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Year Published: 2016

Chapter 5: Buildings (EERI Earthquake Reconnaissance Team Report: M7.8 Gorkha, Nepal Earthquake on April 25, 2015 and its Aftershocks)

The most common building typologies in Nepal are reinforced concrete (RC) frame buildings with masonry infill walls, unreinforced masonry (URM) bearing wall buildings, and wood frame buildings (Figure 5-1). The RC frames with masonry infills are commonly constructed in urban and semi-urban areas. Most of these buildings are three to five stories...

Kaushik, Hemant; Bevington, John; Jaiswal, Kishor; Lizundia, Bret; Shrestha, Surya

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Year Published: 2016

Seismic‐hazard forecast for 2016 including induced and natural earthquakes in the central and eastern United States

The U.S. Geological Survey (USGS) has produced a one‐year (2016) probabilistic seismic‐hazard assessment for the central and eastern United States (CEUS) that includes contributions from both induced and natural earthquakes that are constructed with probabilistic methods using alternative data and inputs. This hazard assessment builds on our 2016...

Petersen, Mark D.; Mueller, Charles; Moschetti, Morgan P.; Hoover, Susan M.; Llenos, Andrea L.; Ellsworth, William L.; Michael, Andrew J.; Rubinstein, Justin L.; McGarr, Arthur F.; Rukstales, Kenneth S.

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Year Published: 2016

2016 Eastern Section SSA Annual Meeting Report

Report on the Eastern Section Seismological Society of America Meeting.

Pratt, Thomas L.; Goulet, Christine A.; Boyd, Oliver S.
Pratt, T., Goulet, C., and Boyd, O., 2016, 2016 Eastern Section SSA Annual Meeting Report, Seismological Research Letters, v. 88, p. 224-262. DOI: 10.1785/0220160205

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Year Published: 2016

Global statistical maps of extreme-event magnetic observatory 1 min first differences in horizontal intensity

Analysis is made of the long-term statistics of three different measures of ground level, storm time geomagnetic activity: instantaneous 1 min first differences in horizontal intensity ΔBh, the root-mean-square of 10 consecutive 1 min differences S, and the ramp change R over 10 min. Geomagnetic latitude maps of the cumulative...

Love, Jeffrey J.; Coisson, Pierdavide; Pulkkinen, Antti

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Year Published: 2016

Origins of a national seismic system in the United States

This historical review traces the origins of the current national seismic system in the United States, a cooperative effort that unifies national, regional, and local‐scale seismic monitoring within the structure of the Advanced National Seismic System (ANSS). The review covers (1) the history and technological evolution of U.S. seismic...

Filson, John R.; Arabasz, Walter J.

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Year Published: 2016

The geomagnetic blitz of September 1941

Seventy-five years ago, on 18–19 September 1941, the Earth experienced a great magnetic storm, one of the most intense ever recorded. It arrived at a poignant moment in history, when radio and electrical technology was emerging as a central part of daily life and when much of the world was embroiled in World War II, which the United States...

Love, Jeffrey J.; Coisson, Pierdavide
Love, J. J. & Coisson, P., 2016. The geomagnetic blitz of September 1941, Eos, 97(20), 18-22, doi:10.1029/2016EO059319.

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Year Published: 2016

Annualized earthquake loss estimates for California and their sensitivity to site amplification

Input datasets for annualized earthquake loss (AEL) estimation for California were updated recently by the scientific community, and include the National Seismic Hazard Model (NSHM), site‐response model, and estimates of shear‐wave velocity. Additionally, the Federal Emergency Management Agency’s loss estimation tool, Hazus, was updated to include...

Chen, Rui; Jaiswal, Kishor; Bausch, D; Seligson, H; Wills, C.J.

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Year Published: 2016

Constraining the relative importance of raindrop- and flow-driven sediment transport mechanisms in postwildfire environments and implications for recovery time scales

Mountain watersheds recently burned by wildfire often experience greater amounts of runoff and increased rates of sediment transport relative to similar unburned areas. Given the sedimentation and debris flow threats caused by increases in erosion, more work is needed to better understand the physical mechanisms responsible for the observed...

McGuire, Luke; Kean, Jason W.; Staley, Dennis M.; Rengers, Francis K.; Wasklewicz, Thad A.
McGuire, L. A., J. W. Kean, D. M. Staley, F. K. Rengers, and T. A. Wasklewicz (2016), Constraining the relative importance of raindrop- and flow-driven sediment transport mechanisms in postwildfire environments and implications for recovery time scales, J. Geophys. Res. Earth Surf., 121, 2211–2237, doi:10.1002/2016JF003867.

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Year Published: 2016

A rare moderate‐sized (Mw 4.9) earthquake in Kansas: Rupture process of the Milan, Kansas, earthquake of 12 November 2014 and its relationship to fluid injection

The largest recorded earthquake in Kansas occurred northeast of Milan on 12 November 2014 (Mw 4.9) in a region previously devoid of significant seismic activity. Applying multistation processing to data from local stations, we are able to detail the rupture process and rupture geometry of the mainshock, identify the causative fault plane, and...

Choy, George; Rubinstein, Justin L.; Yeck, William L.; McNamara, Daniel E.; Mueller, Charles; Boyd, Oliver S.
George L. Choy, Justin L. Rubinstein, William L. Yeck, Daniel E. McNamara, Charles S. Mueller, Oliver S. Boyd DOI: 10.1785/0220160100 Published on November 2016, First Published on September 14, 2016

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Year Published: 2016

St. Louis area earthquake hazards mapping project; seismic and liquefaction hazard maps

We present probabilistic and deterministic seismic and liquefaction hazard maps for the densely populated St. Louis metropolitan area that account for the expected effects of surficial geology on earthquake ground shaking. Hazard calculations were based on a map grid of 0.005°, or about every 500 m, and are thus higher in resolution than any...

Cramer, Chris H.; Bauer, Robert A.; Chung, Jae-won; Rogers, David; Pierce, Larry; Voigt, Vicki; Mitchell, Brad; Gaunt, David; Williams, Robert; Hoffman, David; Hempen, Gregory L.; Steckel, Phyllis; Boyd, Oliver S.; Watkins, Connor M.; Tucker, Kathleen; McCallister, Natasha
Cramer C.H., Bauer R.A., Chung J.-W., Rogers J.D., Pierce L., Voigt V., Mitchell B., Gaunt D., Williams R.A., Hoffman D., Hempen G.L., Steckel P.J., Boyd O.S., Watkins C.M., Tucker K., McCallister N.S. St. Louis area earthquake hazards mapping project; seismic and liquefaction hazard maps Seismological Research Letters, January, 2017, Vol. 88, Issue 1, pp. 206-223

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Year Published: 2016

Fault segmentation: New concepts from the Wasatch Fault Zone, Utah, USA

The question of whether structural segment boundaries along multisegment normal faults such as the Wasatch fault zone (WFZ) act as persistent barriers to rupture is critical to seismic hazard analyses. We synthesized late Holocene paleoseismic data from 20 trench sites along the central WFZ to evaluate earthquake rupture length and fault...

Duross, Christopher; Personius, Stephen F.; Crone, Anthony J.; Olig, Susan S.; Hylland, Michael D.; Lund, William R.; Schwartz, David P.

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Year Published: 2016

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 P.; Briggs, Richard W.

The Southwest Region ranges from the Colorado Rockies to the Gulf Coast and the Western Deserts to the Great Plains. The Southwest Region conducts multi- and interdisciplinary research and monitoring in locations across the Region, the United States, around the world, and across our solar system.

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