Empire State Building-sized
I linked, in my other comment, to the Tunguska Event, but the WP article happens to have an image showing the Empire State Building next to the Tunguska Event impactor (as well as the Chelyabinsk one) and I just had to highlight that, because the Tunguska impactor is much smaller.
The Tunguska event was a large explosion of between 3 and 50 megatons[2] that occurred near the Podkamennaya Tunguska River in Yeniseysk Governorate (now Krasnoyarsk Krai), Russia, on the morning of 30 June 1908.[1][3] The explosion over the sparsely populated East Siberian taiga flattened an estimated 80 million trees over an area of 2,150 km² (830 sq mi) of forest, and eyewitness accounts suggest up to three people may have died.
The Tunguska event is the largest impact event on Earth in recorded history, though much larger impacts occurred in prehistoric times. An explosion of this magnitude would be capable of destroying a large metropolitan area.[10] The event has been depicted in numerous works of fiction. The equivalent Torino scale rating for the impactor is 8: a certain collision with local destruction.
Very much. One of the very first things they did at the outset of the war to try to delay Ukrainian aircraft from getting in the air was use ballistic missiles. In a very expensive way to do this, I recall that one of the things they did was to try to crater runways at Ukrainian airbases by dropping ballistic missiles onto them down the length of them. Had satellite footage showing a series of ballistic missile-created craters down the length of them.
kagis
It looks like Russia does have anti-runway weapons – the BetAB-500ShP is apparently one. I assume that they just couldn’t use it in that role because they couldn’t get air superiority.