Physics
Scientific paper
May 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002georl..29i..48c&link_type=abstract
Geophysical Research Letters, Volume 29, Issue 9, pp. 48-1, CiteID 1334, DOI 10.1029/2001GL013775
Physics
5
Seismology: Seismicity And Seismotectonics, Seismology: Earthquake Dynamics And Mechanics
Scientific paper
Analysis of a high quality seismic catalog reveals that the average of seismic b-values in the crust beneath most part of northeastern Japan island arc decreased from 0.86 between 1984 and 1990, to 0.73 between 1991 and 1995. The two areas with the largest decrease are found to be in the same areas where the coupling between the North American and the Pacific plates is the highest, as suggested by a recent geodetic study. In the same time period, the annual seismic moment release increased by 10 times. In addition, there seems to be a corresponding increase in volcanic activities in the same area. One of the most likely interpretations for the observations is an increase in the subduction rate starting from 1991. The timing of this possible increase in subduction rate is consistent with an apparent increase in global seismic activity.
Cao Aimin
Gao Stephen S.
No associations
LandOfFree
Temporal variation of seismic b-values beneath northeastern Japan island arc does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Temporal variation of seismic b-values beneath northeastern Japan island arc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Temporal variation of seismic b-values beneath northeastern Japan island arc will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1516668