Such a survey was done before oil from the tanker Sea Empress hit the Welsh coast in 1996.
这样的调查是在1996年“海皇后号”（Sea Empress）油轮漏油袭击威尔士海岸之前进行的。
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Such a survey was done before oil from the tanker Sea Empress hit the Welsh coast in 1996, and made it possible to monitor the quite pleasing speed of the recovery.
The combination of how close it was to the coast and how shallow it was made it a "perfect storm for the tsunami generation," said Susan Hough of the U.S. Geological Survey in Pasadena.