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Earthquakes
Ground shaking caused by the sudden release of accumulated strain by an abrupt shift of rock along a fracture in the earth or by volcanic or magmatic activity, or other sudden stress changes in the earth.
Subtopics:
Earthquake occurrences (42 items)

Earthquake hazards (52 items)
Related topics:


Results 1 - 10 of 96 listed by similarity [list alphabetically]
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.
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.
Earthquake information by topic [More info]
Information on earthquakes by topic including faults, tsunami, seismic waves, and plate tectonics.
Earthquake notification services [More info]
Sign up for USGS real-time earthquake notification services.
Earthquake preparedness information [More info]
Links to web sites, publications, and fact sheets on earthquake preparedness.
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.
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.
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.
Earthquakes for kids [More info]
Links to various earthquake projects, facts, science fair ideas, earthquake science, becoming an earthquake scientist, image glossary, earthquake facts, and puzzles and games for children.
Earthquake glossary [More info]
Dictionary of terms associated with earthquakes with simple definitions and photographs especially suited for students.
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