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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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3.3

Aegean Sea

30 October 2026, 14:20:21 (+03) 2026-10-30 11:20:21 UTC

3 sources: KANDILLI, EMSC, NOA MLh
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Magnitude
3.3 MLh
Depth
16.4 km
Coordinates
39.6877, 24.2189
Data consistency
89/100

Regional activity (100 km)

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

Approximate energy released

≈ 1.3 t TNT

5.62e+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

248 earthquakes

By magnitude

  • M0 0
  • M1 77
  • M2 133
  • M3 31
  • M4 6
  • M5 1
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 68
  • 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

Sources report different values.
Agency Magnitude Depth Time (UTC) Difference from master Original record
Kandilli Rasathanesi (KOERI)
YUNANISTAN
 3.6 Mw 23.0 km 11:20:22.000 Δt 0.73 sn · 6.72 km · ΔM +0.3
EMSC-CSEM
AEGEAN SEA
 3.2 ml 11.0 km 11:20:21.190 Δt 0.08 sn · 1.14 km · ΔM -0.1 Original record
NOA – Institute of Geodynamics Displayed
Aegean Sea
 3.3 MLh 16.4 km 11:20:21.274 Δt 0 sn · 0 km · ΔM 0

This value summarises agreement between sources; it is not a measure of scientific accuracy. 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 10:34:28 · KANDILLI · update

    depth: 23.3 → 23 latitude: 39.753 → 39.7475 longitude: 24.206 → 24.2073 magnitude: 3.5 → 3.6

  2. 30.10.2026 16:22:48 · EMSC · update

    depth: 16.4 → 11 latitude: 39.6877 → 39.68 longitude: 24.2189 → 24.21 magnitude: 3.3 → 3.2 time: 2026-10-30T11:20:21.300+00:00 → 2026-10-30T11:20:21.190+00:00

  3. 30.10.2026 15:19:01 · EMSC · update

    time: 2026-10-30T11:20:21.140+00:00 → 2026-10-30T11:20:21.300+00:00

  4. 30.10.2026 14:53:07 · EMSC · update

    time: 2026-10-30T11:20:21.540+00:00 → 2026-10-30T11:20:21.140+00:00

  5. 30.10.2026 14:36:10 · EMSC · update

    depth: 10 → 16.4 latitude: 39.6817 → 39.6877 longitude: 24.2084 → 24.2189 time: 2026-10-30T11:20:22.610+00:00 → 2026-10-30T11:20:21.540+00:00

  6. 30.10.2026 14:35:41 · SISTEM · recompute

    depth: 10 → 16.39 latitude: 39.68167 → 39.68765 longitude: 24.20838 → 24.2189 time: 2026-10-30T11:20:22.259Z → 2026-10-30 11:20:21.274+00:00

  7. 30.10.2026 14:35:41 · NOA · update

    depth: 10 → 16.39 latitude: 39.68167 → 39.68765 longitude: 24.20838 → 24.2189 time: 2026-10-30T11:20:22.259+00:00 → 2026-10-30T11:20:21.274+00:00

  8. 30.10.2026 14:34:08 · EMSC · update

    time: 2026-10-30T11:20:22.460+00:00 → 2026-10-30T11:20:22.610+00:00

  9. 30.10.2026 14:31:53 · EMSC · update

    time: 2026-10-30T11:20:22.259+00:00 → 2026-10-30T11:20:22.460+00:00

  10. 30.10.2026 14:31:53 · SISTEM · recompute

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

  11. 30.10.2026 14:27:47 · SISTEM · recompute

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

  12. 30.10.2026 14:27:27 · NOA · update

    latitude: 39.69815 → 39.68167 longitude: 24.19239 → 24.20838 time: 2026-10-30T11:20:22.053+00:00 → 2026-10-30T11:20:22.259+00:00

  13. 30.10.2026 14:27:27 · SISTEM · recompute

    latitude: 39.69815 → 39.68167 longitude: 24.19239 → 24.20838 time: 2026-10-30T11:20:22.053Z → 2026-10-30 11:20:22.259+00:00

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