Transient crustal deformation in Tokai region, central Japan, until May 2004

An analysis of Global Positioning System (GPS) data reveals a continuation of the transient crustal deformation that was first reported by Ozawa et al. (2002) in the western Tokai region. Kalman filtering following the time-dependent inversion shows a slow-thrust slip occurring on the plate boundary...

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Published inEarth, planets and space Vol. 57; no. 10; pp. 909 - 915
Main Authors OZAWA, Shinzaburo, MURAKAMI, Makoto, KAIDZU, Masaru, HATANAKA, Yuki
Format Conference Proceeding Journal Article
LanguageEnglish
Published Tokyo Terra 01.01.2005
Subjects
Cosmochemistry. Extraterrestrial geology
Earth sciences
Earth, ocean, space
Exact sciences and technology
Far East
Japan
inverse problem
transient crustal deformation
aluminum
Tokai
earthquakes
Global Positioning System
Asia
slip
aseismic slip
deformation
Kalman filtering
plate boundaries
lakes
transient phenomena
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Summary:An analysis of Global Positioning System (GPS) data reveals a continuation of the transient crustal deformation that was first reported by Ozawa et al. (2002) in the western Tokai region. Kalman filtering following the time-dependent inversion shows a slow-thrust slip occurring on the plate boundary in the western Tokai region, with its center around Lake Hamana, which is adjacent to the anticipated Tokai earthquake source area. The moment release from the Tokai silent earthquake was observed to be continuous surpassing MW 7.0 in May 2004, with relative slip increases to the northeast and north of Lake Hamana from 2002. The moment release rate decreased in 2002, and then increased in 2003, reaching the rate observed in 2001.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:1343-8832
1880-5981
1880-5981
DOI:10.1186/BF03351870