Rock and Roll?

The earthquakes and aftershocks (and ensuing public announcements) have been relentlessly constant. Yesterday, for example, Japan endured 23 earthquakes, releasing 537 Tera-Joules of energy. Some of those were quite noticeable here in Shizuoka, but many were felt as a swaying or rolling motion, just slightly dizzying.

Here is a snapshot of a graph of the energy release since the big one, March 11th. The interactive version is here.



Another interesting graphic depiction of the seismic events has been compiled, with the interactive version here.