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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

30 October 2026, 15:05:13 (+03) 2026-10-30 12:05:13 UTC

2 sources: EMSC, NOA MLh
Did you feel this earthquake?
Magnitude
3.7 MLh
Depth
14.2 km
Coordinates
39.6780, 24.2203
Data consistency
84/100

Regional activity (100 km)

Last 24 hours
6
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

249 earthquakes

By magnitude

  • M0 0
  • M1 77
  • M2 133
  • M3 31
  • M4 7
  • M5 1
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 68
  • 10–20 km 155
  • 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 14.2 km 12:05:14.430 Δt 0.55 sn · 0 km · ΔM 0 Original record
NOA – Institute of Geodynamics Displayed
Aegean Sea
 3.7 MLh 14.2 km 12:05:13.876 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. 30.10.2026 16:45:52 · EMSC · update

    magnitude: 3.6 → 3.7 time: 2026-10-30T12:05:13.876+00:00 → 2026-10-30T12:05:14.430+00:00

  2. 30.10.2026 16:29:07 · EMSC · update

    magnitude: 2.8 → 3.6

  3. 30.10.2026 16:17:30 · EMSC · update

    magnitude: 3.6 → 2.8

  4. 30.10.2026 15:33:50 · EMSC · update

    depth: 10 → 14.2 latitude: 39.67 → 39.678 longitude: 24.25 → 24.2203 time: 2026-10-30T12:05:14.700+00:00 → 2026-10-30T12:05:13.876+00:00

  5. 30.10.2026 15:33:28 · NOA · update

    depth: 10 → 14.18 latitude: 39.6835 → 39.67804 longitude: 24.27844 → 24.22028 magnitude: 3.6 → 3.7 time: 2026-10-30T12:05:14.404+00:00 → 2026-10-30T12:05:13.876+00:00

  6. 30.10.2026 15:33:28 · SISTEM · recompute

    depth: 10 → 14.18 latitude: 39.6835 → 39.67804 longitude: 24.27844 → 24.22028 magnitude: 3.6 → 3.7 time: 2026-10-30T12:05:14.404Z → 2026-10-30 12:05:13.876+00:00

  7. 30.10.2026 15:31:30 · NOA · update

    time: 2026-10-30T12:05:14.404+00:00 → 2026-10-30T12:05:14.403+00:00

  8. 30.10.2026 15:29:27 · NOA · update

    time: 2026-10-30T12:05:14.404+00:00 → 2026-10-30T12:05:14.403+00:00

  9. 30.10.2026 15:27:26 · NOA · update

    time: 2026-10-30T12:05:14.404+00:00 → 2026-10-30T12:05:14.403+00:00

  10. 30.10.2026 15:25:27 · NOA · update

    time: 2026-10-30T12:05:14.404+00:00 → 2026-10-30T12:05:14.403+00:00

  11. 30.10.2026 15:23:28 · NOA · update

    time: 2026-10-30T12:05:14.404+00:00 → 2026-10-30T12:05:14.403+00:00

  12. 30.10.2026 15:21:29 · NOA · update

    time: 2026-10-30T12:05:14.404+00:00 → 2026-10-30T12:05:14.403+00:00

  13. 30.10.2026 15:19:22 · NOA · update

    time: 2026-10-30T12:05:14.404+00:00 → 2026-10-30T12:05:14.403+00:00

  14. 30.10.2026 15:17:19 · NOA · update

    latitude: 39.68665 → 39.6835 longitude: 24.27614 → 24.27844 time: 2026-10-30T12:05:14.381+00:00 → 2026-10-30T12:05:14.403+00:00

  15. 30.10.2026 15:17:19 · SISTEM · recompute

    latitude: 39.68665 → 39.6835 longitude: 24.27614 → 24.27844 time: 2026-10-30T12:05:14.381Z → 2026-10-30 12:05:14.404+00:00

  16. 30.10.2026 15:15:16 · NOA · update

    time: 2026-10-30T12:05:14.381+00:00 → 2026-10-30T12:05:14.380+00:00

  17. 30.10.2026 15:10:57 · NOA · update

    time: 2026-10-30T12:05:14.381+00:00 → 2026-10-30T12:05:14.380+00:00

  18. 30.10.2026 15:09:25 · EMSC · update

    latitude: 39.6866 → 39.67 longitude: 24.2761 → 24.25 time: 2026-10-30T12:05:14.381+00:00 → 2026-10-30T12:05:14.700+00:00

  19. 30.10.2026 15:08:57 · NOA · update

    latitude: 39.69093 → 39.68665 longitude: 24.24195 → 24.27614 time: 2026-10-30T12:05:14.239+00:00 → 2026-10-30T12:05:14.380+00:00

  20. 30.10.2026 15:08:57 · SISTEM · recompute

    latitude: 39.69093 → 39.68665 longitude: 24.24195 → 24.27614 time: 2026-10-30T12:05:14.239Z → 2026-10-30 12:05:14.381+00:00

  21. 30.10.2026 15:08:22 · SISTEM · recompute

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

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