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M5.5 Earthquake near Istanbul (Turkey)

UTC time: 2025-04-23 09:49:11 UTC Local time: —
Earthquake newsQuakeMap24
Archive record · original publication time was not recorded

Automatically generated from measurement data by QuakeMap24. Values may change after further analysis.

Map

M5.5 Earthquake near Istanbul (Turkey) · 2025-04-23 — Map showing the location of the epicenter
M5.5 Earthquake near Istanbul (Turkey) · 2025-04-23 — Map showing the location of the epicenter

About this earthquake

A magnitude M5.5 earthquake was recorded near Istanbul (Turkey) on April 23, 2025 at 09:49 UTC. The hypocenter lay relatively close to the surface at around 10 km, increasing how strongly it was felt. Earthquakes of this magnitude can damage poorly built structures.

The event was recorded by USP. Turkey: 51 earthquakes were recorded in the past 24 hours, the strongest reaching M5.2.

Details

ID
f2a0ad11f482ed55a5b9360d424b331c6f742fab
Magnitude
M5.5
Depth
10.0 km
UTC time
2025-04-23 09:49:11 UTC
Local time
—
Country
Turkey
State
Istanbul
City
Istanbul
Source
usp
Coordinates
40.85578, 28.29899

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
10 km — close to the regional average (8.6 km)
Regional average: 8.6 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
Siliviri24.7 kmN53'167
Büyükçekmece30.2 kmNE163'140
Esenyurt37.0 kmNE983'571

GeoNames · CC BY 4.0

Volcanoes nearby

  • Kula
    Distance: 254 km ·Volcanic field ·Elevation: 750 m ·Turkiye
  • Nisyros
    Distance: 485 km ·Stratovolcano ·Elevation: 698 m ·Last eruption: 1888 ·Greece

Radius · 100 km

Nearby infrastructure

Up to 3 nearest sites per category

Airports

  • Tekirdağ Çorlu AirportTurkey · TEQ · LTBU
    44.8 kmStraight-line distance
  • İstanbul AirportTurkey · IST · LTFM
    59.1 kmStraight-line distance
  • Istanbul Sabiha Gökçen International AirportTurkey · SAW · LTFJ
    85.1 kmStraight-line distance

Source: OurAirports · Dataset date: 2026-10-04

This selection shows geographic proximity, not a hazard zone or confirmed impacts. Distances use recorded site coordinates. Sources & data dates

Subsequent earthquakes nearby

Events recorded after this earthquake within 150 km. They are not automatically classified as aftershocks.

First 6 hours37
First 24 hours65
First 72 hours66
Strongest subsequent eventM5.5
M4.42025-04-23 09:59:29 UTC4.5 kmWESTERN TURKEY M5.52025-04-23 10:02:36 UTC25.9 kmWESTERN TURKEY M2.92025-04-23 13:25:16 UTC8.7 kmWESTERN TURKEY M3.02025-04-23 13:29:10 UTC5.6 kmWESTERN TURKEY M2.22025-04-23 13:32:08 UTC6.7 kmWESTERN TURKEY M1.32025-04-23 13:34:17 UTC10.6 kmWESTERN TURKEY M2.72025-04-23 13:45:37 UTC12.5 kmWESTERN TURKEY M1.82025-04-23 13:53:10 UTC7.2 kmWESTERN TURKEY M2.42025-04-23 13:55:25 UTC2.1 kmWESTERN TURKEY M1.52025-04-23 13:57:28 UTC3.1 kmWESTERN TURKEY M3.02025-04-23 13:59:56 UTC19.5 kmWESTERN TURKEY M2.92025-04-23 13:59:57 UTC22.1 kmWESTERN TURKEY

Turkey

Context for this earthquake

04 Oct 2025 – 04 Oct 2026 · M ≥ 3.0 · 1,119 Catalogue entries

Sufficiently reliable matching data are not currently available for a direct comparison. The area profile shows the available records and their limitations.

Open seismic profile

Historic earthquake map · Turkey

Open history map
Explore recent and long-term earthquake activity in this country. Use filters to narrow down by magnitude, depth, and date range.

Country statistics · Turkey

Country overview
View earthquake KPIs, strongest and latest events, and averages for this country.

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