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 Φεβρουαρίου 2023. Source: ⁨East Anatolian Fault⁩. Documented deaths: 56,697.

Documented Fatalities56,697Source: NOAA NCEI Significant Earthquake Database

Fault KinematicsStrike-Slip

Equivalent Energy7.56 Mt TNT

Μέγεθος

M 7.8

7.56 Mt TNT

Βάθος

20 km

shallow (Επιφανειακός φλοιικός)

Επίπτωση PAGER

red

> 1,000 fatalities

Τραυματίες: > 5,000 · ~57.6M αισθητός

Διαδραστικός χάρτης επικέντρου και ρηγμάτων

37.17°N, 37.08°E

Ρήγμα5 km

Ρήγμα της Ανατολικής Ανατολίας

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

Ανατολική Ανατολία και Καχραμανμαράς

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 χλμ (επιφανειακό)35–70 χλμ (ενδιάμεσο)>70 χλμ (βαθύ)Κύριος σεισμός

Πρόγνωση κινδύνου ML: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 οικισμοί

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

Town	Distance	Intensity	Πληθυσμός
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).

Περιφερειακό σεισμικό προφίλ

Ανατολική Ανατολία και Καχραμανμαράς

Δείτε ζωντανή σεισμική παρακολούθηση, ιστορικά μέτρα επικινδυνότητας, μοντέλα ολίσθησης ρηγμάτων και διαστήματα επανάληψης για αυτή τη ζώνη.

M 7.8 earthquake Gaziantep, Turkey

Historical Landmark Earthquake

Διαδραστικός χάρτης επικέντρου και ρηγμάτων

Seismic Activity & Aftershock Sequence

Situation Monitoring

Key facts so far

Agency Discrepancy Matrix (Cross-Network Verification)

Where it was felt

Tectonic setting

Ανατολική Ανατολία και Καχραμανμαράς

M 7.8 earthquake
Gaziantep, Turkey