M3.2 earthquake 28 km SSE of Spétses, Greece
A magnitude 3.2 earthquake struck 28 km SSE of Spétses, Greece on Sun, Aug 18, 1991, 12:31 PM GMT+3 (09:31 UTC), 10 km (6 mi) below the surface.
A larger quake followed: M4.0 3 km ENE of Megalochóri, Greece. This one was a foreshock.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 3.2 (Md, duration), minor
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1991-08-18 09:31:35 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 37.022° N, 23.261° 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 3 in the 30 days before it.
After
- 3.513 km ENE of Trípoli, Greece · 12814 days ago · 33 km deep · 88 km away
- 4.03 km ENE of Megalochóri, Greece · 12806 days ago · 171 km deep · 79 km away
- 3.55 km ENE of Póros, Greece · 12774 days ago · 10 km deep · 59 km away
Before
Earthquakes todayGreece earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp0004vhz. Read Sat, Oct 3, 2026, 1:08 AM UTC.