Translation of "일어났을" in English

당연히 충돌이 일어났을 겁니다.

and there must have been a confrontation -

내가 일어났을 때… 그들이 거기 있는 것 같았어요

When I woke up I-- it was like they were there,

큰 도움이 되죠 피난처를 만들 때뿐만 아니라 눈사태가 일어났을 때도요

It can really save you. Not only for digging shelters, but also for avalanches.