M3.9 earthquake 4 km SW of Elefsína, Greece

A magnitude 3.9 earthquake struck 4 km SW of Elefsína, Greece on Fri, Sep 28, 1990, 12:10 AM GMT+3 (21:10 UTC), 172 km (107 mi) below the surface.

A larger quake followed: M4.1 8 km SW of Kaparéllion, Greece. This one was a foreshock.

Map

Where this earthquake was located, with the others nearby. Select one for its page.

No one has reported feeling this quake to the USGS.

Distance and direction from each place to the epicenter, with its forecast.

Within 100 km, magnitude 1.5 and up: 9 in the 60 days after this one and 4 in the 30 days before it.

From the USGS Earthquake Hazards Program and its partner networks, event usp0004f4m. Read Fri, Oct 2, 2026, 10:06 AM UTC.