qu ake ▁struck ▁the ▁Mol u cca ▁Sea , ▁Indones ia ▁on ▁May ▁ 8 ▁at ▁a ▁depth ▁of ▁ 1 0 1 . 4   km . ▁ ▁A ▁magnitude ▁ 6 . 8 ▁earth qu ake ▁struck ▁the ▁Ker ma dec ▁Islands , ▁New ▁Zealand ▁on ▁May ▁ 9 ▁at ▁a ▁depth ▁of ▁ 3 9 0 . 0   km . ▁ ▁A ▁magnitude ▁ 7 . 1 ▁earth qu ake ▁struck ▁south west ▁of ▁B oug ain ville ▁Island , ▁Pap ua ▁New ▁Guinea ▁on ▁May ▁ 9 ▁at ▁a ▁depth ▁of ▁ 7 9 . 5   km . ▁ ▁A ▁magnitude ▁ 6 . 4 ▁earth qu ake ▁struck ▁Gu an ac aste ▁Province , ▁Costa ▁Rica ▁on ▁May ▁ 1 3 ▁at ▁a ▁depth ▁of ▁ 3 5 . 0   km . ▁ ▁A ▁magnitude ▁ 6 . 2 ▁earth qu ake ▁struck ▁off ▁the ▁sout heast ▁coast ▁of ▁H ok ka ido , ▁Japan ▁on ▁May ▁ 1 4 ▁at ▁a ▁depth ▁of ▁ 3 0 . 0   km . ▁ ▁A ▁magnitude ▁ 6 . 3 ▁earth qu ake ▁struck ▁south ▁of ▁Pan ama ▁on ▁May ▁ 1 6 ▁at ▁a ▁depth ▁of ▁ 1 0 . 0   km . ▁ ▁A ▁magnitude ▁ 6 . 4 ▁earth qu ake ▁struck ▁off ▁the ▁sout heast ▁coast ▁of ▁H ok ka ido , ▁Japan ▁on ▁May ▁ 1 7 ▁at ▁a ▁depth ▁of ▁ 3 9 . 3   km . ▁