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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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2.5

KOS ADASI (EGE DENIZI)

11 October 2026, 05:41:46 (+03) 2026-10-11 02:41:46 UTC

3 sources: KANDILLI, EMSC, NOA ML
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Magnitude
2.5 ML
Depth
137.4 km
Coordinates
36.6592, 26.9053
Data consistency
90/100

Regional activity (100 km)

Last 24 hours
4
Last 7 days
17
Last 30 days
114

Approximate energy released

≈ 0.1 t TNT

3.55e+8 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

152 earthquakes

By magnitude

  • M0 2
  • M1 81
  • M2 59
  • M3 10
  • M4 0
  • M5 0
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 76
  • 10–20 km 43
  • 20–40 km 14
  • 40–70 km 7
  • 70–150 km 10
  • 150+ km 2

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) Displayed
KOS ADASI (EGE DENIZI)
 2.5 ML 137.4 km 02:41:46.000 Δt 0 sn · 0 km · ΔM 0
EMSC-CSEM
DODECANESE ISLANDS, GREECE
 2.4 ml 128.6 km 02:41:47.080 Δt 1.08 sn · 6.95 km · ΔM -0.1 Original record
NOA – Institute of Geodynamics
Dodecanese Islands, Greece
 2.6 MLh 140.0 km 02:41:46.596 Δt 0.6 sn · 4.71 km · ΔM +0.1

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. 11.10.2026 10:45:11 · EMSC · update

    depth: 137.4 → 128.6 latitude: 36.6592 → 36.6978 longitude: 26.9053 → 26.9666 magnitude: 2.5 → 2.4 time: 2026-10-11T02:41:46.400+00:00 → 2026-10-11T02:41:47.080+00:00

  2. 11.10.2026 05:50:17 · SISTEM · recompute

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

  3. 11.10.2026 05:50:15 · SISTEM · recompute

    depth: 140.03 → 137.4 latitude: 36.62018 → 36.6592 longitude: 26.88446 → 26.9053 magnitude: 2.6 → 2.5 time: 2026-10-11T02:41:46.596Z → 2026-10-11 02:41:46.000+00:00 source count: 1 → 2 magnitude type: MLh → ML confirming sources: noa → kandilli,noa preferred source: 6 → 2

  4. 11.10.2026 05:49:50 · NOA · update

    depth: 65.48 → 140.03 latitude: 36.48415 → 36.62018 longitude: 26.33703 → 26.88446 time: 2026-10-11T02:41:56.137+00:00 → 2026-10-11T02:41:46.596+00:00

  5. 11.10.2026 05:49:50 · SISTEM · recompute

    depth: 65.48 → 140.03 latitude: 36.48415 → 36.62018 longitude: 26.33703 → 26.88446 time: 2026-10-11T02:41:56.137Z → 2026-10-11 02:41:46.596+00:00

  6. 11.10.2026 05:45:42 · NOA · update

    magnitude: 2.3 → 2.6

  7. 11.10.2026 05:45:42 · SISTEM · recompute

    magnitude: 2.3 → 2.6

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