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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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5.2

101 km SSW of Severo-Kuril’sk, Russia

11 October 2026, 20:00:29 (+03) 2026-10-11 17:00:29 UTC

3 sources: EMSC, USGS, GFZ mww
Did you feel this earthquake?
Magnitude
5.2 mww
Depth
83.4 km
Coordinates
49.7885, 155.7863
Data consistency
97/100

Regional activity (100 km)

Last 24 hours
0
Last 7 days
1
Last 30 days
3

Approximate energy released

≈ 951 t TNT

3.98e+12 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

4 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 0
  • M3 1
  • M4 2
  • M5 1
  • M6 0
  • M7 0
  • M8+ 0

By depth

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

Largest previous earthquakes within 100 km

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

No records.

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
KURIL ISLANDS
 5.2 mw 76.0 km 17:00:28.790 Δt 0.49 sn · 8.31 km · ΔM 0 Original record
USGS Earthquake Hazards Program Displayed
101 km SSW of Severo-Kuril’sk, Russia
 5.2 mww 83.4 km 17:00:29.277 Δt 0 sn · 0 km · ΔM 0 Original record
GFZ GEOFON
Kuril Islands
 5.3 mb 10.0 km 17:00:20.970 Δt 8.31 sn · 2.39 km · ΔM +0.1 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) GEOFON Program, GFZ Helmholtz Centre for Geosciences — CC BY 4.0

Revision history

  1. 12.10.2026 00:36:10 · EMSC · update

    depth: 83.4 → 76 latitude: 49.7885 → 49.7645 longitude: 155.7863 → 155.8956 time: 2026-10-11T17:00:29.277+00:00 → 2026-10-11T17:00:28.790+00:00

  2. 11.10.2026 20:23:45 · SISTEM · recompute

    depth: 83.4 → 83.39 source count: 2 → 3 review status: automatic → reviewed magnitude type: mw → mww confirming sources: emsc,gfz → emsc,usgs,gfz preferred source: 3 → 4

  3. 11.10.2026 20:23:37 · EMSC · update

    depth: 76 → 83.4 latitude: 49.7949 → 49.7885 longitude: 155.8328 → 155.7863 magnitude: 5.3 → 5.2 time: 2026-10-11T17:00:28.890+00:00 → 2026-10-11T17:00:29.277+00:00 magnitude type: mb → mw

  4. 11.10.2026 20:23:37 · SISTEM · recompute

    depth: 76 → 83.4 latitude: 49.7949 → 49.7885 longitude: 155.8328 → 155.7863 magnitude: 5.3 → 5.2 time: 2026-10-11T17:00:28.890Z → 2026-10-11 17:00:29.277+00:00 magnitude type: mb → mw

  5. 11.10.2026 20:20:33 · EMSC · update

    latitude: 49.7802 → 49.7949 longitude: 155.8383 → 155.8328 time: 2026-10-11T17:00:29.150+00:00 → 2026-10-11T17:00:28.890+00:00

  6. 11.10.2026 20:20:33 · SISTEM · recompute

    latitude: 49.7802 → 49.7949 longitude: 155.8383 → 155.8328 time: 2026-10-11T17:00:29.150Z → 2026-10-11 17:00:28.890+00:00

  7. 11.10.2026 20:19:06 · GFZ · update

    depth: 81.5 → 10 latitude: 49.824 → 49.792 longitude: 155.798 → 155.819 magnitude: 5.2 → 5.3 time: 2026-10-11T17:00:30.270+00:00 → 2026-10-11T17:00:20.970+00:00

  8. 11.10.2026 20:18:31 · EMSC · update

    longitude: 155.8315 → 155.8383 magnitude: 5.2 → 5.3 time: 2026-10-11T17:00:29.190+00:00 → 2026-10-11T17:00:29.150+00:00

  9. 11.10.2026 20:18:31 · SISTEM · recompute

    longitude: 155.8315 → 155.8383 magnitude: 5.2 → 5.3 time: 2026-10-11T17:00:29.190Z → 2026-10-11 17:00:29.150+00:00

  10. 11.10.2026 20:14:24 · EMSC · update

    latitude: 49.84 → 49.7802 longitude: 155.8142 → 155.8315 time: 2026-10-11T17:00:29.580+00:00 → 2026-10-11T17:00:29.190+00:00

  11. 11.10.2026 20:14:24 · SISTEM · recompute

    latitude: 49.84 → 49.7802 longitude: 155.8142 → 155.8315 time: 2026-10-11T17:00:29.580Z → 2026-10-11 17:00:29.190+00:00

  12. 11.10.2026 20:12:53 · SISTEM · recompute

    source count: 1 → 2 confirming sources: emsc → emsc,gfz

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