I have heard that a big earthquake and tsunami occured in Indonesia two days ago and many people died. I feel sorry for them and their families. I knew the threat of big earthquakes and tsunami because they occur in Japan at times. A very big earthquake occured in Japan at 3 p.m on 11th March in 2011. Many people died by being crushed under collapsing houses, buildings and landslides, and by being washed away by the tsunami. About 17500 people died owing to this earthquake.
I know big earthquakes