This article was originally posted on RealClearScience.
The deadliest tsunami in world history struck southeast Asia on Boxing Day 2004 following a behemoth 9.1-magnitude earthquake. Several years later, in March 2011, another tsunami hit Japan, again following a 9.0-magnitude quake. It is not a surprise, then, that geophysicist Gerard Fryer considers earthquakes to be the most common cause of tsunamis. But, they are not the only cause. Landslides are the second most common cause, such as the ones that generated tsunamis in Lake Geneva and Doggerland, a now submerged region of land in the North Sea that once connected Britain to mainland Europe. Continue reading