3.0
Earthquake Details: 17 km WSW of Johannesburg, California
Sep 23, 2026, 20:44:36
A magnitude 3.0 earthquake occurred near 17 km WSW of Johannesburg, California on Sep 23, 2026 at 20:44:36. The seismic event was recorded at a depth of 7.23 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
Technical Details
Depth7.23 km
Significance135
Latitude35.3098
Longitude-117.8055
Event IDci41337999
Magnitude3.0
Updated:Sep 23, 2026, 21:01:13 UTC
External Resources
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Time & depth
- Local time
- Sep 23, 2026, 13:44:36 PDT
- UTC
- Sep 23, 2026, 20:44:36 UTC
7.23 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby major cities
Nearby event sequence · 12
M3.1Baja California, MéxicoBeforeM2.823 km NE of Hawthorne, NevadaBeforeM3.4Offshore Baja California, MéxicoBeforeM3.2Baja California, MéxicoBeforeM2.69 km WNW of Anza, CaliforniaBeforeM3.217 km WSW of Johannesburg, CaliforniaBeforeM2.725 km SW of Toms Place, CaliforniaBeforeM3.3Baja California, MéxicoBeforeM2.617 km WSW of Johannesburg, CaliforniaAfterM2.71 km S of Orange Cove, CaliforniaAfterM3.1Baja California, MéxicoAfterM3.3Baja California, MéxicoAfter
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Earthquake information is automatically aggregated from the official seismic agencies listed below. Preliminary measurements can change as agencies review an event; use local emergency authorities for safety decisions. Latest successful data update: Sep 23, 2026, 21:01 UTC.
Data sources:
- USGS — Credit: U.S. Geological Survey.
- EMSC — Credit: EMSC/CSEM. Event catalogue data are provided under CC BY 4.0. CC BY 4.0
- JMA — Source: Japan Meteorological Agency (JMA).
- Geoscience Australia — Based on Australian Earthquakes data by Geoscience Australia. © Commonwealth of Australia. Licensed under CC BY 4.0; the section 5 disclaimer applies. CC BY 4.0
- GeoNet — We acknowledge the New Zealand GeoNet programme and its sponsors NHC, Earth Sciences NZ, LINZ, NEMA and MBIE for providing earthquake data.