Earthquake Hazards

Publications

Filter Total Items: 1,480
Publication Thumbnail
Year Published: 2018

Slip history of the La Cruz fault: Development of a late Miocene transformin response to increased rift obliquity in the northern Gulf of California

The Gulf of California rift has accommodated oblique divergence of the Pacific and North America plates in north-western México since Miocene time. Due to its infancy, its rifted margins preserve a rare onshore record of early continental break-up processes and an opportunity to investigate the role of rift obliquity in strain localization. We map...

Bennett, Scott E. K.; Oskin, Michael E.; Iriondo, Alexander; Kunk, Michael J.
Bennett, S.E.K., Oskin, M.E., Iriondo, A., and Kunk, M.J., 2016, Slip history of the La Cruz fault: Development of a late Miocene transform in response to increased rift obliquity in the northern Gulf of California: Tectonophysics, v. 693, Part B, p. 409-435, https://doi.org/10.1016/j.tecto.2016.06.013.

Publication Thumbnail
Year Published: 2017

The HayWired Earthquake Scenario

ForewordThe 1906 Great San Francisco earthquake (magnitude 7.8) and the 1989 Loma Prieta earthquake (magnitude 6.9) each motivated residents of the San Francisco Bay region to build countermeasures to earthquakes into the fabric of the region. Since Loma Prieta, bay-region communities, governments, and utilities have invested tens of billions of...

Detweiler, Shane T.; Wein, Anne M.
Detweiler, S.T., and Wein, A.M., eds., 2017, The HayWired earthquake scenario: U.S. Geological Survey Scientific Investigations Report 2017–5013, https://doi.org/10.3133/sir20175013.

Publication Thumbnail
Year Published: 2017

Amplification of earthquake ground motions in Washington, DC, and implications for hazard assessments in central and eastern North America

The extent of damage in Washington, DC, from the 2011 Mw 5.8 Mineral, VA, earthquake was surprising for an epicenter 130 km away; U.S. Geological Survey “Did-You-Feel-It” reports suggest that Atlantic Coastal Plain and other unconsolidated sediments amplified ground motions in the city. We measure this amplification relative to...

Pratt, Thomas L.; Horton, J. Wright; Munoz, Jessica; Hough, Susan E.; Chapman, Martin C.; Olgun, C. Guney
Pratt, T. L., Horton, J. W., Jr., Muñoz, J., Hough, S. E., Chapman, M. C., & Olgun, C. G. (2017). Amplification of earthquake ground motions in Washington, DC, and implications for hazard assessments in central and eastern North America. Geophysical Research Letters, 44, 12,150–12,160. https://doi.org/10.1002/2017GL075517

Publication Thumbnail
Year Published: 2017

An open repository of earthquake-triggered ground-failure inventories

Earthquake-triggered ground failure, such as landsliding and liquefaction, can contribute significantly to losses, but our current ability to accurately include them in earthquake-hazard analyses is limited. The development of robust and widely applicable models requires access to numerous inventories of ground failures triggered by earthquakes...

Schmitt, Robert G.; Tanyas, Hakan; Nowicki Jessee, M. Anna; Zhu, Jing; Biegel, Katherine M.; Allstadt, Kate E.; Jibson, Randall W.; Thompson, Eric M.; van Westen, Cees J.; Sato, Hiroshi P.; Wald, David J.; Godt, Jonathan W.; Gorum, Tolga; Xu, Chong; Rathje, Ellen M.; Knudsen, Keith L.
Schmitt, R.G., Tanyas, Hakan, Nowicki Jessee, M.A., Zhu, Jing, Biegel, K.M., Allstadt, K.E., Jibson, R.W., Thompson, E.M., van Westen, C.J., Sato, H.P., Wald, D.J., Godt, J.W., Gorum, Tolga, Xu, Chong, Rathje, E.M., Knudsen, K.L., 2017, An open repository of earthquake-triggered ground-failure inventories: U.S. Geological Survey Data Series 1064, 17 p., https://doi.org/10.3133/ds1064.

Publication Thumbnail
Year Published: 2017

P- and S-wave velocity models incorporating the Cascadia subduction zone for 3D earthquake ground motion simulations—Update for Open-File Report 2007–1348

In support of earthquake hazards studies and ground motion simulations in the Pacific Northwest, threedimensional (3D) P- and S-wave velocity (VP and VS , respectively) models incorporating the Cascadia subduction zone were previously developed for the region encompassed from about 40.2°N. to 50°N. latitude, and from about 122°W. to 129°W....

Stephenson, William J.; Reitman, Nadine G.; Angster, Stephen J.
Stephenson, W.J., Reitman, N.G., and Angster, S.J., 2017, P- and S-wave velocity models incorporating the Cascadia subduction zone for 3D earthquake ground motion simulations, version 1.6—Update for Open-File Report 2007–1348: U.S. Geological Survey Open-File Report 2017–1152, 17 p., https://doi.org/10.3133/ofr20171152. [Supersedes USGS Open-File Report 2007–1348.]

Publication Thumbnail
Year Published: 2017

U.S. Geological Survey National Strong-Motion Project strategic plan, 2017–22

The mission of the National Strong-Motion Project is to provide measurements of how the ground and built environment behave during earthquake shaking to the earthquake engineering community, the scientific community, emergency managers, public agencies, industry, media, and other users for the following purposes: Improving engineering evaluations...

Aagaard, Brad T.; Celebi, Mehmet; Gee, Lind; Graves, Robert; Jaiswal, Kishor; Kalkan, Erol; Knudsen, Keith L.; Luco, Nicolas; Smith, James; Steidl, Jamison; Stephens, Christopher D.
Aagaard, Brad, Celebi, Mehmet, Gee, Lind, Graves, Robert, Jaiswal, Kishor, Kalkan, Erol, Knudsen, Keith, Luco, Nico, Smith, James, Steidl, Jamison, and Stephens, Christopher, 2017, U.S. Geological Survey National Strong-Motion Project strategic plan, 2017–22: U.S. Geological Survey Open-File Report 2017–1156, 14 p., https://doi.org/10.3133/ofr20171156.

Publication Thumbnail
Year Published: 2017

Aftershocks, earthquake effects, and the location of the large 14 December 1872 earthquake near Entiat, central Washington

Reported aftershock durations, earthquake effects, and other observations from the large 14 December 1872 earthquake in central Washington are consistent with an epicenter near Entiat, Washington. Aftershocks were reported for more than 3 months only near Entiat. Modal intensity data described in this article are consistent with an Entiat area...

Brocher, Thomas M.; Hopper, Margaret G.; Algermissen, S.T. Ted; Perkins, David M.; Brockman, Stanley R.; Arnold, Edouard P.
Brocher, T. M., M. G. Hopper, S. T. Algermissen, D. M. Perkins, S. R. Brockman, and E. P. Arnold (2018). Aftershocks, earthquake effects, and location of the large 14 December 1872 earthquake near Entiat, central Washington, Bull. Seism. Soc. Am., v. 108, no. 1, p. 66-83, 2018, doi: 10.1785/0120170224.

Publication Thumbnail
Year Published: 2017

A prototype operational earthquake loss model for California based on UCERF3-ETAS – A first look at valuation

We present a prototype operational loss model based on UCERF3-ETAS, which is the third Uniform California Earthquake Rupture Forecast with an Epidemic Type Aftershock Sequence (ETAS) component. As such, UCERF3-ETAS represents the first earthquake forecast to relax fault segmentation assumptions and to include multi-fault ruptures, elastic-rebound...

Field, Edward H.; Porter, Keith; Milner, Kevn
Field, E. H., K. Porter, and K. Milner (2017). A Prototype Operational Earthquake Loss Model for California Based on UCERF3-ETAS – A First Look at Valuation, Earthquake Spectra, Volume 33, No. 4, pages 1–21, DOI: 10.1193/011817EQS017M

Publication Thumbnail
Year Published: 2017

Analysis of the variability in ground-motion synthesis and inversion

In almost all past inversions of large-earthquake ground motions for rupture behavior, the goal of the inversion is to find the “best fitting” rupture model that predicts ground motions which optimize some function of the difference between predicted and observed ground motions. This type of inversion was pioneered in the linear-inverse sense by...

Spudich, Paul A.; Cirella, Antonella; Scognamiglio, Laura; Tinti, Elisa
Spudich, P., Cirella, A., Scognamiglio, L., and Tinti, E., 2017, Analysis of the variability in ground-motion synthesis and inversion: U.S. Geological Survey Open-File Report 2017–1151, 39 p., https://doi.org/10.3133/ofr20171151.

Publication Thumbnail
Year Published: 2017

Considerations in comparing the U.S. Geological Survey one‐year induced‐seismicity hazard models with “Did You Feel It?” and instrumental data

The recent steep increase in seismicity rates in Oklahoma, southern Kansas, and other parts of the central United States led the U.S. Geological Survey (USGS) to develop, for the first time, a probabilistic seismic hazard forecast for one year (2016) that incorporates induced seismicity. In this study, we explore a process to ground‐truth the...

White, Isabel; Liu, Taojun; Luco, Nicolas; Liel, Abbie
White IJO, Liu T, Luco N, & Liel AB (2017), "Considerations in Comparing the U.S. Geological Survey One-Year Induced-Seismicity Hazard Models with "Did You Feel It?" and Instrumental Data," Seismological Research Letters, Vol. 89(1), pp. 127-137.

Publication Thumbnail
Year Published: 2017

A wideband magnetoresistive sensor for monitoring dynamic fault slip in laboratory fault friction experiments

A non-contact, wideband method of sensing dynamic fault slip in laboratory geophysical experiments employs an inexpensive magnetoresistive sensor, a small neodymium rare earth magnet, and user built application-specific wideband signal conditioning. The magnetoresistive sensor generates a voltage proportional to the changing angles of magnetic...

Kilgore, Brian D.
Kilgore BD. A Wideband Magnetoresistive Sensor for Monitoring Dynamic Fault Slip in Laboratory Fault Friction Experiments. Sensors. 2017; 17(12):2790.

Publication Thumbnail
Year Published: 2017

Earthquake Early Warning ShakeAlert System: Testing and certification platform

Earthquake early warning systems provide warnings to end users of incoming moderate to strong ground shaking from earthquakes. An earthquake early warning system, ShakeAlert, is providing alerts to beta end users in the western United States, specifically California, Oregon, and Washington. An essential aspect of the earthquake early warning...

Cochran, Elizabeth S.; Kohler, Monica D.; Given, Douglas D.; Guiwits, Stephen; Andrews, Jennifer; Meier, Men-Andrin; Ahmad, Mohammad; Henson, Ivan; Hartog, J. Renate; Smith, Deborah
Cochran, E. S., Kohler, M. D., Given, D. D., Guiwits, S., Andrews, J., Meier, M.-A., Ahmad, M., Henson, I., Hartog, R., Smith, D. E. (2018). Earthquake Early Warning ShakeAlert System: Testing and Certification Platform, Seismological Research Letters, 89 (1), 108–117, doi: https://doi.org/10.1785/0220170138.