Minor Earthquake ● Closed
M4.8 Earthquake — Unimak Island Region, Alaska
Loading live data… · Marker positions are approximate; severity is labelled in each popup. Sources: USGS, GDACS, NASA EONET, NOAA/NWS, EMSC.
Magnitude 4.8 earthquake in Unimak Island Region, Alaska, reported by EMSC.
Measurements
| Magnitude | M4.8 |
|---|---|
| Depth | 54.2 km |
| Coordinates | 53.7154, -163.6117 |
| Region | Unimak Island Region, Alaska |
Measured by
Earthquake data courtesy of EMSC
This is a scientific measurement of an event that has already happened. It is not a warning, and it does not tell you what to do.
Not rated by source. European-Mediterranean Seismological Centre does not publish a severity for this; the level shown is our own classification.
View original reportThis event as JSON · API and licence
Source updated 17 days ago (Oct 2, 2026 06:29 UTC) · we last heard from European-Mediterranean Seismological Centre 51 seconds ago
On a slow connection? Low-bandwidth version — no map, no scripts, under 14 KB.
What has changed
- Magnitude revised from M5.0 to M4.8 — Oct 1, 15:10 UTC by European-Mediterranean Seismological Centre
- Severity lowered from Moderate to Minor — Oct 1, 15:10 UTC by European-Mediterranean Seismological Centre
Figures published in the first minutes of an event are preliminary. A change here is the agency refining its own estimate, not a correction to this page.
General safety information
No authority has issued instructions for this event. The guidance below is general background reading, not a response to it.
Drop, Cover, and Hold On — what to do before, during and after an earthquake, plus emergency kit and family plan checklists.
Open Earthquake Safety Guide →Nearby & related events
Disclaimer: figures are automatic feeds from the named agencies and may be revised. Do not use this page for life-safety decisions — follow official local emergency services.