Note to users. If you're seeing this message, it means that your browser cannot find this page's style/presentation instructions -- or possibly that you are using a browser that does not support current Web standards. Find out more about why this message is appearing, and what you can do to make your experience of our site the best it can be.
Roche Webinar

Site Tools

  • AAAS
  • Subscribe
  • Feedback

Site Search

Search Advanced

Science 28 May 2004:
Vol. 304. no. 5675, pp. 1295 - 1298
DOI: 10.1126/science.1096535
Prev | Table of Contents | Next

Reports

High Pore Fluid Pressure May Cause Silent Slip in the Nankai Trough

Shuichi Kodaira,1 Takashi Iidaka,2 Aitaro Kato,1 Jin-Oh Park,1 Takaya Iwasaki,2 Yoshiyuki Kaneda1

Silent-slip events have been detected at several subduction zones, but the cause of these events is unknown. Using seismic imaging, we detected a cause of the Tokai silent slip, which occurred at a presumed fault zone of a great earthquake. The seismic image that we obtained shows a zone of high pore fluid pressure in the subducted oceanic crust located down-dip of a subducted ridge. We propose that these structures effectivelyextend a region of conditionallystable slips and consequently generate the silent slip.

1 Institute for Frontier Research on Earth Evolution, Japan Agency for Marine-Earth Science and Technology, Showa-machi 3175-25 Kanazawa-ku, Yokohama 236-0001, Japan.
2 Earthquake Research Institute, University of Tokyo, Yayoi 1-1-1 Bunkyo-ku, Tokyo 113-0032, Japan.

Read the Full Text


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Probable low-angle thrust earthquakes on the Juan de Fuca-North America plate boundary.
A. M. Trehu, J. Braunmiller, and J. L. Nabelek (2008)
Geology 36, 127-130
   Abstract »    Full Text »    PDF »
Pole-Tide Modulation of Slow Slip Events at Circum-Pacific Subduction Zones.
Z.-K. Shen, Q. Wang, R. Burgmann, Y. Wan, and J. Ning (2005)
Bulletin of the Seismological Society of America 95, 2009-2015
   Abstract »    Full Text »    PDF »
Earthquake Source Fault Beneath Tokyo.
H. Sato, N. Hirata, K. Koketsu, D. Okaya, S. Abe, R. Kobayashi, M. Matsubara, T. Iwasaki, T. Ito, T. Ikawa, et al. (2005)
Science 309, 462-464
   Abstract »    Full Text »    PDF »


ADVERTISEMENT
Click Me!

ADVERTISEMENT
Click Me!

To Advertise     Find Products

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