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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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2.8

66 km WNW of Happy Valley, Alaska

23 October 2026, 10:14:13 (+03) 2026-10-23 07:14:13 UTC

2 sources: EMSC, USGS ml
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Magnitude
2.8 ml
Depth
122.4 km
Coordinates
60.1200, -152.8800
Data consistency
90/100

Regional activity (100 km)

Last 24 hours
3
Last 7 days
14
Last 30 days
46

Approximate energy released

≈ 0.2 t TNT

1.00e+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

59 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 50
  • M3 9
  • M4 0
  • M5 0
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 0
  • 10–20 km 0
  • 20–40 km 0
  • 40–70 km 7
  • 70–150 km 50
  • 150+ km 2

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
SOUTHERN ALASKA
 2.7 ml 127.1 km 07:14:13.001 Δt 0.81 sn · 2.24 km · ΔM -0.1 Original record
USGS Earthquake Hazards Program Displayed
66 km WNW of Happy Valley, Alaska
 2.8 ml 122.4 km 07:14:13.808 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. 28.10.2026 01:13:58 · USGS · update

    depth: 123 → 122.4 latitude: 60.118 → 60.12 longitude: -152.869 → -152.88 magnitude: 2.7 → 2.8 time: 2026-10-23T07:14:13.832+00:00 → 2026-10-23T07:14:13.808+00:00 review status: automatic → reviewed

  2. 28.10.2026 01:13:58 · SISTEM · recompute

    depth: 127.1 → 122.4 latitude: 60.1305 → 60.12 longitude: -152.9143 → -152.88 magnitude: 2.7 → 2.8 time: 2026-10-23T07:14:13.001Z → 2026-10-23 07:14:13.808+00:00 review status: automatic → reviewed preferred source: 3 → 4

  3. 23.10.2026 10:34:57 · SISTEM · recompute

    depth: 123 → 127.1 latitude: 60.118 → 60.1305 longitude: -152.869 → -152.9143 time: 2026-10-23T07:14:13.832Z → 2026-10-23 07:14:13.001+00:00 source count: 1 → 2 confirming sources: usgs → emsc,usgs preferred source: 4 → 3

  4. 23.10.2026 10:19:07 · USGS · update

    latitude: 60.119 → 60.118 longitude: -152.873 → -152.869 time: 2026-10-23T07:14:13.831+00:00 → 2026-10-23T07:14:13.832+00:00

  5. 23.10.2026 10:19:07 · SISTEM · recompute

    latitude: 60.119 → 60.118 longitude: -152.873 → -152.869 time: 2026-10-23T07:14:13.831Z → 2026-10-23 07:14:13.832+00:00

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