Seismic record

http://www.kyoshin.bosai.go.jp/kyoshin/topics/html20110311144626/main_20110311144626.html

Here are some seismic records, in case you want to use the recording on a large turntable-like device to re-play earthquakes.

One thing I still find amazing yet absolutely accurate is that 5 minutes after the start of the earthquake it is still rocking at an intensity of Shindo 3 over a wide area.