An asteroid over a kilometer in width — like 7335 (1989 JA) — could trigger a worldwide cataclysm.
There are no recorded reactions in history of what it was like when an asteroid of this size struck the Earth.However, the closest thing we do have are testimonies from those who experienced the Tunguska incident, when an asteroid thought to be around 190 meters wide struck the Earth over Siberia, Russia in 1908.
Impacts can still happen, in fact, one recently did in March when 2022 EB5, a small asteroid three meters wide, roughly the size of half a giraffe, struck the EarthBut these are small impacts and not on the level of a global catastrophe like 7335 (1989 JA)