Today: 3.9 magnitude earthquake near San Ramon, California, United States
Yesterday: 4.0 magnitude earthquake near San Ramon, California, United States
2.8 magnitude earthquake 4 km from San Ramon, California, United States
2025-12-21 02:36:34 UTC
UTC time:
Sunday, December 21, 2025 02:36 AM
Your time:
2025-12-21T02:36:34Z
Magnitude Type:
md
USGS page:
M 2.8 - 5 km SE of San Ramon, CA
USGS status:
Not reviewed by a seismologist
Reports from the public:
43 people
2025-12-21 02:36:34 UTC
2.8 magnitude, 9 km depth
San Ramon, California, United States
San Ramon, California, United States
2.8 magnitude earthquake
Today
2025-12-21 02:36:34 UTC
at 02:36
December 21, 2025 UTC
Location:
Epicenter at 37.75, -121.941
4.2 km from
San Ramon
(2.2 miles)
San Francisco Bay Area, California
Depth: 9 km