Key facts
- Magnitude
- 3.9 (ml)
- Location
- 10 km N of Lake Pillsbury, CA
- Time
- 5:01 AM PDT, Wednesday, October 28, 2026
- Depth
- 10.6 km
- Estimated shaking
- intensity 3.7 (USGS ShakeMap)
- Tsunami
- No tsunami flag from USGS
What to do
If you feel shaking, Drop, Cover, and Hold On until it stops. Expect aftershocks, which can follow an earthquake of any size.
After shaking stops, check for gas leaks and damage at home. Stay out of damaged buildings.
USGS did not flag a tsunami threat for this earthquake.
Context
USGS data show 77 earthquakes of magnitude 4 or greater within 100 km of this location since 2000. Three of them were magnitude 5 or greater. This puts a magnitude 3.9 shock in the context of an area that has had moderate earthquakes before.
These counts cover only earthquakes recorded by USGS within that 100 km radius since 2000. They do not predict what will happen next.
History here
USGS records 77 earthquakes of magnitude 4 or more within 100 km of this epicenter since 2000, 3 of them magnitude 5 or more.
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Questions
- Was there an earthquake near Lake Pillsbury, California?
- Yes. USGS reports a magnitude 3.9 earthquake 10 km north of Lake Pillsbury, CA, at 5:01 AM PDT on Wednesday, October 28, 2026.
- How deep was the Lake Pillsbury earthquake?
- USGS puts the depth at 10.6 km. Estimated shaking was 3.7.
- Is there a tsunami threat from the Lake Pillsbury earthquake?
- No. USGS did not flag a tsunami threat for this earthquake.
Sources
How this page is made. The Herebeat Hazard Desk builds event pages from official U.S. government data (National Weather Service, USGS, FEMA). The text is written with AI from that data; every number and quote is checked against the official source automatically before publishing, and the page is updated when the agency updates the event. The official source is always the reference. Spotted a mistake? info@herebeat.app. About the Hazard Desk.