4.0
Earthquake Details: 85 km SSW of Nikolski, Alaska
Sep 19, 2026, 12:44:03
A magnitude 4.0 earthquake occurred near 85 km SSW of Nikolski, Alaska on Sep 19, 2026 at 12:44:03. The seismic event was recorded at a depth of 40.51 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
View recent seismic activity near this event:
Technical Details
Depth40.51 km
Significance246
Latitude52.2509
Longitude-169.4274
Event IDus7000tikp
Magnitude4.0
Updated:Sep 24, 2026, 21:15:14 UTC
External Resources
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Time & depth
- Local time
- Sep 19, 2026, 12:44:03
- UTC
- Sep 19, 2026, 12:44:03 UTC
40.51 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby event sequence · 12
M4.0166 km SW of Nikolski, AlaskaBeforeM4.086 km SSW of Nikolski, AlaskaBeforeM3.7159 km WSW of Nikolski, AlaskaAfterM4.6102 km WSW of Nikolski, AlaskaAfterM5.0244 km SSE of False Pass, AlaskaAfterM4.7234 km SSE of False Pass, AlaskaAfterM3.6142 km SW of Nikolski, AlaskaAfterM3.9166 km WSW of Nikolski, AlaskaAfterM3.9167 km WSW of Nikolski, AlaskaAfterM3.8151 km S of False Pass, AlaskaAfterM3.7155 km SW of Nikolski, AlaskaAfterM3.8136 km SW of Nikolski, AlaskaAfter
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 24, 2026, 21:15 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.