Earthquake Hazards
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The USGS monitors and reports on earthquakes, assesses earthquake impacts and hazards, and conducts targeted research on the causes and effects of earthquakes. We undertake these activities as part of the larger National Earthquake Hazards Reduction Program (NEHRP), a four-agency partnership established by Congress.
Latest Earthquakes
Latest earthquakes map and list (past 24 hours, M2.5+) from the ANSS (Advanced National Seismic System). Check out the new interface! (7/27/20)
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Earthquake Notification Service (ENS)
ShakeAlert® Earthquake Early Warning
Subscribe to Earthquake News
Want to know when there is a new earthquake-related announcement or new content on the website? You can now subscribe to the Earthquake Hazards Program News RSS feed.
RSS FeedIntermountain West, U.S., 2020 Earthquakes
Explore this interactive geonarrative to learn about the four 2020 earthquakes in the U.S. Intermountain West. This immersive experience includes maps, photos from the field and links to journal papers, earthquake event pages, data and more.
ExploreNews
Magnitude 8.2 Earthquake in Alaska
A magnitude 8.2 earthquake struck 50 miles south of the Alaska Peninsula on July 28, 2021 at 10:15 pm local time (July 29, 2021 06:15 UTC). Seismic instruments indicate the earthquake originated at a depth of 20 miles (32.2 kilometers).
USGS Participation in the Annual Natural Hazards Research and Applications Workshop
This year's Annual Natural Hazards Research and Applications Workshop, coordinated by the Natural Hazards Center at CU Boulder on July 11 – 14, 2021, is the 46th and will be organized around the theme of The Hazards and Disaster Workforce: Preparing to Meet 21st Century Challenges. Check out these sessions, posters, and research highlights featuring the USGS Risk Community of Practice members...
Magnitude 6.0 Earthquake in California
A magnitude 6.0 (M6.0) earthquake struck Little Antelope Valley, California near the Nevada border on July 8, 2021 at 3:49pm local time (July 8 at 22:49 UTC).
Publications
Coastal Tree-Ring Records for Paleoclimate and Paleoenvironmental Applications in North America
For more than a century, tree-ring research has identified relationships between climatic and ecological conditions and tree growth to describe past environments and constrain future ecosystem vulnerabilities. Tree-ring records are frequently used as environmental proxies that extend knowledge of past climate and ecology on millennial scales. Many...
Tucker, Clay; Pearl, Jessie Kathleen Creep on the Sargent Fault over the past 50 yr from alignment arrays with implications for slip transfer between the Calaveras and San Andreas Faults, California
The 55‐km‐long Sargent fault connects the creeping Calaveras fault with the locked San Andreas fault through the Santa Cruz Mountains west of Gilroy, California. The position of the Sargent fault between these two faults may have implications for slip transfer and strain accumulation between a creeping and locked fault. The detection and...
Mongovin, Daniel; Philibosian, Belle
Streambank erosion and related geomorphic change in Tuolumne Meadows, Yosemite National Park, California
Landscape change in Tuolumne Meadows, Yosemite National Park, California, was characterized using data derived from four lidar surveys: one airborne survey in 2006 and three terrestrial surveys in 2016, 2017, and 2018. These surveys were used to generate a better quantitative understanding of changes associated with fluvial processes along the...
DeLong, Stephen B.; Pickering, Alexandra J.; Kuhn, Timothy