Would London survive the impact of a blue whale dropped from space? | Notes and queries

The long-running series in which readers answer other readers' questions on subjects ranging from trivial flights of fancy to profound scientific concepts

This question has been bothering me for some time. If a whale (specifically, the Balaenoptera musculus or blue whale, at 180 tonnes) was dropped from space (the outer limit of the Earth's atmosphere), what impact would it have on a city, compared to the Hoba meteorite in Namibia, which weighs 60 tonnes? Would, say, London survive the whale?

Isabel Swan