USGS Earthquake Hazards Program, responsible for monitoring, reporting, and researching earthquakes and earthquake hazards

Search Earthquake Catalog Time Zone. Display event dates and times using this time zone.

Clicking the list icon in the top right corner will load the earthquake list. Clicking the map icon in the top right corner will load the map. Clicking the options icon in the top right corner lets you change which earthquakes are displayed, and many other map and list options.

USGS Earthquake Hazards Program, responsible for monitoring, reporting, and researching earthquakes and earthquake hazards

2025年1月20日 · What makes an earthquake "significant"? Events in this list and shown in red on our real-time earthquake map and list are considered “significant events’, and they are determined by a combination of magnitude, number of Did You Feel It responses, and PAGER alert level.

2 天之前 · Did You Feel It? (DYFI) collects information from people who felt an earthquake and creates maps that show what people experienced and the extent of damage.

This animation shows the simulated ground motion of the Earth’s surface that could occur in the central U.S. region for a magnitude 7.7 strike-slip earthquake on the southern section of the New Madrid seismic zone. The simulation is based on a detailed geologic model of the central U.S. and is intended to show the general character of the ...

Activity: Calculating Wave Velocities. The box labeled "Watch here" is about 66.9 kilometers (45.6 miles) from the earthquake epicenter. Calculate the speed of each type of wave by the following process (answers in table above): Record the precise time when each wave arrives.

The Mineral, Virginia, earthquake occurred at 17:51:3.9 UTC on August 23, 2011, with epicenter at 37.905°N, 77.975°W and focal depth 8 km (Chapman, 2013). It caused structural damage consistent with level VIII of the modified Mercalli intensity scale near the epicenter in

2024年10月27日 · The Earthquake Event Page application supports most recent browsers, view supported browsers. Or, try our Real-time Notifications, Feeds, and Web Services . M 3.6 - off the coast of Oregon