The USGS Earthquake Hazards Program is part of the National Earthquake Hazards Reduction Program (NEHRP), established by Congress in 1977, and the USGS Advanced National Seismic System (ANSS) was established by Congress as a NEHRP facility.
What was the magnitude of the July 6th 2019 earthquake in California?
M7.1 Earthquake in Southern California Get up-to-date information about the July 6th, 2019, 03:19 UTC (July 5th 20:19 locally) Mw 7.1 earthquake in eastern California, southwest of Searles Valley. Also read the USGS News Story on the Magnitude 7.1 Earthquake in Southern California (updated with new info as it is available).
What is the earthquake notification Service (ENS)?
The Earthquake Notification Service (ENS) is a free service that sends you automated notifications to your email or cell phone when earthquakes happen. Tweet Earthquake Dispatch (TED) offers two Twitter accounts. On average, each account will produce about one tweet per day.
How do I Change which earthquakes are displayed on 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. Clicking the about icon in the top right corner loads this page.
Where can I view the latest earthquake data?
View the latest earthquakes on the interactive map above, displaying the magnitude, location, depth and the event time. The information is provided by the USGS Earthquake Hazards Program. The earthquake is a shaking of the Earth’s surface, caused by the displacement of a part of the Earth’s crust and the sudden release of a large amount of energy.
What are the USGS 3-D geologic and seismic velocity models?
The USGS 3-D Geologic and Seismic Velocity Models of the San Francisco Bay region provide a three-dimensional view of the geologic structure and physical properties of the region down to a depth of 45 km (28 miles).
How does the 3-D structure of the Earth affect the earthquakes?
The corner of the model has been cut away to show faults (red lines), basins (yellow), and other geologic rock units (various colors). Previous work by the USGS and others has shown that the 3-D structure of the earth has a significant impact on how strongly an earthquake is felt at different locations and on the duration of the shaking.
