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5d ago

6.2-Magnitude Earthquake Strikes Near Istanbul, Followed by Aftershocks

The shallow quake in the Sea of Marmara caused no immediate damage or injuries but prompted widespread concern and official advisories.

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The Marmara sea entering the Bosphorus Strait in Istanbul, Turkey.
A working seismograph is shown in a display about earthquakes.
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Overview

  • A magnitude 6.2 earthquake struck 25 miles southwest of Istanbul in the Sea of Marmara early on April 23, 2025.
  • The quake had a shallow depth of about 6 miles, according to the United States Geological Survey.
  • Several aftershocks followed, the largest measuring 5.3, heightening concerns in the region.
  • Turkey's Disaster and Emergency Management Agency (AFAD) urged residents to stay away from buildings as a precaution.
  • The tremors were felt in neighboring areas, but there were no immediate reports of damage or injuries.