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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

Volcano Islands, Japan region

25 October 2026, 12:11:17 (+03) 2026-10-25 09:11:17 UTC

2 sources: EMSC, USGS mb
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Magnitude
4.6 mb
Depth
133.1 km
Coordinates
22.5515, 142.9691
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).

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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

3 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 0
  • M3 0
  • 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 0
  • 70–150 km 1
  • 150+ km 1

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
VOLCANO ISLANDS, JAPAN REGION
 4.6 mb 156.0 km 09:11:19.690 Δt 2.28 sn · 10.85 km · ΔM 0 Original record
USGS Earthquake Hazards Program Displayed
Volcano Islands, Japan region
 4.6 mb 133.1 km 09:11:17.412 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. 25.10.2026 22:37:02 · EMSC · update

    depth: 130 → 156 latitude: 22.61 → 22.6463 longitude: 143.13 → 142.9426 time: 2026-10-25T09:11:16.900+00:00 → 2026-10-25T09:11:19.690+00:00

  2. 25.10.2026 13:38:26 · EMSC · update

    depth: 133.1 → 130 latitude: 22.5515 → 22.61 longitude: 142.9691 → 143.13 time: 2026-10-25T09:11:17.412+00:00 → 2026-10-25T09:11:16.900+00:00

  3. 25.10.2026 12:28:18 · SISTEM · recompute

    depth: 133.1 → 133.08 source count: 1 → 2 review status: automatic → reviewed confirming sources: emsc → emsc,usgs preferred source: 3 → 4

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