Turkey earthquakes

M5.8 earthquake 10 km ENE of Seferihisar, Turkey

A magnitude 5.8 earthquake struck 10 km ENE of Seferihisar, Turkey on Thu, Apr 10, 2003, 3:40 AM GMT+3 (00:40 UTC), 10 km (6 mi) below the surface.

Seferihisar forecast More in Turkey

Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude: 5.8 (Mwb, body-wave moment), moderate
Magnitude from: USGS National Earthquake Information Center
Local time: Thu, Apr 10, 2003, 3:40 AM GMT+3
UTC: 2003-04-10 00:40:15 UTC
Depth: 10.0 km (6.2 mi), shallow
Epicenter: 38.221° N, 26.958° E
Region: Turkey
Strongest shaking: VII, very strong shaking
Tsunami flag: No
Status: Reviewed by a seismologist

Magnitude estimates

Different scales measure different things and differ by a few tenths. The USGS marks one as preferred, and it is the one this page uses.

Mag.	Scale	Computed by	Notes
5.8	Mwb, body-wave moment	USGS National Earthquake Information Center	Preferred · Reviewed
5.7	Mw, moment	ISC-GEM global catalog	Final · ±0.1
5.7	Mwc, centroid moment	Global CMT project	Preliminary

Deaths and damage

From NOAA NCEI’s Significant Earthquake Database (record 5690), matched to this event by time and place.

Injuries: 90
Damage: Moderate (about $1 to $5 million)
Houses destroyed: Some (about 51 to 100)
Houses damaged: Some (about 51 to 100)

Where the literature gives no number, NCEI records a description on a scale of 1 to 4, printed here in its words. Damage is in millions of US dollars of the year of the event, not adjusted for inflation.

NOAA’s full record of this earthquake

What happened

The USGS’s account of the effects of this earthquake.

At least 90 people injured and some buildings damaged at Izmir. Several houses collapsed and some buildings damaged at Seferihisar. Felt strongly in the Izmir-Seferihisar-Urla area.

From the USGS event page for usp000buu9. U.S. Geological Survey text and figures are in the public domain.

Shaking

The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.

Strongest estimated: VII, very strong shaking
Peak ground acceleration: 29.1% of gravity
Peak ground velocity: 2.9 cm/s
Map: Automatic

USGS ShakeMap: estimated shaking intensity around the epicenter — Estimated shaking intensity. Map: USGS ShakeMap.

Did you feel it?

No one has reported feeling this quake to the USGS.

Fault motion and ground failure

How the rock slipped, from the moment tensor, and the USGS estimate of landslides and liquefaction.

Faulting: Strike-slip
Nodal plane 1: Strike 155°, dip 70°, rake -15°
Nodal plane 2: Strike 250°, dip 76°, rake -160°

How well it is located

Reviewed by a seismologist.

Depth from: OPERATOR_ASSIGNED
Station coverage gap: 15°
Stations used: 471

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 2.8 and up: 25 in the 60 days after this one and 5 in the 30 days before it.

After

Before

Earthquakes today Turkey earthquakes Live radar here

Sources

From the USGS Earthquake Hazards Program and its partner networks, event usp000buu9 (also filed as gcmtb041003a, gcmt20030410004015, atlas20030410004017, iscgem6690174). Read Thu, Oct 1, 2026, 2:35 AM UTC.