Publications
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Seismicity of the Earth 1900-2010, Aleutian arc and vicinity
This map shows details of the Aleutian arc not visible in an earlier publication. The Aleutian arc extends about 3,000 km from the Gulf of Alaska to the Kamchatka Peninsula. It marks the region where the Pacific plate subducts into the mantle beneath the North America plate. This subduction is responsible for the generation of the Aleutian Islands and the deep offshore Aleutian Trench. Relative to
Authors
Harley M. Benz, Matthew Herman, Arthur C. Tarr, Gavin P. Hayes, Kevin P. Furlong, Antonio Villaseñor, Richard L. Dart, Susan Rhea
Proceedings of the 25th Himalaya-Karakoram-Tibet Workshop
For a quarter of a century the Himalayan-Karakoram-Tibet (HKT) Workshop has provided scientists studying the India-Asia collision system a wonderful opportunity for workshop-style discussion with colleagues working in this region. In 2010, HKT returns to North America for the first time since 1996. The 25th international workshop is held from June 7 to10 at San Francisco State University, Californ
Authors
Mary L. Leech, Simon L. Klemperer, Walter D. Mooney
Locations and magnitudes of historical earthquakes in the Sierra of Ecuador (1587–1996)
The whole territory of Ecuador is exposed to seismic hazard. Great earthquakes can occur in the subduction zone (e.g. Esmeraldas, 1906, Mw8.8), whereas lower magnitude but shallower and potentially more destructive earthquakes can occur in the highlands. This study focuses on the historical crustal earthquakes of the Andean Cordillera. Several large cities are located in the Interandean Valley, am
Authors
Celine Beauval, Hugo Yepes, William H. Bakun, Jose Egred, Alexandra Alvarado, Juan-Carlos Singaucho
Periodic, chaotic, and doubled earthquake recurrence intervals on the deep San Andreas Fault
Earthquake recurrence histories may provide clues to the timing of future events, but long intervals between large events obscure full recurrence variability. In contrast, small earthquakes occur frequently, and recurrence intervals are quantifiable on a much shorter time scale. In this work, I examine an 8.5-year sequence of more than 900 recurring low-frequency earthquake bursts composing tremor
Authors
David R. Shelly
A magnitude 7.1 earthquake in the Tacoma Fault Zone— A plausible scenario for the southern Puget Sound region, Washington
The U.S. Geological Survey and cooperating scientists have recently assessed the effects of a magnitude 7.1 earthquake on the Tacoma Fault Zone in Pierce County, Washington. A quake of comparable magnitude struck the southern Puget Sound region about 1,100 years ago, and similar earthquakes are almost certain to occur in the future. The region is now home to hundreds of thousands of people, who wo
Authors
Joan Gomberg, Brian Sherrod, Craig Weaver, Art Frankel
Seismicity of the Earth 1900–2010: Caribbean plate and vicinity
Extensive diversity of tectonic regimes characterizes the perimeter of the Caribbean plate, involving no fewer than four major adjacent plates (North America, South America, Nazca, and Cocos). Inclined zones of deep earthquakes (Wadati-Benioff zones), deep ocean trenches, and arcs of volcanoes clearly indicate subduction of oceanic lithosphere along the Central American and Atlantic Ocean margins
Authors
Harley M. Benz, Arthur C. Tarr, Gavin P. Hayes, Antonio H. Villaseñor, Kevin P. Furlong, Richard L. Dart, Susan Rhea
Earthquakes in South Carolina and Vicinity 1698-2009
This map summarizes more than 300 years of South Carolina earthquake history. It is one in a series of three similar State earthquake history maps. The current map and the previous two for Virginia and Ohio are accessible at http://pubs.usgs.gov/of/2006/1017/ and http://pubs.usgs.gov/of/2008/1221/. All three State earthquake maps were collaborative efforts between the U.S. Geological Survey and re
Authors
Richard L. Dart, Pradeep Talwani, Donald Stevenson
Tsunami Preparedness in California (videos)
Tsunamis are a constant threat to the coasts of our world. Although tsunamis are infrequent along the West coast of the United States, it is possible and necessary to prepare for potential tsunami hazards to minimize loss of life and property. Community awareness programs are important, as they strive to create an informed society by providing education and training.
These videos about tsunami
Authors
Kurt Loeffler, Justine Gesell
Tsunami Preparedness Along the U.S. West Coast (video)
Tsunamis are a constant threat to the coasts of our world. Although tsunamis are infrequent along the West coast of the United States, it is possible and necessary to prepare for potential tsunami hazards to minimize loss of life and property. Community awareness programs are important, as they strive to create an informed society by providing education and training.
This video about tsunami p
Authors
Kurt Loeffler, Justine Gesell
Documentation for initial seismic hazard maps for Haiti
In response to the urgent need for earthquake-hazard information after the tragic disaster caused by the moment magnitude (M) 7.0 January 12, 2010, earthquake, we have constructed initial probabilistic seismic hazard maps for Haiti. These maps are based on the current information we have on fault slip rates and historical and instrumental seismicity. These initial maps will be revised and improved
Authors
Arthur Frankel, Stephen Harmsen, Charles Mueller, Eric Calais, Jennifer Haase
An integrated perspective of the continuum between earthquakes and slow-slip phenomena
The discovery of slow-slip phenomena has revolutionized our understanding of how faults accommodate relative plate motions. Faults were previously thought to relieve stress either through continuous aseismic sliding, or as earthquakes resulting from instantaneous failure of locked faults. In contrast, slow-slip events proceed so slowly that slip is limited and only low-frequency (or no) seismic wa
Authors
Zhigang Peng, Joan Gomberg
The MW 7.0 Haiti Earthquake of January 12, 2010: USGS/EERI Advance Reconnaissance Team Report
Executive Summary
A field reconnaissance in Haiti by a five-member team with expertise in seismology and earthquake engineering has revealed a number of factors that led to catastrophic losses of life and property during the January 12, 2010, Mw 7.0 earthquake. The field study was conducted from January 26 to February 3, 2010, and included investigations in Port-au-Prince and the heavily damag
Authors
Marc O. Eberhard, Steven Baldridge, Justin Marshall, Walter Mooney, Glenn J. Rix