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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

CENTRAL ALASKA

27 September 2026, 15:53:05 (+03) 2026-09-27 12:53:05 UTC

2 sources: EMSC, USGS ml
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Magnitude
3.0 ml
Depth
10.0 km
Coordinates
62.6098, -152.1573
Data consistency
85/100

Regional activity (100 km)

Last 24 hours
2
Last 7 days
7
Last 30 days
18

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

27 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 19
  • M3 8
  • M4 0
  • M5 0
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 5
  • 10–20 km 1
  • 20–40 km 0
  • 40–70 km 0
  • 70–150 km 21
  • 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

Agency Magnitude Depth Time (UTC) Difference from master Original record
EMSC-CSEM Displayed
CENTRAL ALASKA
 3.0 ml 10.0 km 12:53:05.944 Δt 0 sn · 0 km · ΔM 0 Original record
USGS Earthquake Hazards Program
71 km WNW of Petersville, Alaska
 3.0 ml 5.0 km 12:53:05.943 Δt 0 sn · 4.66 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. 27.09.2026 16:10:44 · EMSC · update

    depth: 5 → 10 latitude: 62.647 → 62.6098 longitude: -152.116 → -152.1573 time: 2026-09-27T12:53:05.943+00:00 → 2026-09-27T12:53:05.944+00:00

  2. 27.09.2026 16:10:44 · SISTEM · recompute

    depth: 5 → 10 latitude: 62.647 → 62.6098 longitude: -152.116 → -152.1573 time: 2026-09-27T12:53:05.943Z → 2026-09-27 12:53:05.944+00:00

  3. 27.09.2026 15:58:18 · USGS · update

    latitude: 62.644 → 62.647 longitude: -152.107 → -152.116 magnitude: 2.9 → 3 time: 2026-09-27T12:53:06.021+00:00 → 2026-09-27T12:53:05.943+00:00 location: 70 km WNW of Petersville, Alaska → 71 km WNW of Petersville, Alaska

  4. 27.09.2026 15:58:17 · SISTEM · recompute

    latitude: 62.644 → 62.647 longitude: -152.107 → -152.116 magnitude: 2.9 → 3 time: 2026-09-27T12:53:06.021Z → 2026-09-27 12:53:05.943+00:00 source count: 1 → 2 confirming sources: usgs → emsc,usgs preferred source: 4 → 3

  5. 27.09.2026 15:56:15 · USGS · update

    latitude: 62.622 → 62.644 longitude: -152.145 → -152.107 time: 2026-09-27T12:53:05.221+00:00 → 2026-09-27T12:53:06.021+00:00 location: 72 km W of Petersville, Alaska → 70 km WNW of Petersville, Alaska

  6. 27.09.2026 15:56:15 · SISTEM · recompute

    latitude: 62.622 → 62.644 longitude: -152.145 → -152.107 time: 2026-09-27T12:53:05.221Z → 2026-09-27 12:53:06.021+00:00

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