Seismic sections show the response of the earth to seismic waves. 地震剖面是地壳对地震波的响应。
Seismic waves move out from the focus of an earthquake in all directions. 地震波从震中向周围的各个方向传播。
When the blast wave expands, it breaks the bubbles and thereby loses energy. 爆震波扩张时,会由气泡吸收,因而丧失能量。
When this happens, seismic waves travel faster than usual through the rock. 当这种情况发生,震波穿过岩石的移动速度要比往常快。
By sheer coincidence, a trio of earth-monitoring satellites gave modelers the pristine, undistorted wave heights they needed for the Indian Ocean tsunami. 十分巧合的是,有一组地球观测卫星提供了最原始且如实的海啸波高值,这是模型设计师模拟印度洋海啸时不可或缺的。