How did humans survive catastrophic volcanic explosions to piece together the story today?

A massive eruption 74,000 years ago affected the whole planet – archaeologists use volcanic glass to figure out how people survived

Source: space
Source Link: https://www.space.com/astronomy/earth/a-massive-eruption-74-000-years-ago-affected-the-whole-planet-archaeologists-use-volcanic-glass-to-figure-out-how-people-survived