M3.3 earthquake 9 km NE of Ýdra, Greece
A magnitude 3.3 earthquake struck 9 km NE of Ýdra, Greece on Fri, Apr 21, 1989, 4:51 PM GMT+3 (13:51 UTC), 21 km (13 mi) below the surface.
A larger quake followed: M4.1 17 km NE of Sykiá, Greece. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.3 (ML, local (Richter)), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1989-04-21 13:51:37 UTC
- Depth
- 21.1 km (13.1 mi), shallow
- Epicenter
- 37.397° N, 23.554° E
- Region
- Greece
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Depth from
- FROM_LOCATION
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 4 in the 60 days after this one and 0 in the 30 days before it.
After
Earthquakes todayGreece earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0003u6x. Read Sun, Oct 4, 2026, 4:19 PM UTC.