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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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4.9

78 km ESE of Hitachi, Japan

10 November 2026, 08:20:08 (+03) 2026-11-10 05:20:08 UTC

2 sources: EMSC, USGS mb
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Magnitude
4.9 mb
Depth
35.0 km
Coordinates
36.3338, 141.4659
Data consistency
87/100

Regional activity (100 km)

Last 24 hours
1
Last 7 days
8
Last 30 days
14

Approximate energy released

≈ 338 t TNT

1.41e+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

15 earthquakes

By magnitude

  • M0 0
  • M1 0
  • M2 0
  • M3 4
  • M4 7
  • M5 4
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 0
  • 10–20 km 4
  • 20–40 km 7
  • 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
NEAR EAST COAST OF HONSHU, JAPAN
 4.9 mb 30.0 km 05:20:07.620 Δt 1.06 sn · 12.97 km · ΔM 0 Original record
USGS Earthquake Hazards Program Displayed
78 km ESE of Hitachi, Japan
 4.9 mb 35.0 km 05:20:08.677 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. 10.11.2026 10:47:22 · EMSC · update

    depth: 35 → 30 latitude: 36.3338 → 36.2507 longitude: 141.4659 → 141.5674 time: 2026-11-10T05:20:08.677+00:00 → 2026-11-10T05:20:07.620+00:00

  2. 10.11.2026 08:54:46 · SISTEM · recompute

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

  3. 10.11.2026 08:54:45 · EMSC · update

    depth: 10 → 35 latitude: 36.228 → 36.3338 longitude: 141.74 → 141.4659 magnitude: 4.5 → 4.9 time: 2026-11-10T05:20:04.500+00:00 → 2026-11-10T05:20:08.677+00:00 magnitude type: m → mb

  4. 10.11.2026 08:54:45 · SISTEM · recompute

    depth: 10 → 35 latitude: 36.228 → 36.3338 longitude: 141.74 → 141.4659 magnitude: 4.5 → 4.9 time: 2026-11-10T05:20:04.500Z → 2026-11-10 05:20:08.677+00:00 magnitude type: m → mb

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