Image:Pie final.jpg

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This pie chart shows how the total seismic moment released by earthquakes over the period 1906-2005 was distributed, with the largest individual earthquakes (left side) and groups of earthquakes (right side). The thin sliver of the 1906 San Francisco Earthquake is also depicted for comparison purposes. M_w designates an earthquake's magnitude on the moment magnitude scale.

Richard Aster (New Mexico Tech) created this figure using the resources of the IRIS Consortium and the USGS. Additional data was generously provided by Lynn Sykes of Lamont-Doherty Earth Observatory, Columbia University.

Earthquakes referenced in this chart:

• Alaska (1964): Good Friday Earthquake
• Chile (1960): Great Chilean Earthquake
• San Francisco (1906): 1906 San Francisco earthquake
• Sumatra (2004): 2004 Indian Ocean earthquake

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