3.4
Earthquake Details: 33 km W of Nanwalek, Alaska
Sep 23, 2026, 16:38:10
A magnitude 3.4 earthquake occurred near 33 km W of Nanwalek, Alaska on Sep 23, 2026 at 16:38:10. The seismic event was recorded at a depth of 71.8 km. No tsunami warning was issued.
No Tsunami WarningStatus: ReviewedType: Earthquake
Regional Seismicity
Technical Details
Depth71.8 km
Significance178
Latitude59.4020
Longitude-152.5030
Event IDaka2026swtbxe
Magnitude3.4
Updated:Sep 23, 2026, 18:47:38 UTC
External Resources
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Time & depth
- Local time
- Sep 23, 2026, 08:38:10 AKDT
- UTC
- Sep 23, 2026, 16:38:10 UTC
71.8 km · Intermediate-focus
Between 70 and 300 km deep.
Nearby major cities
Nearby event sequence · 12
M3.655 km SE of Chignik, AlaskaBeforeM3.120 km NE of Nikolaevsk, AlaskaBeforeM3.8163 km S of Akhiok, AlaskaBeforeM3.177 km WSW of Akhiok, AlaskaBeforeM3.737 km SW of Karluk, AlaskaBeforeM3.221 km SW of Susitna, AlaskaBeforeM3.227 km ESE of Skwentna, AlaskaBeforeM3.1236 km SE of Chiniak, AlaskaBeforeM3.175 km WSW of Karluk, AlaskaBeforeM3.714 km SSE of Susitna North, AlaskaAfterM3.2216 km SSE of Akhiok, AlaskaAfterM3.3129 km E of Chignik, AlaskaAfter
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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, 18:47 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.