Perspective: a graphical comparison of earthquake energy release

[OKIsItJustMe]

11. There had been a previous quake which measured in at 7.1

Perhaps you heard that mentioned? (Sometimes, when there is too little information about current events, reports will deal with past events.)

http://www.dnr.wa.gov/ResearchScience/Topics/GeologicHazardsMapping/Pages/nisqually_eq.aspx

At 10:54 A.M. Pacific Standard Time on Wednesday, February 28, 2001, a magnitude 6.8 Benioff zone earthquake shook southern Puget Sound. The Nisqually earthquake was centered at latitude 47.1525N, longitude 122.7197W at a depth of 52.4 km. The epicenter, located adjacent to the Nisqually River delta, was at the same location as the magnitude 7.1 earthquake on April 29, 1945. The state capital, Olympia, is located 18 km (11 mi) southwest of the epicenter. Aftershocks followed on March 1st, with a 3.4 magnitude earthquake at 1:10 a.m. followed by a 2.7 magnitude earthquake at 6:23 a.m.

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