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Science 17 November 1995:
Vol. 270. no. 5239, p. 1122
DOI: 10.1126/science.270.5239.1122
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Research News

Tim Appenzeller

At some subduction zones--deep trenches where ocean floor is consumed in the planet's interior--devastating earthquakes are common; others are peaceful. A new theory attributes the difference to the drag of deep, viscous rock on the descending ocean floor. Depending on its direction, this force can cause a subduction zone to jam, generating earthquakes, or keep it working smoothly.




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Science. ISSN 0036-8075 (print), 1095-9203 (online)