他很热心地调查这次地震的起因。

He is eager in investigating the cause of the earthquake.

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下面，由美国地质调查局地震预险项目组的副项目协调员迈克尔·布兰皮得博士向您解答最近发生地震的起因、地震预测等问题。

Dr. Michael Blanpied, associate program coordinator for the USGS Earthquake Hazards Program, took your questions about the causes of the recent quakes, earthquake forecasting and more.

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地震是建筑物倒塌的起因。

The earthquake was the occasion of the building's collapse.

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