Seismic Event Dossier•04:17 Local (01:17 UTC)(3y ago)

M 7.8 earthquake
Gaziantep, Turkey

A magnitude 7.8 (MW) earthquake occurred on 2023-02-06, 04:17 local time (01:17 UTC) (3y ago), centered 29 km W of Gaziantep (Turkey). The hypocenter was located at a shallow depth of 20 km. Primary telemetry verified by EMSC.

Historical Landmark Earthquake

#18 of All Time

Curated Global Seismic Archive (1700–Present)

Top-100 Earthquakes

A magnitude 7.8 earthquake struck ⁨Gaziantep, Turkey⁩ on 6 февраля 2023 г.. Source: ⁨East Anatolian Fault⁩. Documented deaths: 56,697.

Documented Fatalities56,697Source: NOAA NCEI Significant Earthquake Database

Fault KinematicsStrike-Slip

Equivalent Energy7.56 Mt TNT

Магнитуда

M 7.8

7.56 Mt TNT

Глубина

20 km

shallow (Мелкофокусное коровое)

Воздействие PAGER

red

> 1,000 fatalities

Пострадавшие: > 5,000 · ~57.6M ощутили

Интерактивная карта эпицентра и разломов

37.17°N, 37.08°E

Разлом5 km

Восточно-Анатолийский разлом

Strike-Slip · ~15.0 mm/yr

Felt byMMI III+

~57.6M exposed

~18.3M strong shaking

Primary SolutionEMSC

EMSC#us6000jllzreviewed

1 agencies reporting

Setting37.2°N

Восточная Анатолия и Кахраманмараш

Continental / Inland crustal

Seismic Activity & Aftershock Sequence

Timeline of foreshocks, main rupture, aftershocks and machine learning risk probability evolution.

Hover or tap a point to inspect aftershocks and risk probability curve.

<35 км (Опасные мелкие)35–70 км (Средние)>70 км (Глубокие)Главный толчок

ML Прогноз риска:12h37%24h49%72h64%7d80%

Situation Monitoring

Continuous verification

Multi-agency verification of casualties, tsunami alerts, and seismic sequence

Key facts so far

Casualties

Damage assessment in progress

Tsunami Status

No tsunami threat

NOAA PTWC & regional buoys

Citizen Felt Reports

3 182

Widely felt across region

Macroseismic DYFI verification

Aftershock Sequence

Aftershocks: 50

High Omori aftershock probability

LightGBM hazard model forecast

Multi-agency seismic telemetry active. Awaiting wire headlines.

Agency Discrepancy Matrix (Cross-Network Verification)

Comparing multi-network solutions from primary and teleseismic monitoring agencies.

Network / Source	Magnitude (Scale & Diff)	Depth & Diff	Epicenter & Shift (Δd)	Consensus	Event ID / Data
EMSC European-Mediterranean Seismological Centre · Global / EU	M7.8(Mw)Ref	20.0 kmRef	37.17°, 37.08°Origin	Authoritative	us6000jllz

Why do agency magnitudes differ? Seismological agencies use different instrumentation networks, crustal velocity models, and mathematical magnitude scales (e.g. Moment Magnitude Mw vs Local Richter ML vs Surface Wave Ms). Differences of 0.1–0.3 are common and reflect physical observation geometry rather than errors.

Where it was felt

6 населенных пунктов

Shaking intensity is modelled from magnitude, depth and distance (GMPE attenuation), not reported by residents.

Town	Distance	Intensity	Население
Gaziantep · Gaziantep	29 km	MMI IX	1,044,000
Kilis · Gaziantep	50 km	MMI IX	82,301
Kahramanmaraş · K. Maras	50 km	MMI IX	376,045
Izaz · Aleppo (Halab)	65 km	MMI VIII	31,534
İskenderun · Hatay	104 km	MMI VIII	297,943
Aleppo · Aleppo (Halab)	105 km	MMI VIII	2,738,000

Tectonic setting

Nearest mapped active fault: East Anatolian Fault, 5 km away, slip rate ~15.0 mm/yr (GEM Global Active Faults).

Сейсмический профиль региона

Восточная Анатолия и Кахраманмараш

Мониторинг в реальном времени, исторические ориентиры опасности, кинематика разломов и интервалы повторяемости для этой зоны.

M 7.8 earthquake Gaziantep, Turkey

Historical Landmark Earthquake

Интерактивная карта эпицентра и разломов

Seismic Activity & Aftershock Sequence

Situation Monitoring

Key facts so far

Agency Discrepancy Matrix (Cross-Network Verification)

Where it was felt

Tectonic setting

Восточная Анатолия и Кахраманмараш

M 7.8 earthquake
Gaziantep, Turkey