Earthquakes Near San Luis Obispo Today
Live answer from USGS data — every earthquake within 150 km (93 mi) of San Luis Obispo, California.
Checking live USGS data near San Luis Obispo…
Why San Luis Obispo gets earthquakes
San Luis Obispo's biggest recent shake came from the 2003 San Simeon earthquake (M6.5), centered in the coastal mountains to the northwest, which killed two people in Paso Robles and damaged buildings across the county. The offshore Hosgri fault — which passes near the Diablo Canyon nuclear plant — is the region's most scrutinized structure.
Other local sources include the Los Osos fault, the Oceanic–West Huasna system, and the Rinconada fault inland. The San Andreas itself lies about 40 miles northeast across the Carrizo Plain, where its 1857 rupture left scarps still visible today.
San Luis Obispo earthquake FAQ
▸Did San Luis Obispo just have an earthquake?
The live panel at the top of this page checks the USGS catalog for every earthquake within 150 km of San Luis Obispo and answers in one line. Keep in mind USGS data lags real shaking by roughly 2–3 minutes in California and up to ~8 minutes in other regions — if you felt something seconds ago, refresh shortly.
▸What faults cause earthquakes near San Luis Obispo?
Key sources near San Luis Obispo are the offshore Hosgri fault zone (near Diablo Canyon), the Los Osos and Rinconada faults, and the source area of the 2003 San Simeon M6.5 quake. The San Andreas crosses the Carrizo Plain about 40 miles inland.
▸What magnitude earthquake can you feel in San Luis Obispo, CA?
Close to the epicenter, people typically begin to feel earthquakes around magnitude 2.5–3.0. An M4+ is felt across a wide area and rattles objects; M5+ can damage buildings near the epicenter. Shallow quakes feel stronger than deep ones of the same magnitude, and soft soils amplify shaking.
▸What should I do if I feel an earthquake in San Luis Obispo?
Drop, Cover, and Hold On — get low, take cover under sturdy furniture, and hold on until shaking stops. Afterward, check for hazards like gas leaks, and expect possible aftershocks. If you're in a coastal area and the shaking is strong or lasts a long time, move inland or to high ground. Official guidance: ready.gov/earthquakes.