Unfortunately there was a 2nd earthquake that is registered to be 7.5 to 7.7 right as rescue efforts were underway with many more buildings coming down.
https://twitter.com/user/status/1622571763837153280
https://twitter.com/user/status/1622574494408900608
There's videos of streets of dozens of apartment complexes completely leveled to the ground, I would expect well over 100K casualties or way more. Really tragic.