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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

64 km SSW of Shikotan, Russia

30 October 2026, 11:45:49 (+03) 2026-10-30 08:45:49 UTC

2 sources: EMSC, USGS mb
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Magnitude
4.6 mb
Depth
43.6 km
Coordinates
43.2605, 146.4242
Data consistency
88/100

Regional activity (100 km)

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

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

4 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 0
  • M3 1
  • M4 3
  • 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 4
  • 70–150 km 0
  • 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 55.0 km 08:45:51.250 Δt 1.27 sn · 10.37 km · ΔM 0 Original record
USGS Earthquake Hazards Program Displayed
64 km SSW of Shikotan, Russia
 4.6 mb 43.6 km 08:45:49.982 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 13:02:02 · EMSC · update

    depth: 50 → 55 latitude: 43.28 → 43.3338 longitude: 146.39 → 146.345 time: 2026-10-30T08:45:50.700+00:00 → 2026-10-30T08:45:51.250+00:00

  2. 30.10.2026 12:51:36 · EMSC · update

    magnitude: 4.5 → 4.6

  3. 30.10.2026 12:30:38 · EMSC · update

    depth: 43.6 → 50 latitude: 43.2605 → 43.28 longitude: 146.4242 → 146.39 magnitude: 4.2 → 4.5 time: 2026-10-30T08:45:49.982+00:00 → 2026-10-30T08:45:50.700+00:00 magnitude type: m → mb

  4. 30.10.2026 12:02:00 · SISTEM · recompute

    depth: 43.6 → 43.63 magnitude: 4.2 → 4.6 source count: 1 → 2 review status: automatic → reviewed magnitude type: m → mb confirming sources: emsc → emsc,usgs preferred source: 3 → 4

  5. 30.10.2026 12:01:59 · EMSC · update

    depth: 50 → 43.6 latitude: 43.3 → 43.2605 longitude: 146.3 → 146.4242 time: 2026-10-30T08:45:30.000+00:00 → 2026-10-30T08:45:49.982+00:00

  6. 30.10.2026 12:01:59 · SISTEM · recompute

    depth: 50 → 43.6 latitude: 43.3 → 43.2605 longitude: 146.3 → 146.4242 time: 2026-10-30T08:45:30.000Z → 2026-10-30 08:45:49.982+00:00

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