Shallow M5.7 earthquake hits offshore Sicily, Italy

A shallow M5.7 earthquake struck at 10:19 UTC on October 23, 2026, approximately 61 km (38 miles) west-northwest of Leni, Italy. The earthquake originated at a depth of 10.0 km (6.2 miles) and was recorded at coordinates 38.7°N, 14.2°E, according to the United States Geological Survey (USGS).

The epicenter is located offshore to the west-northwest of Leni, a municipality on the Aeolian Islands, north of Sicily. This area lies in the southern Tyrrhenian Sea region, which is characterized by several small islands and islets. The region has a low to moderate population density, with small coastal settlements nearby.

Critical infrastructure in the vicinity may include maritime routes, regional ports, and coastal roadways serving the islands and the northern coast of Sicily. Major highways and national transportation hubs are situated on the Sicilian mainland further to the south and east.

There is no tsunami threat associated with this earthquake, based on its offshore location and available data.

The significance index is 500 (on a scale that runs through 1 000), based on earthquake magnitude and estimated impact.

The Tyrrhenian Sea region, including nearby Sicily and the Aeolian Islands, is tectonically active due to the complex boundary between the African and Eurasian plates. Seismicity in this region is influenced by subduction processes and regional fault systems.

This information was last updated at 10:33 UTC on October 23, 2026.