M3.0 earthquake — 17 km WSW of Johannesburg, CA
An magnitude 3.0 earthquake occurred 17 km WSW of Johannesburg, CA on Sep 23, 2026 at 20:44 UTC. The epicenter was at a depth of 7 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 | M3.0 |
|---|---|
| Depth | 7.2 km |
| Coordinates | 35.310, -117.805 |
| Time | Sep 23, 20:44 UTC |
| Location | 17 km WSW of Johannesburg, CA |
| USGS event ID | ci41337999 |
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 |
|---|---|---|---|
| M3.2 | 0 km | Sep 23, 15:01 UTC | 17 km WSW of Johannesburg, CA |
| M2.6 | 0 km | Sep 24, 03:11 UTC | 17 km WSW of Johannesburg, CA |
| M2.5 | 0 km | Sep 23, 19:59 UTC | 17 km WSW of Johannesburg, CA |
| M2.5 | 0 km | Sep 23, 03:59 UTC | 17 km WSW of Johannesburg, CA |
| M2.7 | 199 km | Sep 24, 15:40 UTC | 1 km S of Orange Cove, CA |
| M2.6 | 215 km | Sep 23, 10:52 UTC | 9 km WNW of Anza, CA |
Earthquake activity in this area
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Source: USGS earthquake catalog. Automated readings may be revised. Not for emergency use.