Latest Earthquakes
Advanced National Seismic System
Latest earthquakes map and list (past 24 hours, M2.5+). Tap/click on "gear icon" for options and settings.
FAQ - Frequently Asked Questions
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Significant Earthquakes, Past 30 Days
Significant Earthquakes Archive
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. The USGS and its partners monitor and report earthquakes, assess earthquake impacts and hazards, and perform research into the causes and effects of earthquakes.
Highlights
How to Explain California’s Recent Earthquake Hiatus?
There have been no major ground rupturing earthquakes along California’s San Andreas, San Jacinto and Hayward faults in the past 100 years. At the 2019 SSA Annual Meeting, researchers discussed why this “hiatus” might exist, and what we might expect for California earthquakes over the next century. (SSA News Release)
Snowmelt Caused 2017 Seismic Swarm Near California’s Long Valley Caldera
A spring surge of meltwater, seeping through vertically tilted layers of rock, caused a seismic swarm near California’s Long Valley Caldera in 2017, according to research presented at the 2019 SSA Annual Meeting. (SSA News Release)
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