M4.0 earthquake 103 km SSW of Pýrgos, Greece
A magnitude 4.0 earthquake struck 103 km SSW of Pýrgos, Greece on Sat, Dec 22, 1973, 4:35 AM GMT+2 (02:35 UTC), 33 km (21 mi) below the surface.
A larger quake followed: M5.2 42 km SSW of Tympáki, 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, body-wave), light
- Magnitude from
- USGS National Earthquake Information Center
- Local time
- UTC
- 1973-12-22 02:35:15 UTC
- Depth
- 33.0 km (20.5 mi), shallow
- Epicenter
- 34.119° N, 24.819° 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
- Stations used
- 10
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 0 in the 30 days before it.
After
Earthquakes todayGreece earthquakesLive radar here
Sources
From the USGS Earthquake Hazards Program and its partner networks, event usp00004m5. Read Fri, Oct 2, 2026, 4:57 PM UTC.