Kumamoto - Residents across earthquake-stricken Kumamoto Prefecture are enduring extreme heat without water, electricity or air conditioning as rescue teams continue searching collapsed buildings following the powerful earthquake that registered the maximum seismic intensity of 7. Authorities have yet to determine the full number of homes damaged across the prefecture. At a community center in Yatsushiro, residents formed another long line for drinking water. Some traffic signals had begun operating again one day after the earthquake, but most streetlights and homes remained dark. With both electricity and water unavailable in many communities, evacuees were rapidly losing strength as the heat continued.