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Significant earthquake

This summarises a recorded earthquake only; it is not a warning or a prediction. Follow AFAD and the competent authorities for official statements and guidance.

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3.0

7 km W of Dutch Harbor, Alaska

30 October 2026, 22:53:02 (+03) 2026-10-30 19:53:02 UTC

2 sources: EMSC, USGS ml
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Magnitude
3.0 ml
Depth
11.0 km
Coordinates
53.8807, -166.6530
Data consistency
85/100

Regional activity (100 km)

Last 24 hours
0
Last 7 days
3
Last 30 days
16

Approximate energy released

≈ 0.5 t TNT

2.00e+9 J

Approximated with the Gutenberg–Richter relation (log E = 1.5 M + 4.8); depends on magnitude type. Gutenberg & Richter (1956).

Did you feel this earthquake?

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Community reports

Based on voluntary reports from users; not an instrumental measurement or official intensity. For official information follow AFAD and Kandilli Observatory announcements.

Impact information reported by sources

  • USGS Earthquake Hazards Program Tsunami flag: No

These values are automatic products of the respective agency, not an assessment by this platform. For tsunami warnings follow the Kandilli Observatory Regional Earthquake-Tsunami Monitoring Center and AFAD.

Nearby places

No records.

Nearby faults (50 km)

No mapped fault within 50 km.

Last year, within 100 km

16 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 11
  • M3 4
  • M4 0
  • M5 1
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 2
  • 10–20 km 4
  • 20–40 km 7
  • 40–70 km 2
  • 70–150 km 1
  • 150+ km 0

Largest previous earthquakes within 100 km

Largest earthquakes in the platform catalogue and entries from historical catalogues (with citation).

Comparison with past records

…

No earlier earthquakes are recorded in this area.

  • Source:

Where does this earthquake come from?

Source comparison

Sources report different values.
Agency Magnitude Depth Time (UTC) Difference from master Original record
EMSC-CSEM
FOX ISLANDS, ALEUTIAN ISLANDS
 2.6 ml 8.8 km 19:53:02.280 Δt 0.09 sn · 2.55 km · ΔM -0.4 Original record
USGS Earthquake Hazards Program Displayed
7 km W of Dutch Harbor, Alaska
 3.0 ml 11.0 km 19:53:02.186 Δt 0 sn · 0 km · ΔM 0 Original record

This value summarises agreement between sources; it is not a measure of scientific accuracy. Euro-Mediterranean Seismological Centre (EMSC-CSEM) — CC BY 4.0 U.S. Geological Survey (USGS) Earthquake Hazards Program — Public domain (U.S. Government)

Revision history

  1. 31.10.2026 17:12:35 · USGS · update

    depth: 8.79 → 11.01 latitude: 53.89917 → 53.8807 longitude: -166.63017 → -166.653 magnitude: 2.6 → 3 time: 2026-10-30T19:53:02.280+00:00 → 2026-10-30T19:53:02.186+00:00 location: 5 km W of Dutch Harbor, Alaska → 7 km W of Dutch Harbor, Alaska

  2. 31.10.2026 17:12:35 · SISTEM · recompute

    depth: 8.79 → 11.01 latitude: 53.89917 → 53.8807 longitude: -166.63017 → -166.653 magnitude: 2.6 → 3 time: 2026-10-30T19:53:02.280Z → 2026-10-30 19:53:02.186+00:00

  3. 31.10.2026 07:14:45 · SISTEM · recompute

    depth: 8.8 → 8.79 latitude: 53.8992 → 53.89917 longitude: -166.6302 → -166.63017 source count: 1 → 2 review status: automatic → reviewed confirming sources: emsc → emsc,usgs preferred source: 3 → 4

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