San Ramon Hit by 4.3 Earthquake Following 3.9 and Tremor Swarm, USGS Reports
On the morning of February 2, 2026, a notable seismic event occurred near San Ramon, California. A 4.3 magnitude earthquake struck at 7:01 a.m., following a smaller 3.9 quake that took place at 6:27 a.m. This series of tremors included at least five additional smaller quakes before 7 a.m., according to reports from the U.S. Geological Survey (USGS).
Details of the Quakes
The 4.3 quake was registered at a depth of approximately 9.4 kilometers. This is the latest in a series of seismic activities affecting San Ramon, a city that has experienced multiple tremor sequences over the preceding months.
Seismic Activity Summary
- 4.3 Magnitude – Struck at 7:01 a.m.
- 3.9 Magnitude – Occurred at 6:27 a.m.
- Additional Tremors – At least five smaller quakes recorded before 7 a.m.
- Depth – The main quake was 9.4 km deep.
These incidents have drawn attention as they underline the seismic volatility of the San Francisco Bay Area. Residents are encouraged to stay informed about earthquake preparedness and to monitor updates from reliable sources.
As the situation develops, Filmogaz.com will provide ongoing coverage and detailed reports on this event and its implications for the region.