7 February 2023
First images of landslides from the 6 February 2023 Turkey-Syria earthquakes
The true horror of the major Turkey-Syria earthquakes yesterday is beginning to unfold. With over 4,300 people now known to have died, but many more likely to be missing, this has been a very serious event. Most of the footage continues to feature collapses in the urban areas, with very little from the more rural areas. The picture in the more remote parts of the epicentral zone is likely to be desperate.
Meanwhile. as expected, images are starting to emerge of landslides triggered by the event. In common with other events, at the moment these focus on the roads, probably because the slides themselves are a barrier to reaching the upland zones.
On Twitter, Sokagin Sesi Gazetesi has tweeted a short video of a large failure on a riverbank; the text suggests that this is on the road between Adana and Gaziantep:-
DEPREM SONRASI ADANA GAZİANTEP YOLU! pic.twitter.com/7T05gVOHt0
— Sokagin Sesi Gazetesi (@sokaginsesigaz1) February 6, 2023
The image below is a still from the video:-
This appears to be a lateral spread failure on a very large scale. The road bed could be fill?
Yol yaptı… pic.twitter.com/i9JbVbBEaH
— Erk Acarer (@eacarer) February 6, 2023
The location of this failure is not clear, but once again this could well be a lateral spread.
Meanwhile, the USGS has continued to update its model of the landslide probability for the Turkey-Syria earthquakes. This is the map for the Mw=7.8 event:-
And this is the one for the Mw=7.5 event that occurred a few hours later:-
Unfortunately, the epicentral area was cloudy yesterday, so there is no visible satellite imagery as yet of the earthquake-affected areas. The forecast today is better, and tomorrow is good, so images should start to become available. Note though that the forecast night time temperature in Gaziantep is -6° C tonight, and will be lower in the upland areas. These temperatures are likely to be magnifying the human the impact of the Turkey-Syria earthquakes.