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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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5.1

72 km ENE of Noda, Japan

23 October 2026, 19:07:51 (+03) 2026-10-23 16:07:51 UTC

3 sources: EMSC, USGS, GFZ mb
Did you feel this earthquake?
Magnitude
5.1 mb
Depth
38.1 km
Coordinates
40.4159, 142.5720
Data consistency
92/100

Regional activity (100 km)

Last 24 hours
1
Last 7 days
2
Last 30 days
10

Approximate energy released

≈ 674 t TNT

2.82e+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

11 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 0
  • M3 2
  • M4 8
  • M5 1
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 0
  • 10–20 km 0
  • 20–40 km 5
  • 40–70 km 6
  • 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

Sources report different values.
Agency Magnitude Depth Time (UTC) Difference from master Original record
EMSC-CSEM
NEAR EAST COAST OF HONSHU, JAPAN
 5.1 mb 40.0 km 16:07:51.240 Δt 0.51 sn · 14.27 km · ΔM 0 Original record
USGS Earthquake Hazards Program Displayed
72 km ENE of Noda, Japan
 5.1 mb 38.1 km 16:07:51.754 Δt 0 sn · 0 km · ΔM 0 Original record
GFZ GEOFON
Near East Coast of Honshu, Japan
 5.3 mb 10.0 km 16:07:47.330 Δt 4.42 sn · 19.96 km · ΔM +0.2 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. 24.10.2026 09:50:41 · EMSC · update

    depth: 38.1 → 40 latitude: 40.4159 → 40.3231 longitude: 142.572 → 142.6883 time: 2026-10-23T16:07:51.754+00:00 → 2026-10-23T16:07:51.240+00:00

  2. 23.10.2026 19:38:22 · GFZ · update

    latitude: 40.268 → 40.285 longitude: 142.763 → 142.733 magnitude: 5.2 → 5.3 time: 2026-10-23T16:07:47.820+00:00 → 2026-10-23T16:07:47.330+00:00

  3. 23.10.2026 19:28:08 · SISTEM · recompute

    depth: 38.1 → 38.14 source count: 2 → 3 review status: automatic → reviewed confirming sources: emsc,gfz → emsc,usgs,gfz preferred source: 3 → 4

  4. 23.10.2026 19:28:06 · EMSC · update

    depth: 32 → 38.1 latitude: 40.282 → 40.4159 longitude: 142.6827 → 142.572 magnitude: 5 → 5.1 time: 2026-10-23T16:07:50.680+00:00 → 2026-10-23T16:07:51.754+00:00 magnitude type: m → mb

  5. 23.10.2026 19:28:06 · SISTEM · recompute

    depth: 32 → 38.1 latitude: 40.282 → 40.4159 longitude: 142.6827 → 142.572 magnitude: 5 → 5.1 time: 2026-10-23T16:07:50.680Z → 2026-10-23 16:07:51.754+00:00 magnitude type: m → mb

  6. 23.10.2026 19:21:53 · GFZ · update

    depth: 39 → 10 latitude: 40.383 → 40.268 longitude: 142.799 → 142.763 magnitude: 5.3 → 5.2 time: 2026-10-23T16:07:51.060+00:00 → 2026-10-23T16:07:47.820+00:00

  7. 23.10.2026 19:21:51 · EMSC · update

    depth: 10 → 32 latitude: 40.268 → 40.282 longitude: 142.763 → 142.6827 time: 2026-10-23T16:07:47.820+00:00 → 2026-10-23T16:07:50.680+00:00

  8. 23.10.2026 19:21:51 · SISTEM · recompute

    depth: 10 → 32 latitude: 40.268 → 40.282 longitude: 142.763 → 142.6827 time: 2026-10-23T16:07:47.820Z → 2026-10-23 16:07:50.680+00:00

  9. 23.10.2026 19:20:46 · EMSC · update

    depth: 21 → 10 latitude: 40.3021 → 40.268 longitude: 142.7947 → 142.763 time: 2026-10-23T16:07:48.710+00:00 → 2026-10-23T16:07:47.820+00:00

  10. 23.10.2026 19:20:46 · SISTEM · recompute

    depth: 21 → 10 latitude: 40.3021 → 40.268 longitude: 142.7947 → 142.763 time: 2026-10-23T16:07:48.710Z → 2026-10-23 16:07:47.820+00:00

  11. 23.10.2026 19:17:44 · SISTEM · recompute

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

  12. 23.10.2026 19:17:36 · EMSC · update

    latitude: 40.2722 → 40.3021 longitude: 142.9816 → 142.7947 time: 2026-10-23T16:07:47.880+00:00 → 2026-10-23T16:07:48.710+00:00

  13. 23.10.2026 19:17:36 · SISTEM · recompute

    latitude: 40.2722 → 40.3021 longitude: 142.9816 → 142.7947 time: 2026-10-23T16:07:47.880Z → 2026-10-23 16:07:48.710+00:00

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