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Earthquake Hazards Program [ More info] Information on earthquake activity, earthquake science, and earthquake hazard reduction with links to news reports, products and services, educational resources for teachers, glossary, and current U.S. earthquake activity map.
Latest earthquakes in the USA - Past 7 days [ More info] Real-time earthquake maps of the conterminous U.S., Alaska, Hawaii, and Puerto Rico displaying magnitude and location of earthquake activity in the past hour, past day, and past week.
Earthquake "Top 10" Lists & Maps [ More info] Lists of largest earthquakes in the world and in the United States, earthquake facts and statistics, deaths from earthquakes, earthquakes by magnitude, and significant earthquakes.
Historical earthquakes: lists and statistics [ More info] Lists and maps of historic earthquakes by geographic area, magnitude, destructiveness, and other characteristics.
Earthquake search [ More info] Search interface allowing searches of earthquake databases by various parameters including date, depth, intensity, area, and magnitude and download data in a variety of formats.
ShakeMap [ More info] ShakeMap sites provide near-real-time maps of ground motion and shaking intensity following significant earthquakes.
Earthquake notification services [ More info] Sign up for USGS real-time earthquake notification services.
Earthquake: Did you feel it? Report it here. [ More info] Place to provide information about ground shaking associated with significant earthquakes. A questionnaire to let us know what you felt following an earthquake in the United States or in other countries.
FAQs - National Seismic Hazard Maps [ More info] Provides detailed technical information on earthquake hazards in the form of frequently asked questions. Designed for the technical audience, including building and safety planners.
Earthquake hazard maps [ More info] National seismic hazards maps, global seismic hazards map, predictive intensity maps, shaking hazards maps and probabilities for California, and a variety of fact sheets on earthquakes.
Maps of recent earthquake activity in California-Nevada [ More info] Near-real-time maps of location, ground motion, and shaking intensity of earthquakes in California and Nevada for the past hour, past day, and past week and links to other earthquake information.
United States National Strong-Motion Project (earthquakes) [ More info] National Strong-Motion Program home page with links to program news, recent events, and datasets of digitized accelerograms downloadable as PC (*.zip) and Unix (*.tar.z) files, data processing, stations, research, publications, and personnel.
Earthquake Hazards 101 [ More info] Provides links to explanatory materials for the layperson, including information on concepts behind earthquake maps, the use of probability, what the maps mean, how they are made, and answers to frequently asked questions.
Earthquake Hazards Program - Central and Eastern U.S. [ More info] Information on earthquakes in central and eastern United States with links to earthquake monitoring, published products, recent earthquake information, discussion group, and current projects.
Earthquake Hazards Program external research support [ More info] Abstracts, program announcements and descriptions of projects funded by the external research program.
Earthquakes pose a serious hazard in Afghanistan [ More info] Structural features in eastern Afghanistan accompany seismicity data showing this area is subject to considerable risk of earthquakes.
Advanced National Seismic System: Products and services [ More info] Maps, data, and services provided to help people understand earthquakes that have occurred.
Earthquake information by topic [ More info] Information on earthquakes by topic including faults, tsunami, seismic waves, and plate tectonics.
Earthquake science explained--a series of ten short articles for students, teachers, and families [ More info] Collects a series of short articles on earthquake science and related topics for students, teachers, and parents originally published as weekly features in The San Francisco Chronicle.
Earthquakes [ More info] Online booklet on earthquake history, earthquake occurrences, measuring earthquakes, causes, relationship of volcanoes and earthquakes and earthquake prediction.
Earthquakes in the central United States, 1699-2010 [ More info] Poster includes GIS data for earthquake locations in this seismically active area.
Earthquakes: Frequently Asked Questions [ More info] Answers to a wide variety of questions (FAQs) about earthquakes, such as dictionary of terms, earthquake activity and probabilities, common myths, faults, plate tectonics, and earthquake measurement techniques.
General Earthquake Observation System (GEOS) [ More info] Earthquake and aftershock data collected by the USGS General Earthquake Observation System project in Menlo Park, California.
Joshua Tree National Park geology: on shaky ground [ More info] Description of earthquake that was felt in Joshua Tree region (1999) and links to earthquake summary, shaded relief map, aerial photos of the rupture zone, shaking intensity maps, damage reports, and seismograph network map.
National Earthquake Information Center [ More info] Information on world earthquake activity with links to facts and lists on large earthquakes, earthquake e-mail notification, hazards and preparedness, educational links, news and highlights and other seismic information.
Progress toward a safer future since the 1989 Loma Prieta earthquake [ More info] Summarizes what we have learned since this serious earthquake and how we have improved our preparedness for events such as this.
Recent earthquakes in Hawaii [ More info] Interactive maps of earthquakes of last 2 hours, last 2 days, and last 2 weeks in Hawaii.
Severity of an earthquake [ More info] Description of intensity and magnitude as indicators of the size of an earthquake and the levels of severity measured on the Richter Magnitude Scale and the Modified Mercalli Intensity Scale.
The 1964 Great Alaska Earthquake and tsunamis--a modern perspective and enduring legacies [ More info] Summarizes what we learned about this historic earthquake and how our ability to monitor and respond to events of this type have changed, including our awareness of tsunami effects.
The Hayward fault - Is it due for a repeat of the powerful 1868 earthquake? [ More info] Preparing for earthquakes along this important fault requires studying the history of its movement and its geology, as well as understanding how society has built the area around it.
A volcano rekindled; the renewed eruption of Mount St. Helens, 2004-2006 [ More info]
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