of Nevada, Reno, 2004
Postdoctoral Scholar, Tectonics Observatory, California Institute of Technology, 2005-2008
Professional Experience
Research Geologist, U.S. Geological Survey, Golden, CO, 2008-present
Geologist, Synergetics Incorporated, Fort Collins, CO (contracted to USGS), 2008
Publications
Published:
Gold, R.D., Briggs, R.W., Crone, A.J., DuRoss, C.B. Refining fault slip rates using multiple displaced terrace risers—An example from the Honey Lake fault, NE California, USA (2017) Earth and Planetary Science Letters, 477, pp. 134-146. DOI: 10.1016/j.epsl.2017.08.021
Hayes, G.P., Briggs, R.W. Introduction to the special issue on the 25 April 2015 Mw 7.8 Gorkha (Nepal) earthquake (2017) Tectonophysics, 714-715, pp. 1-3. DOI: 10.1016/j.tecto.2016.10.033
Levandowski, W., Zellman, M., Briggs, R. Gravitational body forces focus North American intraplate earthquakes (2017) Nature Communications, 8, art. no. 14314. DOI: 10.1038/ncomms14314
Personius, S.F., Briggs, R.W., Zebulon Maharrey, J., Angster, S.J., Mahan, S.A. A paleoseismic transect across the northwestern Basin and Range Province, northwestern Nevada and northeastern California, USA (2017) Geosphere, 13 (3), pp. 782-810. DOI: 10.1130/GES01380.1
Barnhart, W.D., Murray, J.R., Briggs, R.W., Gomez, F., Miles, C.P.J., Svarc, J., Riquelme, S., Stressler, B.J. Coseismic slip and early afterslip of the 2015 Illapel, Chile, earthquake: Implications for frictional heterogeneity and coastal uplift (2016) Journal of Geophysical Research: Solid Earth, 121 (8), pp. 6172-6191. DOI: 10.1002/2016JB013124
Briggs, R. Earthquakes: Megathrusts and mountain building (2016) Nature Geoscience, 9 (5), pp. 346-348. DOI: 10.1038/ngeo2697
Witter, R.C., Carver, G.A., Briggs, R.W., Gelfenbaum, G., Koehler, R.D., La Selle, S., Bender, A.M., Engelhart, S.E., Hemphill-Haley, E., Hill, T.D. Unusually large tsunamis frequent a currently creeping part of the Aleutian megathrust (2016) Geophysical Research Letters, 43 (1), pp. 76-84. DOI: 10.1002/2015GL066083
Wesnousky, S.G., Briggs, R.W., Caffee, M.W., Ryerson, F.J., Finkel, R.C., Owen, L.A. Terrestrial cosmogenic surface exposure dating of glacial and associated landforms in the Ruby Mountains-East Humboldt Range of central Nevada and along the northeastern flank of the Sierra Nevada (2016) Geomorphology, 268, pp. 72-81. DOI: 10.1016/j.geomorph.2016.04.027
Gagan, M.K., Sosdian, S.M., Scott-Gagan, H., Sieh, K., Hantoro, W.S., Natawidjaja, D.H., Briggs, R.W., Suwargadi, B.W., Rifai, H. Coral 13C/12C records of vertical seafloor displacement during megathrust earthquakes west of Sumatra (2015) Earth and Planetary Science Letters, 432, pp. 461-471. DOI: 10.1016/j.epsl.2015.10.002
Levandowski, W., Boyd, O.S., Briggs, R.W., Gold, R.D. A random-walk algorithm for modeling lithospheric density and the role of body forces in the evolution of the Midcontinent Rift (2015) Geochemistry, Geophysics, Geosystems, 16 (12), pp. 4084-4107. DOI: 10.1002/2015GC005961
Meltzner, A.J., Sieh, K., Chiang, H.-W., Wu, C.-C., Tsang, L.L.H., Shen, C.-C., Hill, E.M., Suwargadi, B.W., Natawidjaja, D.H., Philibosian, B., Briggs, R.W. Time-varying interseismic strain rates and similar seismic ruptures on the Nias-Simeulue patch of the Sunda megathrust (2015) Quaternary Science Reviews, 122, pp. 258-281. DOI: 10.1016/j.quascirev.2015.06.003
Barnhart, W.D., Briggs, R.W., Reitman, N.G., Gold, R.D., Hayes, G.P. Evidence for slip partitioning and bimodal slip behavior on a single fault: Surface slip characteristics of the 2013 Mw7.7 Balochistan, Pakistan earthquake (2015) Earth and Planetary Science Letters, 420, pp. 1-11. DOI: 10.1016/j.epsl.2015.03.027
Mueller, C.S., Briggs, R.W., Wesson, R.L., Petersen, M.D. Updating the USGS seismic hazard maps for Alaska (2015) Quaternary Science Reviews, 113, pp. 39-47. DOI: 10.1016/j.quascirev.2014.10.006
Kelsey, H.M., Witter, R.C., Engelhart, S.E., Briggs, R., Nelson, A., Haeussler, P., Corbett, D. Beach ridges as paleoseismic indicators of abrupt coastal subsidence during subduction zone earthquakes, and implications for Alaska-Aleutian subduction zone paleoseismology, southeast coast of the Kenai Peninsula, Alaska (2015) Quaternary Science Reviews, 113, pp. 147-158. DOI: 10.1016/j.quascirev.2015.01.006
Reitman, N.G., Bennett, S.E.K., Gold, R.D., Briggs, R.W., DuRoss, C.B. High-resolution trench photomosaics from image-based modeling: Workflow and error analysis (2015) Bulletin of the Seismological Society of America, 105 (5), pp. 2354-2366. DOI: 10.1785/0120150041
Gold, R.D., Reitman, N.G., Briggs, R.W., Barnhart, W.D., Hayes, G.P., Wilson, E. On- and off-fault deformation associated with the September 2013 Mw 7.7 Balochistan earthquake: Implications for geologic slip rate measurements (2015) Tectonophysics, 660, pp. 65-78. DOI: 10.1016/j.tecto.2015.08.019
Nelson, A.R., Briggs, R.W., Dura, T., Engelhart, S.E., Gelfenbaum, G., Bradley, L.-A., Forman, S.L., Vane, C.H., Kelley, K.A. Tsunami recurrence in the eastern Alaska-Aleutian arc: A Holocene stratigraphic record from Chirikof Island, Alaska (2015) Geosphere, 11 (4), pp. 1172-1203. DOI: 10.1130/GES01108.1
McNamara, D.E., Hayes, G.P., Benz, H.M., Williams, R.A., McMahon, N.D., Aster, R.C., Holland, A., Sickbert, T., Herrmann, R., Briggs, R., Smoczyk, G., Bergman, E., Earle, P. Reactivated faulting near Cushing, Oklahoma: Increased potential for a triggered earthquake in an area of United States strategic infrastructure (2015) Geophysical Research Letters, 42 (20), pp. 8328-8332. DOI: 10.1002/2015GL064669
Hayes, G.P., Briggs, R.W., Barnhart, W.D., Yeck, W.L., McNamara, D.E., Wald, D.J., Nealy, J.L., Benz, H.M., Gold, R.D., Jaiswal, K.S., Marano, K., Earle, P.S., Hearne, M.G., Smoczyk, G.M., Wald, L.A., Samsonov, S.V. Rapid characterization of the 2015 Mw 7.8 Gorkha, Nepal, Earthquake sequence and its seismotectonic context (2015) Seismological Research Letters, 86 (6), pp. 1557-1567. DOI: 10.1785/0220150145
Barnhart, W.D., Hayes, G.P., Briggs, R.W., Gold, R.D., Bilham, R. Ball-and-socket tectonic rotation during the 2013 Mw7.7 Balochistan earthquake (2014) Earth and Planetary Science Letters, 403, pp. 210-216. DOI: 10.1016/j.epsl.2014.07.001
Witter, R.C., Briggs, R.W., Engelhart, S.E., Gelfenbaum, G., Koehler, R.D., Barnhart, W.D. Little late Holocene strain accumulation and release on the Aleutian megathrust below the Shumagin Islands, Alaska (2014) Geophysical Research Letters, 41 (7), pp. 2359-2367. DOI: 10.1002/2014GL059393
Briggs, R.W., Engelhart, S.E., Nelson, A.R., Dura, T., Kemp, A.C., Haeussler, P.J., Corbett, D.R., Angster, S.J., Bradley, L.-A. Uplift and subsidence reveal a nonpersistent megathrust rupture boundary (Sitkinak Island, Alaska) (2014) Geophysical Research Letters, 41 (7), pp. 2289-2296. DOI: 10.1002/2014GL059380
Gold, R.D., Briggs, R.W., Personius, S.F., Crone, A.J., Mahan, S.A., Angster, S.J. Latest Quaternary paleoseismology and evidence of distributed dextral shear along the Mohawk Valley fault zone, northern Walker Lane, California (2014) Journal of Geophysical Research: Solid Earth, 119 (6), pp. 5014-5032. DOI: 10.1002/2014JB010987
Personius, S.F., Briggs, R.W., Nelson, A.R., Schermer, E.R., Zebulon Maharrey, J., Sherrod, B.L., Spaulding, S.A., Bradley, L.-A. Holocene earthquakes and right-lateral slip on the left-lateral Darrington-Devils Mountain fault zone, northern Puget Sound, Washington (2014) Geosphere, 10 (6), pp. 1482-1500. DOI: 10.1130/GES01067.1
Gold, R.D., Stephenson, W.J., Odum, J.K., Briggs, R.W., Crone, A.J., Angster, S.J. Concealed Quaternary strike-slip fault resolved with airborne lidar and seismic reflection: The Grizzly Valley fault system, northern Walker Lane, California (2013) Journal of Geophysical Research: Solid Earth, 118 (7), pp. 3753-3766. DOI: 10.1002/jgrb.50238
Gold, R., Depolo, C., Briggs, R., Crone, A., Gosse, J. Late quaternary slip-rate variations along the warm springs valley fault system, northern walker lane, California-Nevada border (2013) Bulletin of the Seismological Society of America, 103 (1), pp. 542-558. DOI: 10.1785/0120120020
Briggs, R.W., Wesnousky, S.G., Brune, J.N., Purvance, M.D., Mahan, S.A. Low footwall accelerations and variable surface rupture behavior on the fort sage mountains fault, Northeast California (2013) Bulletin of the Seismological Society of America, 103 (1), pp. 157-168. DOI: 10.1785/0120110313
Kemp, A.C., Engelhart, S.E., Culver, S.J., Nelson, A., Briggs, R.W., Haeussler, P.J. Modern salt-marsh and tidal-flat foraminifera from Sitkinak and Simeonof Islands, Southwestern Alaska (2013) Journal of Foraminiferal Research, 43 (1), pp. 88-98. DOI: 10.2113/gsjfr.43.1.88
Meltzner, A.J., Sieh, K., Chiang, H.-W., Shen, C.-C., Suwargadi, B.W., Natawidjaja, D.H., Philibosian, B., Briggs, R.W. Persistent termini of 2004- and 2005-like ruptures of the Sunda megathrust (2012) Journal of Geophysical Research: Solid Earth, 117 (4), art. no. B04405. DOI: 10.1029/2011JB008888
Wei, S., Fielding, E., Leprince, S., Sladen, A., Avouac, J.-P., Helmberger, D., Hauksson, E., Chu, R., Simons, M., Hudnut, K., Herring, T., Briggs, R. Superficial simplicity of the 2010 El Mayorg-Cucapah earthquake of Baja California in Mexico (2011) Nature Geoscience, 4 (9), pp. 615-618. DOI: 10.1038/ngeo1213
Hayes, G.P., Earle, P.S., Benz, H.M., Wald, D.J., Briggs, R.W. 88 Hours: The U.S. Geological survey national earthquake information center response to the 11 march 2011 Mw 9.0 tohoku earthquake (2011) Seismological Research Letters, 82 (4), pp. 481-493. DOI: 10.1785/gssrl.82.4.481
Prentice, C.S., Mann, P., Crone, A.J., Gold, R.D., Hudnut, K.W., Briggs, R.W., Koehler, R.D., Jean, P. Seismic hazard of the Enriquillog-Plantain Garden fault in Haiti inferred from palaeoseismology (2010) Nature Geoscience, 3 (11), pp. 789-793. DOI: 10.1038/ngeo991
Hayes, G.P., Briggs, R.W., Sladen, A., Fielding, E.J., Prentice, C., Hudnut, K., Mann, P., Taylor, F.W., Crone, A.J., Gold, R., Ito, T., Simons, M. Complex rupture during the 12 January 2010 Haiti earthquake (2010) Nature Geoscience, 3 (11), pp. 800-805. DOI: 10.1038/ngeo977
Hornbach, M.J., Braudy, N., Briggs, R.W., Cormier, M.-H., Davis, M.B., Diebold, J.B., Dieudonne, N., Douilly, R., Frohlich, C., Gulick, S.P.S., Johnson III, H.E., Mann, P., McHugh, C., Ryan-Mishkin, K., Prentice, C.S., Seeber, L., Sorlien, C.C., Steckler, M.S., Symithe, S.J., Taylor, F.W., Templeton, J. High tsunami frequency as a result of combined strike-slip faulting and coastal landslides (2010) Nature Geoscience, 3 (11), pp. 783-788. DOI: 10.1038/ngeo975
Meltzner, A.J., Sieh, K., Chiang, H.-W., Shen, C.-C., Suwargadi, B.W., Natawidjaja, D.H., Philibosian, B.E., Briggs, R.W., Galetzka, J. Coral evidence for earthquake recurrence and an A.D. 1390-1455 cluster at the south end of the 2004 Aceh-Andaman rupture (2010) Journal of Geophysical Research: Solid Earth, 115 (10), art. no. B10402. DOI: 10.1029/2010JB007499
Briggs, R., Hammond, W. Integrating geodetic and geologic data in maps of seismic hazard (2009) Eos, 90 (38), p. 334.
Briggs, R.W., Sieh, K., Amindon, W.H., Galetzka, J., Prayudi, D., Suprihanto, I., Sastra, N., Suwargadi, B., Natawidjaj, D., Farr, T.G. Persistent elastic behavior above a megathrust rupture patch: Nias island, West Sumatra (2008) Journal of Geophysical Research: Solid Earth, 113 (12), art. no. B12406. DOI: 10.1029/2008JB005684
Adams, K.D., Goebel, T., Graf, K., Smith, G.M., Camp, A.J., Briggs, R.W., Rhode, D. Late Pleistocene and Early Holocene lake-level fluctuations in the Lahontan Basin, Nevada: Implications for the distribution of archaeological sites (2008) Geoarchaeology, 23 (5), pp. 608-643. DOI: 10.1002/gea.20237
Turner, R., Koehler, R.D., Briggs, R.W., Wesnousky, S.G. Paleoseismic and slip-rate observations along the Honey Lake fault zone, northeastern California, USA (2008) Bulletin of the Seismological Society of America, 98 (4), pp. 1730-1736. DOI: 10.1785/0120070090
Taylor, F.W., Briggs, R.W., Frohlich, C., Brown, A., Hornbach, M., Papabatu, A.K., Meltzner, A.J., Billy, D. Rupture across arc segment and plate boundaries in the 1 April 2007 Solomons earthquake (2008) Nature Geoscience, 1 (4), pp. 253-257. DOI: 10.1038/ngeo159
Konca, A.O., Hjorleifsdottir, V., Song, T.-R.A., Avouac, J.-P., Helmberger, D.V., Ji, C., Sieh, K., Briggs, R., Meltzner, A. Rupture kinematics of the 2005 Mw 8.6 m Nias-Simeulue earthquake from the joint inversion of seismic and geodetic data (2007) Bulletin of the Seismological Society of America, 97 (1 A SUPPL.), pp. S307-S322. DOI: 10.1785/0120050632
Briggs, R.W., Sieh, K., Meltzner, A.J., Natawidjaja, D., Galetzka, J., Suwargadi, B., Hsu, Y.-J., Simons, M., Hananto, N., Suprihanto, I., Prayudi, D., Avouac, J.-P., Prawirodirdjo, L., Bock, Y. Deformation and slip along the Sunda megathrust in the great 2005 Nias-Simeulue earthquake (2006) Science, 311 (5769), pp. 1897-1901. DOI: 10.1126/science.1122602
Kumar, S., Wesnousky, S.G., Rockwell, T.K., Briggs, R.W., Thakur, V.C., Jayangondaperumal, R. Paleoseismic evidence of great surface rupture earthquakes along the Indian Himalaya (2006) Journal of Geophysical Research: Solid Earth, 111 (3), art. no. B03304, . DOI: 10.1029/2004JB003309
Briggs, R.W., Wesnousky, S.G., Adams, K.D. Late Pleistocene and late Holocene lake highstands in the Pyramid Lake subbasin of Lake Lahontan, Nevada, USA (2005) Quaternary Research, 64 (2), pp. 257-263. DOI: 10.1016/j.yqres.2005.02.011
Briggs, R.W., Wesnousky, S.G. Late Pleistocene and Holocene paleoearthquake activity of the Olinghouse fault zone, Nevada (2005) Bulletin of the Seismological Society of America, 95 (4), pp. 1301-1313. DOI: 10.1785/0120040129
Wesnousky, S.G., Barron, A.D., Briggs, R.W., Caskey, S.J., Kumar, S., Owen, L. Paleoseismic transect across the northern Great Basin (2005) Journal of Geophysical Research: Solid Earth, 110 (5), art. no. B05408, pp. 1-25. DOI: 10.1029/2004JB003283
Briggs, R.W., Wesnousky, S.G. Late Pleistocene fault slip rate, earthquake recurrence, and recency of slip along the Pyramid Lake fault zone, northern Walker Lane, United States (2004) Journal of Geophysical Research: Solid Earth, 109 (8), pp. B08402 1-16. DOI: 10.1029/2003JB002717
Wesnousky, S.G., Seeber, L., Rockwell, T.K., Thakur, V., Briggs, R., Kumar, S., Ragona, D. Eight days in Bhuj: Field report bearing on surface rupture and genesis of the 26 January 2001 earthquake in India (2001) Seismological Research Letters, 72 (5), pp. 514-524.
Science and Products
Integrate urban‐scale seismic hazard analyses with the U.S. National Seismic Hazard Model
For more than 20 yrs, damage patterns and instrumental recordings have highlighted the influence of the local 3D geologic structure on earthquake ground motions (e.g., M">M 6.7 Northridge, California, Gao et al., 1996; M">M 6.9 Kobe, Japan, Kawase, 1996; M">M 6.8 Nisqually, Washington, Frankel...
Moschetti, Morgan P.; Luco, Nicolas; Frankel, Arthur; Petersen, Mark D.; Aagaard, Brad T.; Baltay, Annemarie S.; Blanpied, Michael; Boyd, Oliver; Briggs, Richard; Gold, Ryan D.; Graves, Robert; Hartzell, Stephen; Rezaeian, Sanaz; Stephenson, William J.; Wald, David J.; Williams, Robert A.; Withers, Kyle Refining fault slip rates using multiple displaced terrace risers—An example from the Honey Lake fault, NE California, USA
Faulted terrace risers are semi-planar features commonly used to constrain Quaternary slip rates along strike-slip faults. These landforms are difficult to date directly and therefore their ages are commonly bracketed by age estimates of the adjacent upper and lower terrace surfaces. However, substantial differences in the ages of the upper and...
Gold, Ryan D.; Briggs, Richard; Crone, Anthony J.; Duross, Christopher A paleoseismic transect across the northwestern Basin and Range Province, northwestern Nevada and northeastern California, USA
We use new and existing data to compile a record of ∼18 latest Quaternary large-magnitude surface-rupturing earthquakes on 7 fault zones in the northwestern Basin and Range Province of northwestern Nevada and northeastern California. The most recent earthquake on all faults postdates the ca. 18–15 ka last glacial highstand of pluvial Lake Lahontan...
Personius, Stephen; Briggs, Richard; Maharrey, J. Zebulon; Angster, Stephen J.; Mahan, Shannon Gravitational body forces focus North American intraplate earthquakes
Earthquakes far from tectonic plate boundaries generally exploit ancient faults, but not all intraplate faults are equally active. The North American Great Plains exemplify such intraplate earthquake localization, with both natural and induced seismicity generally clustered in discrete zones. Here we use seismic velocity, gravity and topography to...
Levandowski, William Brower; Zellman, Mark; Briggs, Richard Introduction to the special issue on the 25 April 2015 Mw 7.8 Gorkha(Nepal) earthquake
On April 25, 2015, a moment magnitude (Mw) 7.8 earthquake struck central Nepal, breaking a section of the broader Himalayan Front that had been largely quiescent in moderate-to-large earthquakes for much of the modern seismological era. Ground shaking associated with the event resulted in a broad distribution of triggered avalanches and landslides...
Hayes, Gavin; Briggs, Richard Unusually large tsunamis frequent a currently creeping part of the Aleutian megathrust
Current models used to assess earthquake and tsunami hazards are inadequate where creep dominates a subduction megathrust. Here we report geological evidence for large tsunamis, occurring on average every 300–340 years, near the source areas of the 1946 and 1957 Aleutian tsunamis. These areas bookend a postulated seismic gap over 200 km long...
Witter, Robert C.; Carver, G.A.; Briggs, Richard; Gelfenbaum, Guy R.; Koehler, R.D.; La Selle, SeanPaul M.; Bender, Adrian M.; Engelhart, S.E.; Hemphill-Haley, E.; Hill, Troy D. Rapid characterization of the 2015 Mw 7.8 Gorkha, Nepal, earthquake sequence and its seismotectonic context
Earthquake response and related information products are important for placing recent seismic events into context and particularly for understanding the impact earthquakes can have on the regional community and its infrastructure. These tools are even more useful if they are available quickly, ahead of detailed information from the areas affected...
Hayes, Gavin; Briggs, Richard; Barnhart, William D.; Yeck, William; McNamara, Daniel E.; Wald, David J.; Nealy, Jennifer; Benz, Harley M.; Gold, Ryan D.; Jaiswal, Kishor S.; Marano, Kristin; Earle, Paul S.; Hearne, Mike; Smoczyk, Gregory M.; Wald, Lisa A.; Samsonov, Sergey Reactivated faulting near Cushing, Oklahoma: Increased potential for a triggered earthquake in an area of United States strategic infrastructure
In October 2014 two moderate-sized earthquakes (Mw 4.0 and 4.3) struck south of Cushing, Oklahoma, below the largest crude oil storage facility in the world. Combined analysis of the spatial distribution of earthquakes and regional moment tensor focal mechanisms indicate reactivation of a subsurface unnamed and unmapped left-lateral strike-slip...
McNamara, Daniel E.; Hayes, Gavin; Benz, Harley M.; Williams, Robert; McMahon, Nicole D; Aster, R.C.; Holland, Austin F.; Sickbert, T; Herrmann, Robert B.; Briggs, Richard; Smoczyk, Gregory M.; Bergman, Eric; Earle, Paul S. A random-walk algorithm for modeling lithospheric density and the role of body forces in the evolution of the Midcontinent Rift
This paper develops a Monte Carlo algorithm for extracting three-dimensional lithospheric density models from geophysical data. Empirical scaling relationships between velocity and density create a 3D starting density model, which is then iteratively refined until it reproduces observed gravity and topography. This approach permits deviations from...
Levandowski, William Brower; Boyd, Oliver; Briggs, Richard; Gold, Ryan D. On- and off-fault deformation associated with the September 2013 Mw7.7 Balochistan earthquake: implications for geologic slip rate measurements
The 24 September 2013 Mw7.7 Balochistan, Pakistan earthquake ruptured a ~ 200 km-long stretch of the Hoshab fault in southern Pakistan and produced the second-largest lateral surface displacement observed for a continental strike-slip earthquake. We remotely measured surface deformation associated with this event using high-resolution (0...
Gold, Ryan D.; Reitman, Nadine G.; Briggs, Richard; Barnhart, William; Hayes, Gavin; Wilson, Earl M. Tsunami recurrence in the eastern Alaska-Aleutian arc: A Holocene stratigraphic record from Chirikof Island, Alaska
Despite the role of the Alaska-Aleutian megathrust as the source of some of the largest earthquakes and tsunamis, the history of its pre–twentieth century tsunamis is largely unknown west of the rupture zone of the great (magnitude, M 9.2) 1964 earthquake. Stratigraphy in core transects at two boggy lowland sites on Chirikof Island’s...
Nelson, Alan R.; Briggs, Richard; Dura, Tina; Engelhart, Simon E.; Gelfenbaum, Guy; Bradley, Lee-Ann; Forman, S.L.; Vane, Christopher H.; Kelley, K.A. Updating the USGS seismic hazard maps for Alaska
The U.S. Geological Survey makes probabilistic seismic hazard maps and engineering design maps for building codes, emergency planning, risk management, and many other applications. The methodology considers all known earthquake sources with their associated magnitude and rate distributions. Specific faults can be modeled if slip-rate or recurrence...
Mueller, Charles; Briggs, Richard; Wesson, Robert L.; Petersen, Mark D.