2.5
Earthquake Details: 86 km ESE of Atka, Alaska, United States
8/18/2026, 2:19:38 AM
A magnitude 2.5 earthquake occurred near 86 km ESE of Atka, Alaska, United States on 8/18/2026 at 2:19:38 AM. The seismic event was recorded at a depth of 61.2 km. No tsunami warning was issued.
No Tsunami WarningStatus: reviewedType: earthquake
Technical Details
Depth61.2 km
Significance96
Latitude51.8870
Longitude-173.0390
Event IDaka2026qhdrkl
Magnitude2.5
Updated:8/18/2026, 8:27:50 AM
External Resources
View on USGS Official SiteLoading map...
Time & depth
- Local time
- 8/18/2026, 2:19:38 AM
- UTC
- 8/18/2026, 2:19:38 AM UTC
61.2 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
Nearby event sequence · 12
M3.0240 km WSW of Adak, Alaska, United StatesBeforeM3.0163 km SW of Nikolski, Alaska, United StatesBeforeM3.177 km W of Nikolski, Alaska, United StatesBeforeM3.457 km SSE of Adak, Alaska, United StatesBeforeM3.046 km S of Atka, Alaska, United StatesBeforeM3.2100 km S of Atka, Alaska, United StatesAfterM3.487 km SSW of Unalaska, Alaska, United StatesAfterM3.491 km SSW of Unalaska, Alaska, United StatesAfterM3.0188 km SSE of Atka, Alaska, United StatesAfterM3.1119 km WSW of Adak, Alaska, United StatesAfterM4.1138 km SW of Adak, Alaska, United StatesAfterM3.1176 km WSW of Nikolski, 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 18, 2026, 08:27 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.