From an analysis of the hot-spot population it appears that the African plate is stationary and that it has not moved during the past 30 million years.

▲本句的population 就是指人口，hot-spot 作定语。

【翻译】根据对热点地区（指“火山频发区”）人口的分析来看，似乎看起来非洲板块是固定的，在过去的3000万年里它没有移动过。