Deep sea borehole observatories ready and capturing seismic waves in the western Pacific

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doi: 10.1029/2002EO000420
Author(s): Suyehiro, Kiyoshi; Araki, Eiichiro; Shinohara, Masanao; Kanazawa, Toshihiko
Author Affiliation(s): Primary:
Japan Marine Science and Technology Deep Sea Research Department, Yokosuka, Japan
Other:
University of Tokyo, Japan
Volume Title: Eos, Transactions, American Geophysical Union
Source: Eos, Transactions, American Geophysical Union, 83(53), p.621, 624-625. Publisher: American Geophysical Union, Washington, DC, United States. ISSN: 0096-3941 CODEN: EOSTAJ
Note: In English. 6 refs.; illus., incl. sect., geol. sketch map
Summary: Digital broadband seismometer networks and GPS networks are the recent sources of rapid progress in solid Earth geophysics. But they do not exist beneath the oceans. The lack of observatories in deep oceans that cover 71% of the Earth's surface has been considered a major deficiency in the seismic network by the scientific community. About 80% of the present plate boundary is located in the oceans and about 90% of seismic energy release is earthquakes beneath the sea floor, mostly at plate subduction zones. Ocean basins and continents that make up our environments are not mere superficial features. They are surface manifestations of plate tectonics, mantle mixing, and core-mantle interactions invigorated by the recycling of the oceanic plates.
Year of Publication: 2002
Research Program: ODP Ocean Drilling Program
Key Words: 18 Geophysics, Solid-Earth; Boreholes; Deep-sea environment; Depth; Digital data; Earthquakes; Elastic waves; Marine environment; Marine methods; Noise; Observatories; Ocean Drilling Program; Pacific Ocean; Plate tectonics; Seismic networks; Seismic waves; Seismograms; Subduction; West Pacific
Record ID: 2003016881
Copyright Information: GeoRef, Copyright 2017 American Geosciences Institute.

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