A big earthquake hits Japan on Monday night. It is in the sea near the north of Japan. Many people near the sea must leave their homes. They go to higher ground. The earthquake is very strong.
About 90,000 people leave their homes. The earthquake breaks some things. About 30 people are hurt. Some houses have no electricity. Some trains stop.
After the earthquake, people are safe. The big water from the sea does not come. Leaders in Japan tell people to be ready. They say more small earthquakes can come.
Japan has many earthquakes. People in Japan know what to do.