It was around 10:30 last night. I heard emergency alarm and announcement that said we should evacuate outside the apartment. I went out a hallway with doubting if it was a serious incident. I saw some other inhabitants evacuating, so I took my cloths and valuables, and wend down stairs from 19th floor to the ground…
After all, it turned out to be a false alarm an hour later. While waiting at the lobby and imagining the worst case, I was feeling uneasiness. That was partly because I live in SF by myself as an alien. I was really happy that was not a big issue actually.