Daily Archives: March 13, 2011

Japan: 70% chance of mag-7+ quake by Wednesday

… according to the Japan Meteorological Agency. Maybe. This seems not to be an official prediction stated my the JMA, as it does not appear on their web site, but agency director Takashi Yokata has made the statement to news agencies. There have been, of course, numerous aftershocks already. A 3.8 mag aftershock occurred in the immediate vicinity of the earlier 9.0 quake just as I was writing up this blog post. A 4.9 magnitude quake occurred a half hour ago. Oh, wait, there was another one down in Okinawa, 3.7 magnitude, a few seconds ago. It is impossible to keep up! Over the last 24 hours there have been close to 30 quakes ranging fom 3.0 to over 5.0 magnitude (most over 4.0) in Japan, most but not all more or less near the large recent quake.

Even though Japan gets lots of quakes, that’s a lot.

Over the last 48 hours, a 250 km radius circle around the cite of the 9.0 magnitude quake has had over 100 quakes of 3.0 mag or greater. Last year at the same time, the rate was closer to 6 such quakes ever 48 hours. The region is a bowl of shaking jello today. Normally, it is just semi-still jello.