The seismic activity after Friday's giant earthquake in Japan is still very high. Hundreds of aftershocks has been recorded after the mainshock which is now upgraded to magnitude 9.0. This means that the earthquake is the 4th largest ever recorded.The picture shows earthquakes of magnitude 4.5 or larger as of 11:00 GMT today, adding up to a count of 227!
While media is mainly focusing on the problems at the Fukushima nuclear powerplant I'm more concerned about the seismic situation. There is no sign of reduced seismic activity. The possibility of an aftershock of magnitude 7+ is still high. This may trigger yet another tsunami with devastating effect.
A computer generated animation of the tsunami triggered by the mainshock can be viewed here.
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