M3.9 earthquake 104 km S of Kastrí, Greece
A magnitude 3.9 earthquake struck 104 km S of Kastrí, Greece on Tue, Sep 29, 1987, 9:33 PM GMT+2 (19:33 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.2 78 km SE of Kastrí, Greece. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.9 (mb, body-wave), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1987-09-29 19:33:50 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 33.893° N, 23.970° 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
- OPERATOR_ASSIGNED
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 1.5 and up: 1 in the 60 days after this one and 1 in the 30 days before it.
After
Before
Earthquakes todayGreece earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00038ue. Read Sun, Oct 4, 2026, 4:44 AM UTC.