Seismic sections show the response of the earth to seismic waves. 地震剖面是地殼對地震波的響應。
Seismic waves move out from the focus of an earthquake in all directions. 地震波從震中向周圍的各個方向傳播。
When the blast wave expands, it breaks the bubbles and thereby loses energy. 爆震波擴張時，會由氣泡吸收，因而喪失能量。
When this happens, seismic waves travel faster than usual through the rock. 當這種情況發生，震波穿過岩石的移動速度要比往常快。
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，有一組地球觀測衛星提供了最原始且如實的海嘯波高值，這是模型設計師模擬印度洋海嘯時不可或缺的。
