4.5
Earthquake Details: 41 km SW of Karluk, Alaska, United States
8/17/2026, 8:35:10 PM
A magnitude 4.5 earthquake occurred near 41 km SW of Karluk, Alaska, United States on 8/17/2026 at 8:35:10 PM. The seismic event was recorded at a depth of 57.9 km. No tsunami warning was issued.
No Tsunami WarningStatus: reviewedType: earthquake
Regional Seismicity
Technical Details
Depth57.9 km
Significance313
Latitude57.2790
Longitude-154.8940
Event IDaka2026qgsene
Magnitude4.5
Updated:8/17/2026, 8:55:10 PM
External Resources
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Time & depth
- Local time
- 8/17/2026, 12:35:10 PM AKDT
- UTC
- 8/17/2026, 8:35:10 PM UTC
57.9 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby major cities
Nearby event sequence · 12
M3.029 km SW of Hope, Alaska, United StatesBeforeM2.84 km SE of Port Lions, Alaska, United StatesBeforeM3.3119 km SSE of Sand Point, Alaska, United StatesBeforeM2.8244 km ESE of Chiniak, Alaska, United StatesBeforeM3.423 km E of Point Possession, Alaska, United StatesBeforeM3.0208 km SE of Chiniak, Alaska, United StatesBeforeM3.554 km SE of Perryville, Alaska, United StatesBeforeM3.176 km WSW of Karluk, Alaska, United StatesBeforeM3.14 km WSW of Point Possession, Alaska, United StatesBeforeM3.832 km E of Halibut Cove, Alaska, United StatesBeforeM2.955 km W of Anchor Point, Alaska, United StatesBeforeM2.85 km NNW of Diamond Ridge, Alaska, United StatesBefore
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: Aug 17, 2026, 08:55 PM 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.