M3.9 earthquake 75 km S of Koróni, Greece
A magnitude 3.9 earthquake struck 75 km S of Koróni, Greece on Sun, Oct 18, 1987, 11:22 AM GMT+2 (09:22 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.7 20 km S of Methóni, 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), minor
- Local time
- UTC
- 1987-10-18 09:22:49 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 36.125° N, 22.112° 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: 5 in the 60 days after this one and 1 in the 30 days before it.
After
- 4.029 km S of Methóni, Greece · 14221 days ago · 79 km deep · 61 km away
- 4.3110 km WSW of Kýthira, Greece · 14217 days ago · 33 km deep · 46 km away
- 3.752 km S of Kýthira, Greece · 14208 days ago · 72 km deep · 99 km away
- 4.421 km SSW of Methóni, Greece · 14174 days ago · 48 km deep · 74 km away
- 4.720 km S of Methóni, Greece · 14170 days ago · 40 km deep · 69 km away
Before
Earthquakes todayGreece earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00039cf. Read Sat, Sep 26, 2026, 5:04 PM UTC.