Rescue crews are searching collapsed buildings for survivors after a magnitude-7.1earthquake struck southern Japan on Tuesday, killing at least 13 people and leaving many others missing. More than 9,000 people have taken shelter, while bullet trains came to a halt and some airports remained closed. Over 40,000 homes are without electricity or gas, and many have no water. Authorities are also preparing shelters for a heatwave, with temperatures expected to exceed 32°C (90°F).