▁B oug ain ville ▁Island , ▁Pap ua ▁New ▁Guinea ▁on ▁August ▁ 1 4 ▁at ▁a ▁depth ▁of ▁ 4 8 . 3   km . ▁ ▁A ▁magnitude ▁ 6 . 5 ▁earth qu ake ▁struck ▁F iji ▁on ▁August ▁ 1 5 ▁at ▁a ▁depth ▁of ▁ 6 0 3 . 0   km . ▁ ▁A ▁magnitude ▁ 6 . 2 ▁earth qu ake ▁struck ▁south west ▁of ▁B oug ain ville ▁Island , ▁Pap ua ▁New ▁Guinea ▁on ▁August ▁ 1 6 ▁at ▁a ▁depth ▁of ▁ 3 5 . 0   km . ▁ ▁A ▁magnitude ▁ 7 . 5 ▁earth qu ake ▁struck ▁eastern ▁X iz ang ▁Province , ▁China ▁on ▁August ▁ 1 7 ▁at ▁a ▁depth ▁of ▁ 2 5 . 0   km . ▁Fif ty - four ▁people ▁were ▁killed ▁and ▁ 7 7 4 ▁homes ▁were ▁destroyed . ▁ ▁A ▁magnitude ▁ 6 . 2 ▁earth qu ake ▁struck ▁off ▁the ▁coast ▁of ▁Co qu im bo ▁Region , ▁Chile ▁on ▁August ▁ 1 8 ▁at ▁a ▁depth ▁of ▁ 3 5 . 0   km . ▁ ▁A ▁magnitude ▁ 5 . 5 ▁earth qu ake ▁struck ▁central ▁California ▁on ▁August ▁ 2 2 ▁at ▁a ▁depth ▁of ▁ 6 . 0   km . ▁This ▁was ▁an ▁after sh ock ▁of ▁the ▁July ▁ 2 1 ▁event ▁in ▁the ▁area . ▁A ▁further ▁two ▁death s ▁were ▁caused ▁and ▁at ▁least ▁ 5 1 ▁people ▁were ▁hurt . ▁Nin