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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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3.4

Aegean Sea

30 October 2026, 17:30:01 (+03) 2026-10-30 14:30:01 UTC

4 sources: AFAD, KANDILLI, EMSC, NOA MLh
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Magnitude
3.4 MLh
Depth
16.0 km
Coordinates
39.6748, 24.1942
Data consistency
94/100

Regional activity (100 km)

Last 24 hours
2
Last 7 days
27
Last 30 days
225

Approximate energy released

≈ 1.9 t TNT

7.94e+9 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

252 earthquakes

By magnitude

  • M0 0
  • M1 80
  • M2 133
  • M3 31
  • M4 7
  • M5 1
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 68
  • 10–20 km 158
  • 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

Sources report different values.
Agency Magnitude Depth Time (UTC) Difference from master Original record
AFAD Deprem Dairesi
Ege Denizi
 3.3 ML 8.4 km 14:30:01.000 Δt 0.25 sn · 3.03 km · ΔM -0.1 Original record
Kandilli Rasathanesi (KOERI)
YUNANISTAN
 3.5 Mw 22.1 km 14:30:01.000 Δt 0.25 sn · 2.94 km · ΔM +0.1
EMSC-CSEM
AEGEAN SEA
 3.3 ml 12.0 km 14:30:01.370 Δt 0.12 sn · 1.33 km · ΔM -0.1 Original record
NOA – Institute of Geodynamics Displayed
Aegean Sea
 3.4 MLh 16.0 km 14:30:01.249 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 Boğaziçi Üniversitesi Kandilli Rasathanesi ve Deprem Araştırma Enstitüsü (KRDAE) Bölgesel Deprem-Tsunami İzleme ve Değerlendirme Merkezi — KRDAE 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. 04.11.2026 10:34:26 · KANDILLI · update

    depth: 20.9 → 22.1 latitude: 39.6937 → 39.6917 longitude: 24.1755 → 24.1678

  2. 30.10.2026 18:30:56 · NOA · update

    time: 2026-10-30T14:30:01.249+00:00 → 2026-10-30T14:30:01.248+00:00

  3. 30.10.2026 18:28:55 · NOA · update

    time: 2026-10-30T14:30:01.249+00:00 → 2026-10-30T14:30:01.248+00:00

  4. 30.10.2026 18:26:55 · NOA · update

    time: 2026-10-30T14:30:01.249+00:00 → 2026-10-30T14:30:01.248+00:00

  5. 30.10.2026 18:18:39 · NOA · update

    time: 2026-10-30T14:30:01.249+00:00 → 2026-10-30T14:30:01.248+00:00

  6. 30.10.2026 18:11:04 · NOA · update

    time: 2026-10-30T14:30:01.249+00:00 → 2026-10-30T14:30:01.248+00:00

  7. 30.10.2026 18:08:23 · NOA · update

    time: 2026-10-30T14:30:01.249+00:00 → 2026-10-30T14:30:01.248+00:00

  8. 30.10.2026 18:08:06 · EMSC · update

    time: 2026-10-30T14:30:01.290+00:00 → 2026-10-30T14:30:01.370+00:00

  9. 30.10.2026 18:04:11 · NOA · update

    time: 2026-10-30T14:30:01.249+00:00 → 2026-10-30T14:30:01.248+00:00

  10. 30.10.2026 17:55:21 · SISTEM · recompute

    source count: 3 → 4 confirming sources: afad,emsc,noa → afad,kandilli,emsc,noa

  11. 30.10.2026 17:54:20 · EMSC · update

    time: 2026-10-30T14:30:01.610+00:00 → 2026-10-30T14:30:01.290+00:00

  12. 30.10.2026 17:50:01 · EMSC · update

    time: 2026-10-30T14:30:01.840+00:00 → 2026-10-30T14:30:01.610+00:00

  13. 30.10.2026 17:49:49 · SISTEM · recompute

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

  14. 30.10.2026 17:47:49 · SISTEM · recompute

    depth: 10 → 15.96 latitude: 39.67038 → 39.67484 longitude: 24.22164 → 24.19418 magnitude: 3.3 → 3.4 time: 2026-10-30T14:30:01.547Z → 2026-10-30 14:30:01.249+00:00

  15. 30.10.2026 17:47:49 · NOA · update

    depth: 10 → 15.96 latitude: 39.67038 → 39.67484 longitude: 24.22164 → 24.19418 magnitude: 3.3 → 3.4 time: 2026-10-30T14:30:01.547+00:00 → 2026-10-30T14:30:01.248+00:00

  16. 30.10.2026 17:43:44 · EMSC · update

    depth: 10 → 12 latitude: 39.6704 → 39.67 longitude: 24.2216 → 24.18 time: 2026-10-30T14:30:02.230+00:00 → 2026-10-30T14:30:01.840+00:00

  17. 30.10.2026 17:42:43 · EMSC · update

    magnitude: 3.4 → 3.3 time: 2026-10-30T14:30:02.300+00:00 → 2026-10-30T14:30:02.230+00:00

  18. 30.10.2026 17:39:47 · NOA · update

    time: 2026-10-30T14:30:01.547+00:00 → 2026-10-30T14:30:01.546+00:00

  19. 30.10.2026 17:37:44 · NOA · update

    time: 2026-10-30T14:30:01.547+00:00 → 2026-10-30T14:30:01.546+00:00

  20. 30.10.2026 17:35:06 · EMSC · update

    time: 2026-10-30T14:30:01.930+00:00 → 2026-10-30T14:30:02.300+00:00

  21. 30.10.2026 17:33:59 · EMSC · update

    time: 2026-10-30T14:30:01.547+00:00 → 2026-10-30T14:30:01.930+00:00

  22. 30.10.2026 17:33:45 · NOA · update

    latitude: 39.66688 → 39.67038 longitude: 24.22422 → 24.22164 magnitude: 3.4 → 3.3 time: 2026-10-30T14:30:01.512+00:00 → 2026-10-30T14:30:01.546+00:00

  23. 30.10.2026 17:33:45 · SISTEM · recompute

    latitude: 39.66688 → 39.67038 longitude: 24.22422 → 24.22164 magnitude: 3.4 → 3.3 time: 2026-10-30T14:30:01.512Z → 2026-10-30 14:30:01.547+00:00

  24. 30.10.2026 17:32:55 · SISTEM · recompute

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

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