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Strong Motion Data 2011 Off the Pacific Coast of Tohoku earthquake

Strong Motion Data 2011 Off the Pacific Coast of Tohoku earthquake

RE: Strong Motion Data 2011 Off the Pacific Coast of Tohoku earthquake

Hi

Interesting link. But I have a questing, what does the unit "gal" mean. I have never seen that before.

Regards

Thomas

RE: Strong Motion Data 2011 Off the Pacific Coast of Tohoku earthquake

(OP)
From what in the text said one infers are thousandt of 1g. It seems at least one of the sensors topped 3g in the records.

RE: Strong Motion Data 2011 Off the Pacific Coast of Tohoku earthquake

(OP)
See the chart top left of page 2.

cm/seg^2 tops 2000 as the chart in page 1.
Must be then gal=cm/seg^2

 

RE: Strong Motion Data 2011 Off the Pacific Coast of Tohoku earthquake

Hi

I found it in Wikipedia. It actually means galileo and is used in gravimetri. 1 gal = 1 cm/s^2 so 3000 gals is 30 m/s^2 or approx 3 g.

So it was a really nasty quake.

Regards

Thomas

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