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News Release 11-131
Scientists Study Earthquake Triggers in Pacific Ocean
Samples of rock, sediment from beneath the sea-floor help explain quakes like Japan's
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![Photo of the scientific drilling vessel JOIDES Resolution in Puntarenas, Costa Rica.](/news/mmg/media/images/quakes1_f.jpg)
The scientific drilling vessel JOIDES Resolution in Puntarenas, Costa Rica.
Credit: IODP
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![Map showing the location of the CRISP research site off Costa Rica.](/news/mmg/media/images/quakes2_f.jpg)
The CRISP research site is located 174 km (108 miles) off Costa Rica.
Credit: IODP
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![the rig floor of the scientific drilling vessel JOIDES Resolution.](/news/mmg/media/images/quakes3_f.jpg)
A view of the rig floor of the scientific drilling vessel JOIDES Resolution.
Credit: IODP
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![Photo of geologist Kristin Hillis labeling newly retrieved sediment cores in a shipboard lab.](/news/mmg/media/images/quakes4_f.jpg)
Geologist Kristin Hillis labels newly retrieved sediment cores in a shipboard lab.
Credit: IODP
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![Photo of scientists Michael Stipp and Masaoki Uno choosing samples for analysis.](/news/mmg/media/images/quakes5_f1.jpg)
Scientists Michael Stipp and Masaoki Uno choose samples to analyze back at their home institutions.
Credit: IODP
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