2025 Crete Earthquake

On 22 May 2025, a magnitude 6.1 earthquake occurred off the coast of the Greek island of Crete. The earthquake was felt in some regions of Greece and Türkiye but did not result in any loss of life or major structural damage.

Visual depicting the magnitude 6.1 earthquake off the coast of Crete (generated by artificial intelligence) 

Key Characteristics of the Earthquake

The earthquake occurred on Thursday, 22 May 2025, at 06:19 local time. The epicenter was determined to be near the eastern coast of Crete, approximately 56 to 81 kilometers northeast of the town of Neapolis, in the Aegean Sea. The focal depth was measured between 40 and 60 kilometers. The Institute of Geodynamics in Athens reported the earthquake’s magnitude as 6.1.

The earthquake exhibits a characteristics typical of an intermediate-depth event, with seismic energy estimated at approximately 8.9 x 10¹³ joules (24.8 gigawatt-hours). This energy equivalent corresponds to roughly 1.3 Hiroshima-type atomic bombs. The epicenter coordinates are 35.701° north latitude and 25.9067° east longitude.

Perceived Area and Aftershock

The earthquake was felt across Crete as well as in Attica, the Peloponnese Peninsula, the Cyclades Islands, and along the western coasts of Türkiye. The United States Geological Survey (USGS) estimated that approximately 1.5 million people may have felt the shaking, with 910,000 located in Greece and 610,000 in Türkiye. About 15 minutes later, an aftershock of magnitude 3.1 occurred in the same region. The focal point of the aftershock was located 53 kilometers north of Neapolis at a depth of 59.4 kilometers.

Damage Assessment and Emergency Management

The İzmir Governorate announced that no adverse effects were detected along the Turkish coastline following the earthquake and that survey operations in the region continued under the coordination of AFAD. Greek authorities also reported no significant structural damage or casualties after the event. According to the Modified Mercalli Intensity Scale, the earthquake was felt at a maximum intensity of V (moderate). Structurally, it was noted that settlements in the region consist of mixed building types with varying levels of seismic resistance.

Tsunami Risk and Emergency Preparedness

No tsunami warning was issued following the earthquake, although regional alert systems were temporarily activated. Experts have indicated that intermediate-depth earthquakes along the Hellenic Arc have limited potential to generate tsunamis. Efthimios Lekkas, President of the Greek National Centre for Emergency Planning, confirmed after the event that there was no tsunami risk.

Sismotectonic Context

The region where the earthquake occurred lies within normal fault zones of the Hellenic Arc. Experts have stated that this earthquake is not directly related to other seismic events that occurred earlier in the same year near Istanbul or Santorini. Earthquakes near Santorini are linked to volcanic activity, while those in Türkiye are associated with the North Anatolian Fault Zone. The area around Crete, by contrast, exhibits a distinct geological and sismotectonic structure.