Publications
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A domestic earthquake impact alert protocol based on the combined USGS PAGER and FEMA Hazus loss estimation systems
The U.S. Geological Survey’s PAGER alert system provides rapid (10-20 min) but general loss estimates of ranges of fatalities and economic impact for significant global earthquakes. FEMA’s Hazus software, in contrast, provides time consuming (2-5 hours) but more detailed loss information quantified in terms of structural, social, and economic consequences estimated at a much higher spatial resolut
Authors
David J. Wald, Hope A. Seligson, Jesse Rozelle, Jordan Burns, Kristin Marano, Kishor S. Jaiswal, Mike Hearne, Douglas Bausch
The U.S. Geological Survey’s Rapid Seismic Array Deployment for the 2019 Ridgecrest Earthquake Sequence
Rapid seismic deployments following large earthquakes capture ephemeral near‐field recordings of aftershocks and ambient noise that can provide valuable data for seismological studies. The U.S. Geological Survey installed 19 temporary seismic stations following the 4 July 2019 Mw 6.4 and 6 July 2019 (UTC) Mw 7.1 earthquakes near the city of Ridgecrest, California. The stations record the aftershoc
Authors
Elizabeth S. Cochran, Emily Wolin, Daniel E. McNamara, Alan Yong, David C. Wilson, Mark Alvarez, Nicholas van der Elst, Adria Ruth McClain, Jamison Haase Steidl
A 100-year geoelectric hazard analysis for the U.S. high-voltage power grid
A once-per-century geoelectric hazard map is created for the United States high-voltage
power grid. A statistical extrapolation from 31 years of magnetic field measurements is
made by identifying 84 geomagnetic storms with the Kp and Dst indices. Data from 24
geomagnetic observatories, 1079 magnetotelluric survey sites, and 17,258 transmission
lines are utilized to perform a geoelectric hazard
Authors
Greg M. Lucas, Jeffrey J. Love, Anna Kelbert, Paul A. Bedrosian, E. Joshua Rigler
Peak ground motions and site response at Anza and Imperial Valley, California
Power spectra of shear-waves for eighteen earthquakes from the Anza-Imperial Valley region were inverted for source, mid-path Q, site attenuation and site response. The motivation was whether differences in site attenuation (parameterized as t*, r/cQ, where r is distance along ray path near the site, c is shear velocity and Q is the quality factor that parameterizes attenuation) and site response
Authors
Jon Peter B. Fletcher, John Boatwright
How often can Earthquake Early Warning systems alert sites with high intensity ground motion?
Although numerous Earthquake Early Warning (EEW) algorithms have been developed we still lack a detailed understanding of how often and under what circumstances useful ground motion alerts can be provided to end-users. Here we analyze the alerting performance of the PLUM, EPIC and FinDer algorithms by running them retrospectively on the seismic strong motion data of the 219 earthquakes in Japan si
Authors
M.-A. Meier, Y. Kodera, M. Bose, A. I. Chung, M. Hoshiba, Elizabeth S. Cochran, Sarah E. Minson, E. Hauksson, T. Heaton
Using a dense seismic array to determine structure and site effects of the Two Towers earthflow in northern California
We deployed a network of 68 three-component geophones on the slow moving Two
Towers earthflow in northern California. We compute horizontal-to-vertical spectral ratios
(HVSRs) from the ambient seismic field. The HVSRs have two prominent peaks, one near
1.23 Hz and another between 4 and 8 Hz at most stations. The 1.23 Hz resonance is a property of the background noise field and may be due to a v
Authors
Amanda M. Thomas, Zack Spica, Miles Bodmer, William Schulz, Joshua J. Roering
Introduction to this special section: Geothermal energy
Geothermal energy is a global renewable resource that has the potential to provide a significant portion of baseload energy in many regions. In the United States, it has the potential to provide 8.5% of the electric generation capacity by the middle of the century. In general, geothermal systems require heat, permeability, and water to be viable for energy generation. However, with current technol
Authors
Joern Kaven, Dennise Templeton, Arpita P. Bathija
U.S. Geological Survey Earthquake Science Center
The mission of the U.S. Geological Survey (USGS) Earthquake Science Center is to collect a wide range of data on earthquakes, faults, and crustal deformation; conduct research to increase our understanding of earthquake source processes, occurrence, and effects; and synthesize this knowledge into probabilistic seismic hazard assessments, aftershock forecasts, and ground-shaking scenarios for antic
Authors
Stephen H. Hickman
Observations on the May 2019 Joffre Peak landslides, British Columbia
Two catastrophic landslides occurred in quick succession on 13 and 16 May 2019, from the north face of Joffre Peak, Cerise Creek, southern Coast Mountains, British Columbia. With headscarps at 2560 m and 2690 m elevation, both began as rock avalanches, rapidly transforming into debris flows along middle Cerise Creek, and finally into debris floods affecting the fan. Beyond the fan margin, a flood
Authors
Pierre Friele, Tom Millard, Andrew Mitchell, Kate E. Allstadt, Brian Menounos, Marten Geertsema, John J. Clague
Geographic and oceanographic influences on ferromanganese crust composition along a Pacific Ocean meridional transect, 14N to 14S
The major controls on the variability of ferromanganese (FeMn) crust composition have been generally described over the past 40 years; however, most compilation studies lack quantitative statistics and are limited to a small region of several seamounts or compare FeMn crusts from disparate areas of the global oceans. This study provides the first detailed research to address the geographic and ocea
Authors
Kira Mizell, James R. Hein, Phoebe J. Lam, Anthony A.P. Koppers, Hubert Staudigel
Applied lunar science on Artemis III in support of in situ resource utilization
The Artemis Science Goals and Strategy are focused on basic or fundamental science, neglecting the vital field of “applied” geoscience that fits between “pure” science and engineering to provide near-term practical benefits for human activities.
Authors
Laszlo P. Keszthelyi, Kristen A. Bennett, Lisa R. Gaddis, Lillian R. Ostrach, Lauren A. Edgar
Community tools for cartographic and photogrammetric processing of Mars Express HRSC images
In this chapter we describe the software we have developed for photogrammetric processing of images from the Mars Express High Resolution Stereo Camera (MEX HRSC) to produce digital topographic models (DTMs) and orthoimages, as well as testing we have performed. HRSC has returned images, including stereo and color coverage of most of Mars at decameter scales. The instrument team has developed an e
Authors
Randolph L. Kirk, Elpitha Howington-Kraus, Kenneth Edmundson, Bonnie L. Redding, Donna M. Galuszka, Trent M. Hare, K. Gwinner