strong ground motion

例句：

1. 1.The strong ground motion caused the buildings to shake violently.
   强烈的地面震动使建筑物剧烈摇晃。
2. 2. Earthquakes are a major cause of natural disasters.
   地震是自然灾害的主要原因之一。
3. 3. In this earthquake, many people lost their homes and were forced to flee.
   这次地震中，许多人失去了家园，被迫逃离。