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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, 14:00:47 (+03) 2026-10-30 11:00:47 UTC

3 sources: AFAD, EMSC, NOA MLh Under moderator review
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Magnitude
3.7 MLh
Depth
15.4 km
Coordinates
39.6758, 24.2116
Data consistency
93/100

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
AFAD Deprem Dairesi
Ege Denizi
 3.8 ML 3.7 km 11:00:45.000 Δt 2.5 sn · 6.45 km · ΔM +0.1 Original record
EMSC-CSEM
AEGEAN SEA
 3.8 ml 12.0 km 11:00:47.470 Δt 0.03 sn · 1.1 km · ΔM +0.1 Original record
NOA – Institute of Geodynamics Displayed
Aegean Sea
 3.7 MLh 15.4 km 11:00:47.497 Δt 0 sn · 0 km · ΔM 0

This value summarises agreement between sources; it is not a measure of scientific accuracy. T.C. İçişleri Bakanlığı Afet ve Acil Durum Yönetimi Başkanlığı (AFAD) — AFAD kullanım izni ile 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 15:05:01 · EMSC · update

    magnitude: 3.7 → 3.8 time: 2026-10-30T11:00:47.700+00:00 → 2026-10-30T11:00:47.470+00:00

  2. 30.10.2026 14:58:22 · NOA · update

    time: 2026-10-30T11:00:47.497+00:00 → 2026-10-30T11:00:47.496+00:00

  3. 30.10.2026 14:56:08 · NOA · update

    time: 2026-10-30T11:00:47.497+00:00 → 2026-10-30T11:00:47.496+00:00

  4. 30.10.2026 14:54:00 · NOA · update

    time: 2026-10-30T11:00:47.497+00:00 → 2026-10-30T11:00:47.496+00:00

  5. 30.10.2026 14:47:58 · NOA · update

    time: 2026-10-30T11:00:47.497+00:00 → 2026-10-30T11:00:47.496+00:00

  6. 30.10.2026 14:43:51 · NOA · update

    time: 2026-10-30T11:00:47.497+00:00 → 2026-10-30T11:00:47.496+00:00

  7. 30.10.2026 14:41:50 · NOA · update

    time: 2026-10-30T11:00:47.497+00:00 → 2026-10-30T11:00:47.496+00:00

  8. 30.10.2026 14:39:43 · NOA · update

    time: 2026-10-30T11:00:47.497+00:00 → 2026-10-30T11:00:47.496+00:00

  9. 30.10.2026 14:35:41 · NOA · update

    time: 2026-10-30T11:00:47.497+00:00 → 2026-10-30T11:00:47.496+00:00

  10. 30.10.2026 14:33:37 · NOA · update

    time: 2026-10-30T11:00:47.497+00:00 → 2026-10-30T11:00:47.496+00:00

  11. 30.10.2026 14:30:52 · EMSC · update

    depth: 15.4 → 12 latitude: 39.6758 → 39.68 longitude: 24.2116 → 24.2 magnitude: 3.6 → 3.7 time: 2026-10-30T11:00:47.497+00:00 → 2026-10-30T11:00:47.700+00:00

  12. 30.10.2026 14:29:50 · EMSC · update

    depth: 10 → 15.4 latitude: 39.67 → 39.6758 longitude: 24.26 → 24.2116 time: 2026-10-30T11:00:48.200+00:00 → 2026-10-30T11:00:47.496+00:00

  13. 30.10.2026 14:27:27 · NOA · update

    depth: 10 → 15.42 latitude: 39.67331 → 39.67575 longitude: 24.27988 → 24.21158 time: 2026-10-30T11:00:48.127+00:00 → 2026-10-30T11:00:47.496+00:00

  14. 30.10.2026 14:27:27 · SISTEM · recompute

    depth: 10 → 15.42 latitude: 39.67331 → 39.67575 longitude: 24.27988 → 24.21158 time: 2026-10-30T11:00:48.127Z → 2026-10-30 11:00:47.497+00:00

  15. 30.10.2026 14:23:20 · SISTEM · recompute

    source count: 2 → 3 confirming sources: emsc,noa → afad,emsc,noa

  16. 30.10.2026 14:08:08 · NOA · update

    latitude: 39.67159 → 39.67331 longitude: 24.27969 → 24.27988 time: 2026-10-30T11:00:48.119+00:00 → 2026-10-30T11:00:48.127+00:00

  17. 30.10.2026 14:08:08 · SISTEM · recompute

    latitude: 39.67159 → 39.67331 longitude: 24.27969 → 24.27988 time: 2026-10-30T11:00:48.119Z → 2026-10-30 11:00:48.127+00:00

  18. 30.10.2026 14:04:16 · EMSC · update

    latitude: 39.7 → 39.67 longitude: 24.2 → 24.26 time: 2026-10-30T10:59:56.700+00:00 → 2026-10-30T11:00:48.200+00:00

  19. 30.10.2026 14:03:57 · NOA · update

    latitude: 39.7232 → 39.67159 longitude: 24.26098 → 24.27969 magnitude: 3.4 → 3.7 time: 2026-10-30T10:59:57.755+00:00 → 2026-10-30T11:00:48.119+00:00

  20. 30.10.2026 14:03:57 · SISTEM · recompute

    latitude: 39.7232 → 39.67159 longitude: 24.26098 → 24.27969 magnitude: 3.4 → 3.7 time: 2026-10-30T10:59:57.755Z → 2026-10-30 11:00:48.119+00:00

  21. 30.10.2026 14:03:05 · SISTEM · recompute

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

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