Magnitude 7.8 earthquake, but then less than 12 hours later, a second 7.6 magnitude tremor struck the same region, there also been more than 100 after shocks.
Most buildings survived the first quake, it was the second quake that knocked them down.
https://www.aljazeera.com/news/2023/...n-live-tracker
And of course, the aftershocks..
https://www.aljazeera.com/news/2023/...n-the-past-day
"Since February 6, at least 81 magnitude-4 quakes, 20 magnitude-5 quakes, three magnitude-6 quakes, and two magnitude-7 quakes have been recorded in southeast Turkey."