Factoid/2017/12/06
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< Beachapedia:Factoid | 2017 | 12
New Method for Early Detection of Earthquakes & Tsunamis
- "At present, scientists use seismic waves from a rupture to work out the scale of the event. But a new analysis of the Tohoku earthquake in Japan in 2011 shows that changes in gravity can give more rapid information...'Knowing that a quake is very large a few minutes after is not very useful for the areas that are directly affected because the seismic waves will already have affected the area,' said Dr Vallée. 'But it is for the tsunamis which often arrive half an hour after an earthquake, they are much slower than the seismic waves, and here you have some time to react. It is very useful.'" - Excerpt from BBC News.
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