Earthquake Center - Image Nr. 3 of 10
These are seismographs that are measuring activity from all over the Mid-South region. The whole sheet of paper represents a 24-hour period, with the little individual lines representing one minute.
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These are seismographs that are measuring activity from all over the Mid-South region. The whole sheet of paper represents a 24-hour period, with the little individual lines representing one minute.
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