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M4.3 · 18 km WSW of Johannesburg, CA · Was That A Quake?
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M
4.3
18 km WSW of Johannesburg, CA
5d ago
Peak Ground Motion
MMI 4.5
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Aftershock Forecast
USGS publishes probabilistic aftershock forecasts for significant events.
View OAF forecast JSON →
Depth
8 km
Time (UTC)
16:40
Date
2026-07-13
Latitude
35.312°
Longitude
-117.815°
Source
USGS
View official report