M5.7 earthquake 12 km WNW of İvrindi, Turkey
A magnitude 5.7 earthquake struck 12 km WNW of İvrindi, Turkey on Tue, Feb 23, 1971, 9:41 PM GMT+2 (19:41 UTC), 10 km (6 mi) below the surface.
Map
Where this earthquake was located, with the others nearby. Select one for its page.
The earthquake
- Magnitude
- 5.7 (mw), moderate
- Local time
- UTC
- 1971-02-23 19:41:24 UTC
- Depth
- 10.0 km (6.2 mi), shallow
- Epicenter
- 39.606° N, 27.348° E
- Region
- Turkey
- Strongest shaking
- VII, very strong shaking
- Tsunami flag
- No
- Status
- Reviewed by a seismologist
Shaking
The USGS ShakeMap: shaking estimated from seismic stations and the quake’s size, on the Modified Mercalli intensity scale.
- Strongest estimated
- VII, very strong shaking
- Peak ground acceleration
- 28.6% of gravity
- Peak ground velocity
- 2.8 cm/s
- Map
- Automatic
Did you feel it?
No one has reported feeling this quake to the USGS.
How well it is located
Reviewed by a seismologist.
- Magnitude uncertainty
- ±0.22
- Depth from
- From location
Nearest places
Distance and direction from each place to the epicenter, with its forecast.
Nearby
Within 100 km, magnitude 2.7 and up: 0 in the 60 days after this one and 0 in the 30 days before it.
None recorded.
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Sources
From the USGS Earthquake Hazards Program and its partner networks, event iscgem787639. Read Thu, Sep 24, 2026, 2:59 PM UTC.