A Sea-Floor Spreading Event Captured by Seismometers-Reference-Cited by-同舟云学术

A Sea-Floor Spreading Event Captured by Seismometers

Published:2006-12-22 Issue:5807 Volume:314 Page:1920-1922
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Tolstoy M.¹²³⁴⁵,Cowen J. P.¹²³⁴⁵,Baker E. T.¹²³⁴⁵,Fornari D. J.¹²³⁴⁵,Rubin K. H.¹²³⁴⁵,Shank T. M.¹²³⁴⁵,Waldhauser F.¹²³⁴⁵,Bohnenstiehl D. R.¹²³⁴⁵,Forsyth D. W.¹²³⁴⁵,Holmes R. C.¹²³⁴⁵,Love B.¹²³⁴⁵,Perfit M. R.¹²³⁴⁵,Weekly R. T.¹²³⁴⁵,Soule S. A.¹²³⁴⁵,Glazer B.¹²³⁴⁵

Affiliation:

1. Lamont-Doherty Earth Observatory (LDEO) of Columbia University, Palisades, NY 10964, USA.

2. Department of Oceanography, School of Ocean and Earth Science and Technology (SOEST), University of Hawaii at Manoa, Honolulu, HI 96822, USA.

3. Pacific Marine Environmental Laboratory (PMEL), National Oceanic and Atmospheric Administration (NOAA), WA 98115, USA.

4. Woods Hole Oceanographic Institution, Woods Hole, MA 02543, USA.

5. Department of Geology and Geophysics, University of Hawaii at Manoa, Honolulu, HI 96822, USA.

Abstract

Two-thirds of Earth's surface is formed at mid-ocean ridges, yet sea-floor spreading events are poorly understood because they occur far beneath the ocean surface. At 9°50'N on the East Pacific Rise, ocean-bottom seismometers recently recorded the microearthquake character of a mid-ocean ridge eruption, including precursory activity. A gradual ramp-up in activity rates since seismic monitoring began at this site in October 2003 suggests that eruptions may be forecast in the fast-spreading environment. The pattern culminates in an intense but brief (∼6-hour) inferred diking event on 22 January 2006, followed by rapid tapering to markedly decreased levels of seismicity.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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