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- Jun 17th 2009, 10:30 PM #1

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## One more question..

How would I go about converting intensity to magnitude? (earthquakes)

Richter of 6.1 = 1,258,925.412

But, I am unable to do the opposite! >.<

Intensities:

:39,877,000

:12,589,000

:251,200

If you'd use one for an example, that would be greatly appreciated.

- Jun 18th 2009, 01:41 AM #2

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- Jun 18th 2009, 01:50 AM #3

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The formula is

where is the intensity of a zero-level earthquake. Looking at this:

Richter of 6.1 = 1,258,925.412

So, for an intensity of 39,877,000,

.

You can do the other two.

01

EDIT: Beaten to it by Kiwi Dave!