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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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3.7

Aegean Sea

31 October 2026, 16:16:00 (+03) 2026-10-31 13:16:00 UTC

2 sources: EMSC, NOA MLh
Did you feel this earthquake?
Magnitude
3.7 MLh
Depth
17.2 km
Coordinates
39.6845, 24.2413
Data consistency
84/100

Regional activity (100 km)

Last 24 hours
3
Last 7 days
29
Last 30 days
222

Approximate energy released

≈ 5.4 t TNT

2.24e+10 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.

Nearby places

Nearby faults (50 km)

No mapped fault within 50 km.

Last year, within 100 km

247 earthquakes

By magnitude

  • M0 0
  • M1 77
  • M2 133
  • M3 30
  • M4 6
  • M5 1
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 67
  • 10–20 km 154
  • 20–40 km 24
  • 40–70 km 1
  • 70–150 km 0
  • 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
AEGEAN SEA
 3.7 ml 17.2 km 13:16:00.660 Δt 0.28 sn · 0.01 km · ΔM 0 Original record
NOA – Institute of Geodynamics Displayed
Aegean Sea
 3.7 MLh 17.2 km 13:16:00.382 Δt 0 sn · 0 km · ΔM 0

This value summarises agreement between sources; it is not a measure of scientific accuracy. Euro-Mediterranean Seismological Centre (EMSC-CSEM) — CC BY 4.0 National Observatory of Athens, Institute of Geodynamics (NOA-IG) — NOA kullanım koşulları

Revision history

  1. 31.10.2026 22:23:21 · EMSC · update

    time: 2026-10-31T13:16:00.382+00:00 → 2026-10-31T13:16:00.660+00:00

  2. 31.10.2026 17:34:45 · EMSC · update

    time: 2026-10-31T13:16:00.382+00:00 → 2026-10-31T13:16:00.381+00:00

  3. 31.10.2026 17:30:36 · EMSC · update

    time: 2026-10-31T13:16:00.382+00:00 → 2026-10-31T13:16:00.381+00:00

  4. 31.10.2026 17:27:17 · EMSC · update

    time: 2026-10-31T13:16:00.382+00:00 → 2026-10-31T13:16:00.381+00:00

  5. 31.10.2026 17:26:05 · EMSC · update

    time: 2026-10-31T13:16:00.382+00:00 → 2026-10-31T13:16:00.381+00:00

  6. 31.10.2026 17:24:00 · EMSC · update

    time: 2026-10-31T13:16:00.382+00:00 → 2026-10-31T13:16:00.381+00:00

  7. 31.10.2026 17:22:53 · EMSC · update

    time: 2026-10-31T13:16:00.382+00:00 → 2026-10-31T13:16:00.381+00:00

  8. 31.10.2026 17:21:53 · EMSC · update

    time: 2026-10-31T13:16:00.382+00:00 → 2026-10-31T13:16:00.381+00:00

  9. 31.10.2026 17:20:52 · EMSC · update

    time: 2026-10-31T13:16:00.382+00:00 → 2026-10-31T13:16:00.381+00:00

  10. 31.10.2026 17:17:55 · NOA · update

    time: 2026-10-31T13:16:00.382+00:00 → 2026-10-31T13:16:00.381+00:00

  11. 31.10.2026 17:16:45 · EMSC · update

    time: 2026-10-31T13:16:00.382+00:00 → 2026-10-31T13:16:00.381+00:00

  12. 31.10.2026 17:12:34 · EMSC · update

    time: 2026-10-31T13:16:00.382+00:00 → 2026-10-31T13:16:00.381+00:00

  13. 31.10.2026 17:10:30 · EMSC · update

    time: 2026-10-31T13:16:00.382+00:00 → 2026-10-31T13:16:00.381+00:00

  14. 31.10.2026 17:06:13 · EMSC · update

    time: 2026-10-31T13:16:00.382+00:00 → 2026-10-31T13:16:00.381+00:00

  15. 31.10.2026 17:01:53 · EMSC · update

    time: 2026-10-31T13:16:00.382+00:00 → 2026-10-31T13:16:00.381+00:00

  16. 31.10.2026 17:01:37 · NOA · update

    time: 2026-10-31T13:16:00.382+00:00 → 2026-10-31T13:16:00.381+00:00

  17. 31.10.2026 17:00:56 · EMSC · update

    time: 2026-10-31T13:16:00.382+00:00 → 2026-10-31T13:16:00.381+00:00

  18. 31.10.2026 16:55:51 · NOA · update

    time: 2026-10-31T13:16:00.382+00:00 → 2026-10-31T13:16:00.381+00:00

  19. 31.10.2026 16:52:35 · EMSC · update

    time: 2026-10-31T13:16:00.382+00:00 → 2026-10-31T13:16:00.381+00:00

  20. 31.10.2026 16:51:30 · EMSC · update

    time: 2026-10-31T13:16:00.382+00:00 → 2026-10-31T13:16:00.381+00:00

  21. 31.10.2026 16:50:24 · EMSC · update

    time: 2026-10-31T13:16:00.382+00:00 → 2026-10-31T13:16:00.381+00:00

  22. 31.10.2026 16:48:06 · EMSC · update

    time: 2026-10-31T13:16:00.382+00:00 → 2026-10-31T13:16:00.381+00:00

  23. 31.10.2026 16:47:07 · EMSC · update

    time: 2026-10-31T13:16:00.382+00:00 → 2026-10-31T13:16:00.381+00:00

  24. 31.10.2026 16:43:17 · NOA · update

    time: 2026-10-31T13:16:00.382+00:00 → 2026-10-31T13:16:00.381+00:00

  25. 31.10.2026 16:41:14 · NOA · update

    time: 2026-10-31T13:16:00.382+00:00 → 2026-10-31T13:16:00.381+00:00

  26. 31.10.2026 16:40:51 · EMSC · update

    time: 2026-10-31T13:16:00.382+00:00 → 2026-10-31T13:16:00.381+00:00

  27. 31.10.2026 16:39:46 · EMSC · update

    time: 2026-10-31T13:16:00.382+00:00 → 2026-10-31T13:16:00.381+00:00

  28. 31.10.2026 16:38:46 · EMSC · update

    depth: 9 → 17.2 latitude: 39.69 → 39.6844 longitude: 24.22 → 24.2413 time: 2026-10-31T13:16:00.800+00:00 → 2026-10-31T13:16:00.381+00:00

  29. 31.10.2026 16:37:04 · NOA · update

    depth: 10 → 17.23 latitude: 39.69461 → 39.68445 longitude: 24.28217 → 24.24133 time: 2026-10-31T13:16:01.020+00:00 → 2026-10-31T13:16:00.381+00:00

  30. 31.10.2026 16:37:04 · SISTEM · recompute

    depth: 10 → 17.23 latitude: 39.69461 → 39.68445 longitude: 24.28217 → 24.24133 time: 2026-10-31T13:16:01.020Z → 2026-10-31 13:16:00.382+00:00

  31. 31.10.2026 16:32:59 · NOA · update

    time: 2026-10-31T13:16:01.020+00:00 → 2026-10-31T13:16:01.019+00:00

  32. 31.10.2026 16:30:58 · NOA · update

    time: 2026-10-31T13:16:01.020+00:00 → 2026-10-31T13:16:01.019+00:00

  33. 31.10.2026 16:27:25 · EMSC · update

    depth: 10 → 9 longitude: 24.26 → 24.22 time: 2026-10-31T13:16:00.900+00:00 → 2026-10-31T13:16:00.800+00:00

  34. 31.10.2026 16:24:51 · NOA · update

    time: 2026-10-31T13:16:01.020+00:00 → 2026-10-31T13:16:01.019+00:00

  35. 31.10.2026 16:22:48 · NOA · update

    latitude: 39.69436 → 39.69461 longitude: 24.28235 → 24.28217 time: 2026-10-31T13:16:01.022+00:00 → 2026-10-31T13:16:01.019+00:00

  36. 31.10.2026 16:22:48 · SISTEM · recompute

    latitude: 39.69436 → 39.69461 longitude: 24.28235 → 24.28217 time: 2026-10-31T13:16:01.022Z → 2026-10-31 13:16:01.020+00:00

  37. 31.10.2026 16:20:45 · NOA · update

    time: 2026-10-31T13:16:01.022+00:00 → 2026-10-31T13:16:01.021+00:00

  38. 31.10.2026 16:20:01 · EMSC · update

    latitude: 39.6944 → 39.69 longitude: 24.2824 → 24.26 time: 2026-10-31T13:16:01.022+00:00 → 2026-10-31T13:16:00.900+00:00

  39. 31.10.2026 16:18:57 · SISTEM · recompute

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

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