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| | Quake ripped seabed asunder | www.azstarnet.com ® |
 | | The maps, created with multi-beam sonar, show ridges as tall as 4,950 feet that were created over thousands of years by the slow collision of the deep, flat Indian plate and the ragged edge of the Burma plate. |
 | | That collision has resulted in the Indian plate being gradually shoved under the edge of the Burma plate in a process known as subduction, said Russell Wynn, a marine geologist at the Southampton Oceanography Centre, which took part in the survey. |
 | | The quake was caused by a sudden movement of the two plates, which caused the ridge of the Burma plate to spring up 30 to 60 feet, Wynn said. |
| www.azstarnet.com /sn/printDS/60904 (338 words) |
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