jakarta powerful magnitude 6.5 earthquake strike island java indonesia midnight friday authorities report three deaths damage hundreds build u.s. geological survey say epicenter quake locate depth 92 km 57 miles 52 km southwest tasikmalaya indonesia national disaster management agency say quake activate early tsunami warn systems south java prompt thousands evacuate coastal areas tsunami detect tremor felt central west java sutopo purwo nugroho spokesman disaster agency say press brief saturday three people kill seven injure hundreds build damage include school hospitals government build west central java dozens patients help safety hospital banyumas give shelter tent say post twitter page photos people scour collapse build quake sway build several second capital jakarta residents high rise apartment build central jakarta quickly escape apartments local media report indonesia meteorology geophysics agency say magnitude 5.7 quake early saturday also strike south west java say quake tsunami potential java indonesia densely populate island home half 250 million people strong quake hit indonesia 's java kill three