M3.9 earthquake 136 km SW of Kýthira, Greece
A magnitude 3.9 earthquake struck 136 km SW of Kýthira, Greece on Tue, Sep 22, 1987, 12:26 PM GMT+3 (09:26 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.4 72 km WSW of Palaióchora, 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 (ML, local (Richter)), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1987-09-22 09:26:53 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 35.260° N, 21.940° 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: 4 in the 60 days after this one and 0 in the 30 days before it.
After
- 4.472 km WSW of Palaióchora, Greece · 14234 days ago · 10 km deep · 98 km away
- 4.290 km W of Palaióchora, Greece · 14233 days ago · 10 km deep · 68 km away
- 3.975 km S of Koróni, Greece · 14228 days ago · 33 km deep · 97 km away
- 4.3110 km WSW of Kýthira, Greece · 14222 days ago · 33 km deep · 57 km away
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00038kx. Read Thu, Oct 1, 2026, 2:16 PM UTC.