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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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2.1

Marmara Denizi - [09.59 km] Şarköy (Tekirdağ)

21 October 2026, 22:45:44 (+03) 2026-10-21 19:45:44 UTC

3 sources: AFAD, KANDILLI, EMSC ML
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Magnitude
2.1 ML
Depth
7.0 km
Coordinates
40.7268, 27.4440
Data consistency
94/100

Regional activity (100 km)

Last 24 hours
2
Last 7 days
34
Last 30 days
112

Approximate energy released

≈ 0 t TNT

8.91e+7 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

141 earthquakes

By magnitude

  • M0 16
  • M1 99
  • M2 24
  • M3 2
  • M4 0
  • M5 0
  • M6 0
  • M7 0
  • M8+ 0

By depth

  • 0–10 km 92
  • 10–20 km 47
  • 20–40 km 2
  • 40–70 km 0
  • 70–150 km 0
  • 150+ km 0

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 Displayed
Marmara Denizi - [09.59 km] Şarköy (Tekirdağ)
 2.1 ML 7.0 km 19:45:44.000 Δt 0 sn · 0 km · ΔM 0 Original record
Kandilli Rasathanesi (KOERI)
GUZELKOY ACIKLARI-TEKIRDAG (MARMARA DENIZI)
 2.2 ML 6.7 km 19:45:43.000 Δt 1 sn · 2.54 km · ΔM +0.1
EMSC-CSEM
WESTERN TURKEY
 2.2 ml 7.0 km 19:45:44.060 Δt 0.06 sn · 0 km · ΔM +0.1 Original record

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

Revision history

  1. 21.10.2026 22:59:19 · SISTEM · recompute

    depth: 6.7 → 7 latitude: 40.7045 → 40.72683 longitude: 27.4507 → 27.444 magnitude: 2.2 → 2.1 time: 2026-10-21T19:45:43.000Z → 2026-10-21 19:45:44.000+00:00 source count: 2 → 3 confirming sources: kandilli,emsc → afad,kandilli,emsc preferred source: 2 → 1

  2. 21.10.2026 22:58:57 · EMSC · update

    depth: 6.7 → 7 latitude: 40.7045 → 40.7268 longitude: 27.4507 → 27.444 time: 2026-10-21T19:45:43.900+00:00 → 2026-10-21T19:45:44.060+00:00

  3. 21.10.2026 22:55:51 · SISTEM · recompute

    time: 2026-10-21T19:45:43.900Z → 2026-10-21 19:45:43.000+00:00 source count: 1 → 2 magnitude type: ml → ML confirming sources: emsc → kandilli,emsc preferred source: 3 → 2

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