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News Release 10-144

Deadly Tonga Earthquake Revealed as Three Big Quakes

September 29, 2009, event was seismic triple-whammy

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Map showing the location of the three quakes near Samoa, American Samoa and Tonga.

The Sept. 29, 2009, quake in Samoa, American Samoa and Tonga was in fact a triple-quake.

Credit: Keith Koper, University of Utah


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Photo of Keith Koper looking at quake evidence.

Keith Koper, director of the University of Utah Seismograph Stations, looks at quake evidence.

Credit: Remi Barron, University of Utah


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