SOURCE-BACKED EVENT · EARTHQUAKE
M1 2 km W of Hercules, CA
Observed facts from USGS Earthquake Hazards Program. PlanetVexa-derived context is labeled separately.
MEASUREMENTM1
Source: USGS Earthquake Hazards ProgramSource updated Aug 28, 2026 · 13:37 UTC
WhenAug 28, 2026 · 13:05:24 UTC
Primary valueM1
Position38.018, -122.307
Additional reading1.9 km depth
WHAT THE SOURCE REPORTS
M1 2 km W of Hercules, CA
This record preserves the official measurement, timestamp, status and attribution. The source may revise its values while this PlanetVexa URL remains stable.
PLANETVEXA-DERIVED CONTEXT
No warning or impact is inferred from this observation. Consult the responsible public authority for warnings and protective action.