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M6.6 Depth: 10.0 km

M6.6 Earthquake

UTC time: 2025-04-23 09:49:11 UTC Local time: —

About this earthquake

On April 23, 2025 at 09:49 UTC, a magnitude M6.6 earthquake occurred near Earthquake location (40.84, 28.142). The hypocenter lay relatively close to the surface at around 10 km, increasing how strongly it was felt. Events of this size are considered strong and can be dangerous in inhabited regions.

The data is provided by NNSN and cross-checked across seismological networks.

Details

Magnitude
M6.6
Depth
10.0 km
UTC time
2025-04-23 09:49:11 UTC
Local time
—
Country
—
Source
nnsn
Coordinates
40.84000, 28.14200

Map

Depth profile

Depth profile Depth: 10 km (Shallow) Surface Shallow Intermediate Deep 0 km 70 km 300 km 700 km 10 km
Shallow
10 km
Why depth matters

Shallow quakes release energy near the surface — shaking is felt more strongly and damage potential is higher.

Depth classes per USGS

Nearby population centers

Distances are straight-line distances from the epicenter. Population data: GeoNames.

PlaceDistanceDirectionPopulation
Siliviri27.5 kmN53'167
Büyükçekmece42.3 kmNE163'140
Küçükçekmece55.5 kmE792'030

GeoNames · CC BY 4.0

Volcanoes nearby

  • Kula
    Distance: 253 km ·Volcanic field ·Elevation: 750 m ·Turkiye
  • Nisyros
    Distance: 480 km ·Stratovolcano ·Elevation: 698 m ·Last eruption: 1888 ·Greece

Subsequent earthquakes nearby

Events recorded after this earthquake within 250 km. They are not automatically classified as aftershocks.

First 6 hours38
First 24 hours66
First 72 hours69
Strongest subsequent eventM5.5
M4.42025-04-23 09:59:29 UTC16.7 kmWESTERN TURKEY M5.52025-04-23 10:02:36 UTC38.7 kmWESTERN TURKEY M2.92025-04-23 13:25:16 UTC7.9 kmWESTERN TURKEY M3.02025-04-23 13:29:10 UTC18.6 kmWESTERN TURKEY M2.22025-04-23 13:32:08 UTC19.6 kmWESTERN TURKEY M1.32025-04-23 13:34:17 UTC23.6 kmWESTERN TURKEY M2.72025-04-23 13:45:37 UTC25.3 kmWESTERN TURKEY M1.82025-04-23 13:53:10 UTC20.1 kmWESTERN TURKEY M2.42025-04-23 13:55:25 UTC12.0 kmWESTERN TURKEY M1.52025-04-23 13:57:28 UTC11.7 kmWESTERN TURKEY M3.02025-04-23 13:59:56 UTC6.6 kmWESTERN TURKEY M2.92025-04-23 13:59:57 UTC8.8 kmWESTERN TURKEY

Historical context nearby

Comparison with recorded earthquakes before this event within 250 km.

Magnitude rank#1
Earlier events M≥45
Earlier events M≥54
Compared since2025-01-21

The QuakeMap24 comparison dataset begins on 2024-03-23. Earlier earthquakes may not be included.

Strongest earlier events

M6.22025-04-23 09:49:10 UTC0.1 km21 km SE of Marmara Ereğlisi, Turkey M5.72025-04-23 09:49:09 UTC21.7 kmIstanbul M5.12025-01-21 20:38:44 UTC207.2 kmDalyan M5.02025-01-21 20:38:43 UTC219.4 km4 km SW of Behram, Turkey M4.02025-04-21 17:24:39 UTC189.2 km18 km N of Simav, Turkey

Stats (last 24h)

Global (24h)
558
Country (24h)
—
—
Current earthquakes in
Magnitude Place Local time
No recent events available.

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