Earthquake map -- Focus on Japan

[Art_from_Ark]

14. To put things into perspective...

Here is a list of all earthquakes recorded with an epicenter in the Fukushima "Hamadori" region (including the Dai-ichi complex) since June 2004. Of the 687 such earthquakes recorded since then, all but 24 have occurred after the March 11 megaquake.

http://typhoon.yahoo.co.jp/weather/jp/earthquake/list/?e=251&sort=1&key=1&b=601

Two things to note here:
The numbers in the second column from the right denote the magnitude; the numbers in the column farthest to the right denote the Japanese seismic intensity. From my own experience, 3 is a little unsettling, 4 implies that things can fall off of shelves, and 5 and above can cause varying degrees of damage. A level of 6 can result in widespread damage, while 7, the highest rating, is catastrophic.

The data in the list I link to only include earthquakes that have had an epicenter in the immediate area of the Dai-ichi complex. They do not include earthquakes centered in nearby regions such as Fukushima-ken Nakadori, Fukushima-ken Oki, Ibaraki-ken Hokubu, Ibaraki-ken Oki, Miyagi-ken Nambu, and Miyagi-ken Oki (where the Big One was centered). "Oki" refers to offshore/undersea areas, while "-ken" means "prefecture" (like a state).