SURPRISING: During the 100 year period between 1906 and 2005 three earthquakes accounted for nearly half of the world's total seismic release!

During the 100 year period between 1906 and 2005 three earthquakes accounted for nearly half of the world's total seismic release. The 1960 Valdivia Earthquake accounted for greater than 20% of the global seismic release. The width of thin black wedge at slightly past 3:00 on the chart represents the release of the deadly San Francisco Earthquake of 1906.

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