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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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4.6

121 km ENE of Shikotan, Russia

30 October 2026, 00:12:36 (+03) 2026-10-29 21:12:36 UTC

2 sources: EMSC, USGS mb
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Magnitude
4.6 mb
Depth
35.0 km
Coordinates
44.1091, 148.1794
Data consistency
89/100

Regional activity (100 km)

Last 24 hours
0
Last 7 days
1
Last 30 days
4

Approximate energy released

≈ 120 t TNT

5.01e+11 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

5 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 0
  • M3 0
  • M4 5
  • M5 0
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 0
  • 10–20 km 0
  • 20–40 km 1
  • 40–70 km 1
  • 70–150 km 3
  • 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
KURIL ISLANDS
 4.6 mb 49.0 km 21:12:37.190 Δt 0.9 sn · 8.47 km · ΔM 0 Original record
USGS Earthquake Hazards Program Displayed
121 km ENE of Shikotan, Russia
 4.6 mb 35.0 km 21:12:36.287 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. 30.10.2026 10:38:14 · EMSC · update

    depth: 50 → 49 latitude: 44.12 → 44.1477 longitude: 148.29 → 148.0882 time: 2026-10-29T21:12:35.300+00:00 → 2026-10-29T21:12:37.190+00:00

  2. 30.10.2026 07:01:03 · EMSC · update

    depth: 35 → 50 latitude: 44.1091 → 44.12 longitude: 148.1794 → 148.29 time: 2026-10-29T21:12:36.287+00:00 → 2026-10-29T21:12:35.300+00:00

  3. 30.10.2026 01:48:12 · SISTEM · recompute

    source count: 1 → 2 review status: automatic → reviewed confirming sources: emsc → emsc,usgs preferred source: 3 → 4

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