Asteroid

for context:
1 story = 3.3 to 4.3 metres (10.8 to 14.1 feet) based on what i found on google
multiply by 20: the asteroid is 66 to 86 m (216.5 to 282.15 ft) in size
for comparison, the dino killer asteroid was 10km in size, so the answer is no, this will not make humans extinct, most it could do is kill some thousand people maybe??
(feel free to post in r/theydidthemath and/or spam with nerd emojis)

This is Tunguska sized asteriod. Tunguska hit somewhere in the emptiness of Siberia, but had it fallen in London, the destruction would have been so great it would have been felt in the suburbs
https://impact.ese.ic.ac.uk/ImpactEarth/cgi-bin/impact.cgi?latitude=&longitude=&LocationSelect=1&CraterSelect=0&diam=160&diameterUnits=1&pdiameter_select=0&pdens=&pdens_select=1500&vel=20&velocityUnits=1&velocity_select=0&theta=45&angle_select=0&wdepth=&wdepthUnits=1