earthquake 英語で:

1. a sudden shaking of the earth's surface that often causes a lot of damage

英語 "という言葉earthquake"（a sudden shaking of the earth's surface that often causes a lot of damage）集合で発生します。

2. quake

3. movement of the ground because of seismic activity

英語 "という言葉earthquake"（movement of the ground because of seismic activity）集合で発生します。