4.2
Earthquake Details: Rat Islands, Aleutian Islands, Alaska
Oct 19, 2026, 16:27:45
- Depth
- 52.17 km
- Felt reports
- No data
Source: USGSUpdated: Oct 19, 2026, 05:32 PM UTC
A magnitude 4.2 earthquake occurred on Oct 19, 2026 at 16:27:45. Epicenter: Rat Islands, Aleutian Islands, Alaska. Reported depth: 52.17 km.
Tsunami information
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Time & depth
- Local time
- Oct 19, 2026, 07:27:45 HADT
- UTC
- Oct 19, 2026, 16:27:45 UTC
52.17 km · Shallow-focus
Less than 70 km deep. Shaking is often stronger near the epicentre.
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Nearby earthquakes · 12
M3.9107 km SSE of Adak, AlaskaBeforeM4.1Rat Islands, Aleutian Islands, AlaskaBeforeM2.571 km SE of Adak, AlaskaBeforeM2.4123 km W of Adak, AlaskaBeforeM2.466 km SE of Adak, AlaskaBeforeM2.5128 km W of Adak, AlaskaBeforeM2.379 km SSE of Adak, AlaskaBeforeM2.4125 km WSW of Adak, AlaskaBeforeM2.4Andreanof Islands, Aleutian IsBeforeM2.4Andreanof Islands, Aleutian IsBeforeM3.053 km SW of Adak, AlaskaBeforeM3.263 km SW of Adak, AlaskaAfter
Agency measurements
Agencies may use different observations and magnitude scales, and initial estimates can change.
- USGSM 4.2
us6000u3de
- Depth:
- 52.17 km
- Time:
- Updated:
- Oct 19, 2026, 05:32 PM UTC
Technical Details
Depth52.17 km
Significance271
Latitude51.5183
Longitude178.3686
Event IDus6000u3de
Magnitude4.2
Updated:Oct 19, 2026, 17:32:04 UTC
Regional Seismicity
View recent seismic activity near this event:
External Resources
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: Oct 19, 2026, 17:32 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.