Publications
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2014 Update of the United States National Seismic Hazard Maps
The U.S. National Seismic Hazard Maps are revised every six years, corresponding with the update cycle of the International Building Code. These maps cover the conterminous U.S. and will be updated in 2014 using the best-available science that is obtained from colleagues at regional and topical workshops, which are convened in 2012-2013. Maps for Alaska and Hawaii will be updated shortly following
Authors
M.D. Petersen, C.S. Mueller, K. M. Haller, M. Moschetti, S. C. Harmsen, E. H. Field, K.S. Rukstales, Y. Zeng, D. M. Perkins, P. Powers, S. Rezaeian, N. Luco, A. Olsen, R. Williams
Example applications of a stochastic gound motion simulation methodology in strutural engineering
No abstract available.
Authors
S. Rezaeian, N. Luco
Late Holocene earthquake history of the Brigham City segment of the Wasatch fault zone at the Hansen Canyon, Kotter Canyon, and Pearsons Canyon trench sites, Box Elder County, Utah
Of the five central segments of the Wasatch fault zone (WFZ) having evidence of recurrent Holocene surface-faulting earthquakes, the Brigham City segment (BCS) has the longest elapsed time since its most recent surface-faulting event (~2.1 kyr) compared to its mean recurrence time between events (~1.3 kyr). Thus, the BCS has the highest time-dependent earthquake probability of the central WFZ. We
Authors
Christopher B. DuRoss, Stephen F. Personius, Anthony J. Crone, Greg N. McDonald, Richard W. Briggs
Developing ShakeCast statistical fragility analysis framework for rapid post-earthquake assessment
When an earthquake occurs, the U. S. Geological Survey (USGS) ShakeMap estimates the extent of potentially damaging shaking and provides overall information regarding the affected areas. The USGS ShakeCast system is a freely-available, post-earthquake situational awareness application that automatically retrieves earthquake shaking data from ShakeMap, compares intensity measures against users’ fac
Authors
K.-W. Lin, D. J. Wald
Improving PAGER's real-time earthquake casualty and loss estimation toolkit: a challenge
We describe the on-going developments of PAGER’s loss estimation models, and discuss value-added web content that can be generated related to exposure, damage and loss outputs for a variety of PAGER users. These developments include identifying vulnerable building types in any given area, estimating earthquake-induced damage and loss statistics by building type, and developing visualization aids t
Authors
K. S. Jaiswal, D. J. Wald
A terrestrial lidar-based workflow for determining three-dimensional slip vectors and associated uncertainties
Three-dimensional (3D) slip vectors recorded by displaced landforms are difficult to constrain across complex fault zones, and the uncertainties associated with such measurements become increasingly challenging to assess as landforms degrade over time. We approach this problem from a remote sensing perspective by using terrestrial laser scanning (TLS) and 3D structural analysis. We have developed
Authors
Peter O. Gold, Eric Cowgill, Oliver Kreylos, Ryan D. Gold
The GED4GEM project: development of a Global Exposure Database for the Global Earthquake Model initiative
In order to quantify earthquake risk of any selected region or a country of the world within the Global Earthquake Model (GEM) framework (www.globalquakemodel.org/), a systematic compilation of building inventory and population exposure is indispensable. Through the consortium of leading institutions and by engaging the domain-experts from multiple countries, the GED4GEM project has been working t
Authors
P. Gamba, D. Cavalca, K. S. Jaiswal, C. Huyck, H. Crowley
Damping scaling of response spectra for shallow crustal earthquakes in active tectonic regions
No abstract available.
Authors
S. Rezaeian, Y. Bozorgnia, I.M. Idriss, K. Campbell, N. Abrahamson, W. Silva
Impact-based earthquake alerts with the U.S. Geological Survey's PAGER system: what's next?
In September 2010, the USGS began publicly releasing earthquake alerts for significant earthquakes around the globe based on estimates of potential casualties and economic losses with its Prompt Assessment of Global Earthquakes for Response (PAGER) system. These estimates significantly enhanced the utility of the USGS PAGER system which had been, since 2006, providing estimated population exposure
Authors
D. J. Wald, K. S. Jaiswal, K. D. Marano, D. Garcia, E. So, M. Hearne
Demand surge following earthquakes
Demand surge is understood to be a socio-economic phenomenon where repair costs for the same damage are higher after large- versus small-scale natural disasters. It has reportedly increased monetary losses by 20 to 50%. In previous work, a model for the increased costs of reconstruction labor and materials was developed for hurricanes in the Southeast United States. The model showed that labor cos
Authors
Anna H. Olsen
Holocene behavior of the Brigham City segment: implications for forecasting the next large-magnitude earthquake on the Wasatch fault zone, Utah
The Brigham City segment (BCS), the northernmost Holocene‐active segment of the Wasatch fault zone (WFZ), is considered a likely location for the next big earthquake in northern Utah. We refine the timing of the last four surface‐rupturing (~Mw 7) earthquakes at several sites near Brigham City (BE1, 2430±250; BE2, 3490±180; BE3, 4510±530; and BE4, 5610±650 cal yr B.P.) and calculate mean recurrenc
Authors
Stephen F. Personius, Christopher B. DuRoss, Anthony J. Crone
Extraordinary distance limits of landslides triggered by the 2011 Mineral, Virginia, earthquake
The 23 August 2011 Mineral, Virginia, earthquake (Mw 5.8) was the largest to strike the eastern U.S. since 1897 and was felt over an extraordinarily large area. Although no large landslides occurred, the shaking did trigger many rock and soil falls from steep river banks and natural cliffs in the epicentral area and from steep road cuts along, and northwest of, the Blue Ridge Parkway. We mapped th
Authors
Randall W. Jibson, Edwin L. Harp