SOURCE-BACKED EVENT · EARTHQUAKE
M3.9 107 km SSE of Adak, Alaska
Observed facts from USGS Earthquake Hazards Program. PlanetVexa-derived context is labeled separately.
MEASUREMENTM3.9
Source: USGS Earthquake Hazards ProgramSource updated Oct 17, 2026 · 04:19 UTC
WhenOct 17, 2026 · 03:33:59 UTC
Primary valueM3.9
Position50.952, -176.173
Additional reading11.0 km depth
WHAT THE SOURCE REPORTS
M3.9 107 km SSE of Adak, Alaska
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.