NEW : Frightened patients flee hospital and refuse to return as aftershocks rumble . NEW : No immediate reports of casualties ; damage reported but extent not yet known . 8.50am One resident , Carlos Estribi , said he picked up his children in his arms and ran to the public plaza in David , seeking protection since he felt like his house was collapsing . - The US Geological Survey says the quake has caused a tsunami that is expected to hit Hawaii at 9.15am. about 235 miles ( 380 km ) west of Panama City .
NEW : Frightened patients flee hospital and refuse to return as aftershocks rumble . NEW : No immediate reports of casualties ; damage reported but extent not yet known . 8.50am - The US Geological Survey says the quake has caused a tsunami that is expected to hit Hawaii at 9.15am. about 235 miles ( 380 km ) west of Panama City .