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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

17 km N of Kushiro, Japan

29 October 2026, 02:13:50 (+03) 2026-10-28 23:13:50 UTC

2 sources: EMSC, USGS mb
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Magnitude
4.6 mb
Depth
130.1 km
Coordinates
43.1303, 144.3697
Data consistency
90/100

Regional activity (100 km)

Last 24 hours
0
Last 7 days
0
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).

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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

7 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 0
  • M3 2
  • M4 5
  • 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 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
HOKKAIDO, JAPAN REGION
 4.6 mb 130.0 km 23:13:50.770 Δt 0.01 sn · 4.66 km · ΔM 0 Original record
USGS Earthquake Hazards Program Displayed
17 km N of Kushiro, Japan
 4.6 mb 130.1 km 23:13:50.764 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. 29.10.2026 10:40:33 · EMSC · update

    depth: 125 → 130 latitude: 43.2 → 43.1722 longitude: 144.38 → 144.3729 time: 2026-10-28T23:13:50.500+00:00 → 2026-10-28T23:13:50.770+00:00

  2. 29.10.2026 03:10:33 · EMSC · update

    depth: 130.1 → 125 latitude: 43.1303 → 43.2 longitude: 144.3697 → 144.38 time: 2026-10-28T23:13:50.764+00:00 → 2026-10-28T23:13:50.500+00:00

  3. 29.10.2026 02:32:22 · SISTEM · recompute

    depth: 130.1 → 130.14 source count: 1 → 2 review status: automatic → reviewed confirming sources: emsc → emsc,usgs preferred source: 3 → 4

  4. 29.10.2026 02:32:18 · EMSC · update

    depth: 120 → 130.1 latitude: 43.1 → 43.1303 longitude: 144.5 → 144.3697 time: 2026-10-28T23:14:30.000+00:00 → 2026-10-28T23:13:50.764+00:00

  5. 29.10.2026 02:32:18 · SISTEM · recompute

    depth: 120 → 130.1 latitude: 43.1 → 43.1303 longitude: 144.5 → 144.3697 time: 2026-10-28T23:14:30.000Z → 2026-10-28 23:13:50.764+00:00

  6. 29.10.2026 02:25:55 · EMSC · update

    magnitude: 4.4 → 4.6 magnitude type: m → mb

  7. 29.10.2026 02:25:55 · SISTEM · recompute

    magnitude: 4.4 → 4.6 magnitude type: m → mb

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