M4.0 earthquake 46 km SSW of Mandráki, Greece
A magnitude 4.0 earthquake struck 46 km SSW of Mandráki, Greece on Sun, Aug 23, 1987, 4:30 AM GMT+3 (01:30 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M4.2 18 km NE of Karpathos, Greece. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 4.0 (mb), light
- Local time
- UTC
- 1987-08-23 01:30:39 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 36.239° N, 26.894° 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: 3 in the 60 days after this one and 1 in the 30 days before it.
After
- 3.910 km S of Datça, Turkey · 14267 days ago · 112 km deep · 83 km away
- 3.98 km WSW of Mandráki, Greece · 14264 days ago · 150 km deep · 40 km away
- 4.218 km NE of Karpathos, Greece · 14263 days ago · 72 km deep · 79 km away
Before
Earthquakes todayGreece earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00037rb. Read Tue, Sep 22, 2026, 4:11 PM UTC.