Are calcareous sediments weak points in seismogenic zones?
Where a tectonic plate dives under another, in the so-called subduction zones at ocean margins, many strong earthquakes occur. Especially the earthquakes at shallow depths often cause tsunamis. How exactly are such earthquakes initiated? Which rock composition favours a break in the earth's interior that can lead to such natural disasters? A recent study points to earthquake nucleation in calcareous sediments. Read more at sciencedaily.com