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Science 25 May 2001:
Vol. 292. no. 5521, pp. 1495 - 1496
DOI: 10.1126/science.1061770
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Perspectives

GEOPHYSICS:
Silent Slip on the Cascadia Subduction Interface

Wayne Thatcher

Sensor arrays based on the Global Positioning System permit increasingly precise, continuous monitoring of deformation in Earth's crust. In his Perspective, Thatcher highlights the report by Dragert et al., who have analyzed data from one such array and have detected a silent (aseismic) slip event in a subduction zone. Such events would normally be expected to be associated with recent earthquake activity. Much remains to be learned about earthquake stress buildup, but thanks to GPS and other technologies, our understanding of earthquakes is rapidly expanding.

The author is at the U.S. Geological Survey, Menlo Park, CA 94025, USA. E-mail: thatcher{at}usgs.gov

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THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Aftershock Zone Scaling.
(2002)
Bulletin of the Seismological Society of America 92, 641-655


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