3.7
Earthquake Details: 45 km W of Happy Valley, Alaska, United States
8/19/2026, 7:51:43 PM
A magnitude 3.7 earthquake occurred near 45 km W of Happy Valley, Alaska, United States on 8/19/2026 at 7:51:43 PM. The seismic event was recorded at a depth of 108 km. No tsunami warning was issued.
No Tsunami WarningStatus: reviewedType: earthquake
Regional Seismicity
Technical Details
Depth108 km
Significance214
Latitude60.0290
Longitude-152.5310
Event IDaka2026qkiuau
Magnitude3.7
Updated:8/20/2026, 1:10:03 AM
External Resources
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Time & depth
- Local time
- 8/19/2026, 11:51:43 AM AKDT
- UTC
- 8/19/2026, 7:51:43 PM UTC
108 km · Intermediate-focus
Between 70 and 300 km deep.
Nearby major cities
Nearby event sequence · 12
M3.164 km SE of Denali National Park, Alaska, United StatesBeforeM3.832 km E of Halibut Cove, Alaska, United StatesBeforeM3.051 km NNE of Chase, Alaska, United StatesBeforeM2.955 km W of Anchor Point, Alaska, United StatesBeforeM2.85 km NNW of Diamond Ridge, Alaska, United StatesBeforeM4.541 km SW of Karluk, Alaska, United StatesBeforeM2.941 km SSE of Akhiok, Alaska, United StatesBeforeM2.933 km ESE of Point Possession, Alaska, United StatesBeforeM2.97 km WSW of Point MacKenzie, Alaska, United StatesBeforeM2.857 km WNW of Skwentna, Alaska, United StatesBeforeM3.348 km ESE of Port Alsworth, Alaska, United StatesBeforeM2.960 km NNW of Petersville, Alaska, United StatesAfter
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 20, 2026, 01:10 AM 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.