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Lg wave from from an earthquake known as Massachusetts Mountain Earthquake(5 August 1971), which was recorded at the Mina Nevada station
data("mass.mountain")
The format is: num [1:454] -0.03655 -0.01774 0.00218 0.01193 0.00915 ...
"Applied Time Series Analysis with R, 2nd edition" by Woodward, Gray, and Elliott
data(mass.mountain)
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