We estimated the performance of future earthquake early warning (EEW) system in Indonesia. We modeled casualty ratio over natural warning lead time (S-P time). We estimated the lead time by a proposed EEW system. We applied the casualty ratio model to estimate the casualty with and without EEW system.
We estimated the lead time by a proposed EEW system and applied the casualty ratio model to estimate the casualty with and without EEW system. We obtained the reduction of the casualty by the EEW system in the area with about 34 % and 3% for a scenario of an M8 subduction zone earthquake and for that of an M7 inland earthquake, respectively. We concluded that the increased lead time by the EEW can play an important role to reduce the number of casualty by future damaging earthquakes in western Java.