# Seismic activity in Evia, Greece

> Live situation record from CLSTR: https://clstr.news/situations/seismic-activity-in-evia-greece
> Updated: 2026-09-18T06:47:00.000Z. Sources: 18. Developments: 2.

In mid-September 2026, the northern Evia region of Greece experienced a series of earthquakes with magnitudes ranging between 4.0 and 4.3. The tremors, occurring near Prokopio and Vasilika Istrias, were felt as far as Attica and Athens.

Seismologists from the Geodynamic Institute are monitoring the sequence to determine if the events constitute a continuing sequence or follow a mainshock. Euthymios Lekkas, President of OASP, noted that while activity has increased, the area is not typically subject to significantly larger magnitudes. No immediate injuries or significant structural damage have been confirmed.

## Claims

- The earthquake was felt in Attica and Athens. (corroborated by 2 sources)
- An earthquake occurred at 09:42 AM on Friday, September 18, 2026. (single source)
- The epicenter was located 5 km south/southeast of Vasilika Istiaias. (single source)
- The focal depth was estimated at 16.8 kilometers. (single source)
- The earthquake magnitude was initially recorded as 4.2 Richter. (single source)
- The Euro-Mediterranean Seismological Centre determined the magnitude to be 4.3 Richter. (single source)
- Professor Evthymios Lekkas stated the area is not typically subject to larger seismic events. (single source)

## Timeline

### 2026-09-18: Evia experiences series of earthquakes up to 4.3 magnitude

A series of earthquakes measuring between 4.0 and 4.3 Richter were recorded in northern Evia, Greece, being felt in Attica and Athens. Experts are monitoring the seismic sequence.

13 sources. https://clstr.news/cluster/evia-earthquake-strikes-northern-greece-felt-in-athens

### 2026-09-12: Cephalonia earthquake: 4.9 magnitude tremor strikes near Ionian Islands

A 4.9 magnitude earthquake struck near Cephalonia on Saturday night. While aftershocks continue in the Ionian Sea, no immediate damage or injuries have been reported.

8 sources. https://clstr.news/cluster/cephalonia-earthquake-strikes-off-the-coast-of-greece

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Cite as: Seismic activity in Evia, Greece. CLSTR, https://clstr.news/situations/seismic-activity-in-evia-greece