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Title :Fault model of the 1964 Off Oga Earthquake as a tsunami source
Authors :Abe, Kuniaki
Publisher :日本歯科大学
Issue Date :Mar-2012
Journal Title :Bulletin of The Nippon Dental University. General Education
Volume :41
Start Page :19
End Page :24
ISSN :0385-1605
Abstract :Source model of tsunami was derived based on correlation coefficients of peaks and troughs between observation and model. In the trial model parameters were systematically varied under constraints of seismic moment, central position and length of the fault. Thus other five parameters were determined from the maximum values of correlation coefficient. This method was applied to tsunami of the 1964 Off Oga Earthquake and a fault model was derived having sizes of 50 km (length), 20 km (width), 0.96 m (dislocation), angles of N20°E (strike), 30°E (dip), 90°(slip), and position of 40.32°N (latitude), 138.95°E (longitude), 5 km (depth), It is found that the fault plane almost coincides to south one of two fault planes of the 1983 Japan Sea Earthquake. From this coincidence it is concluded that this earthquake was a precursor of the 1983 Japan Sea Earthquake.
Keywords :tsunami
fault model
1964 Off Oga Earthquake
correlation coefficient
Type Local :Departmental Bulletin Paper
Language :eng
URI :http://hdl.handle.net/10623/38932
Appears in Collections:01 Bulletin of the Nippon Dental University. General Education

Please use this identifier to cite or link to this item: http://hdl.handle.net/10623/38932

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