M2.6 earthquake — 12 km SW of Ridgemark, CA
An magnitude 2.6 earthquake occurred 12 km SW of Ridgemark, CA on Oct 28, 2026 at 23:29 UTC. The epicenter was at a depth of 9 km — a shallow earthquake. Shallow quakes concentrate their energy near the surface, so they tend to produce stronger shaking close to the epicenter.
Event data
| Magnitude | M2.6 |
|---|---|
| Depth | 9.1 km |
| Coordinates | 36.745, -121.469 |
| Time | Oct 28, 23:29 UTC |
| Location | 12 km SW of Ridgemark, CA |
| USGS event ID | nc75459162 |
What this magnitude typically means
Very small earthquakes are usually only detected by instruments and are rarely felt. They are a normal part of background seismic activity. Tremor does not compute a single local shaking figure here, because how strong a quake feels at any address depends on distance, depth and local geology — open the interactive globe to explore the ShakeMap and estimated intensity.
Nearby recent earthquakes
| Magnitude | Distance | Time (UTC) | Location |
|---|---|---|---|
| M2.5 | 18 km | Oct 26, 13:10 UTC | 4 km SE of Aromas, CA |
| M3.0 | 18 km | Oct 22, 21:58 UTC | 15 km S of Tres Pinos, CA |
| M3.1 | 52 km | Oct 22, 04:18 UTC | 23 km WSW of Gustine, CA |
| M2.6 | 66 km | Oct 27, 19:38 UTC | 14 km E of Seven Trees, CA |
| M2.9 | 246 km | Oct 24, 10:54 UTC | 19 km SW of Toms Place, CA |
| M2.5 | 247 km | Oct 24, 18:42 UTC | 17 km SW of Toms Place, CA |
Earthquake activity in this area
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Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.