California, United States
Earthquakes Near San Ramon
ShareUSGS recorded 44 earthquakes within 50 km of San Ramon in the last 30 days and 1,308 in the last year, counting everything of magnitude 1.0 and above. The strongest in that year measured M 4.3.
- Depth
- When (UTC)
- Local time
- Coordinates
Recent earthquakes within 50 km of San Ramon
Last 30 days, newest first as of 2026-08-10 17:03 UTC
| Magnitude | Location | Depth | When (UTC) |
|---|---|---|---|
| M 1.2 | 10 km SSE of Sunol, CA | 2.8 km deep | 2026-08-10 14:56 UTC |
| M 1.3 | 0 km SW of Blackhawk, CA | 8.7 km deep | 2026-08-09 05:30 UTC |
| M 1.1 | 1 km SSW of Blackhawk, CA | 1.2 km deep | 2026-08-09 05:28 UTC |
| M 2.1 | 2 km SSW of Alamo, CA | 12.8 km deep | 2026-08-08 22:18 UTC |
| M 1.8 | 2 km SW of Alamo, CA | 12.1 km deep | 2026-08-08 11:49 UTC |
| M 1.6 | 4 km NE of Fremont, CA | 6.2 km deep | 2026-08-07 23:34 UTC |
| M 1.3 | 13 km ENE of Milpitas, CA | 9.5 km deep | 2026-08-07 03:35 UTC |
| M 1.3 | 7 km ESE of Santa Venetia, CA | 1.2 km deep | 2026-08-05 18:44 UTC |
| M 1.5 | 3 km W of Concord, CA | 15.0 km deep | 2026-08-04 21:46 UTC |
| M 1.2 | 3 km ESE of Pacifica, CA | 6.9 km deep | 2026-08-04 20:14 UTC |
| M 0.8 | 3 km N of Piedmont, CA | 8.6 km deep | 2026-08-04 04:17 UTC |
| M 1.0 | 1 km W of Alamo, CA | 7.5 km deep | 2026-08-04 00:28 UTC |
| M 1.3 | 2 km SSE of Pacheco, CA | 9.2 km deep | 2026-08-03 12:13 UTC |
| M 1.1 | 6 km ESE of Moraga, CA | 4.7 km deep | 2026-08-02 11:44 UTC |
| M 1.6 | 0 km SSE of Albany, CA | 7.1 km deep | 2026-08-01 20:42 UTC |
| M 2.2 | 8 km NE of Alum Rock, CA | 9.0 km deep | 2026-07-28 22:39 UTC |
| M 1.5 | 7 km E of Santa Venetia, CA | at the surface | 2026-07-28 18:34 UTC |
| M 1.1 | 0 km SE of East Richmond Heights, CA | 7.3 km deep | 2026-07-28 09:26 UTC |
| M 0.9 | 11 km NE of Milpitas, CA | 5.0 km deep | 2026-07-27 20:32 UTC |
| M 1.4 | 5 km ENE of Vallejo, CA | at the surface | 2026-07-27 19:17 UTC |
| M 0.9 | 3 km SE of San Leandro, CA | 8.7 km deep | 2026-07-27 14:01 UTC |
| M 1.2 | 4 km E of Fremont, CA | 5.5 km deep | 2026-07-27 10:21 UTC |
| M 1.2 | 14 km SSW of Tracy, CA | 11.7 km deep | 2026-07-27 00:33 UTC |
| M 1.3 | 13 km SSW of Tracy, CA | 13.1 km deep | 2026-07-26 23:15 UTC |
| M 1.2 | 17 km SSW of Tracy, CA | 7.6 km deep | 2026-07-26 22:21 UTC |
| M 1.9 | 2 km SE of Oakland, CA | 11.5 km deep | 2026-07-26 20:55 UTC |
| M 1.0 | 4 km SW of Colma, CA | 8.2 km deep | 2026-07-26 18:43 UTC |
| M 1.0 | 5 km NNE of Castro Valley, CA | 7.7 km deep | 2026-07-26 15:09 UTC |
| M 1.1 | 9 km WSW of Brentwood, CA | 2.8 km deep | 2026-07-26 12:16 UTC |
| M 0.9 | 8 km E of Alum Rock, CA | 5.7 km deep | 2026-07-26 10:13 UTC |
| M 0.6 | 4 km SE of Pacifica, CA | 7.0 km deep | 2026-07-25 13:14 UTC |
| M 1.0 | 3 km ENE of Fremont, CA | 5.1 km deep | 2026-07-24 20:50 UTC |
| M 1.0 | 2 km ESE of Pacifica, CA | 8.1 km deep | 2026-07-24 12:50 UTC |
| M 1.1 | 9 km ENE of Milpitas, CA | 4.7 km deep | 2026-07-24 09:30 UTC |
| M 2.0 | 2 km ENE of Berkeley, CA | 8.8 km deep | 2026-07-23 21:20 UTC |
| M 0.8 | 20 km NE of Alum Rock, CA | 10.0 km deep | 2026-07-23 15:17 UTC |
| M 2.6 | 2 km NNE of San Leandro, CA | 4.3 km deep | 2026-07-23 00:52 UTC |
| M 1.4 | 2 km ESE of Pacifica, CA | 8.5 km deep | 2026-07-21 23:02 UTC |
| M 1.4 | 8 km S of Byron, CA | 14.4 km deep | 2026-07-21 10:36 UTC |
| M 0.9 | 1 km ESE of San Ramon, CA | 9.8 km deep | 2026-07-21 01:58 UTC |
The largest on record within 50 km of San Ramon
Since 1900, when the instrumental record becomes usable. The largest is M 5.8 at The 1980 Livermore, California Earthquake on 1980-01-24: moderate: can damage poorly built structures.
Largest since 1900 USGS
| Magnitude | Location | Date | Depth |
|---|---|---|---|
| M 5.8 | The 1980 Livermore, California Earthquake | 1980-01-24 | 14.5 km deep |
| M 5.7 | 15 km NE of East Foothills, California | 1986-03-31 | 8.5 km deep |
| M 5.5 | 6 km NNE of East Foothills, California | 2007-10-31 | 9.7 km deep |
| M 5.4 | 9 km NE of Livermore, California | 1980-01-27 | 14.2 km deep |
| M 5.3 | The 1957 San Francisco, California Earthquake | 1957-03-22 | Not recorded |
| M 5.3 | 6 km E of East Foothills, California | 1988-06-13 | 9.1 km deep |
| M 5.1 | 11 km E of Blackhawk, California | 1980-01-24 | 6.5 km deep |
| M 4.9 | 1 km WNW of Antioch, California | 1965-09-10 | Not recorded |
| M 4.8 | 11 km E of Blackhawk, California | 1980-01-24 | 3.7 km deep |
| M 4.6 | 10 km SW of Brentwood, California | 1980-01-25 | 9.3 km deep |
How these numbers were counted
Counts include every earthquake of magnitude 1.0 and above that USGS located within 50 km of San Ramon. The search is a circle of 50 km around the centre of San Ramon, so everything listed is genuinely within that distance. Full method, including why counts from different places are not comparable.
Source: USGS Earthquake Hazards Program (FDSN event service). Retrieved 2026-08-10. Public domain.