Correlation between Coulomb stress changes imparted by large historical strike-slip earthquakes and current seismicity in Japan

Details Correlation between Coulomb stress changes imparted by large historical strike-slip earthquakes and current seismicity in Japan Correlation between Coulomb stress changes imparted by large historical strike-slip earthquakes and current seismicity in Japan

Mar 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011ep%26s...63..301i&link_type=abstract

Earth, Planets and Space, Volume 63, Issue 3, p. 301-314.

Mathematics

Probability

1

Scientific paper

To determine whether current seismicity continues to be affected by large historical earthquakes, we investigated the correlation between current seismicity in Japan and the static stress changes in the Coulomb Failure Function (ΔCFF) due to eight large historical earthquakes (since 1923, magnitude ≥ 6.5) with a strike-slip mechanism. The ΔCFF was calculated for two types of receiver faults: the mainshock and the focal mechanisms of recent moderate earthquakes. We found that recent seismicity for the mainshock receiver faults is concentrated in the positive ΔCFF regions of four earthquakes (the 1927 Tango, 1943 Tottori, 1948 Fukui, and 2000 Tottori-Ken Seibu earthquakes), while no such correlations are recognizable for the other four earthquakes (the 1931 Nishi-Saitama, 1963 Wakasa Bay, 1969 Gifu-Ken Chubu, and 1984 Nagano-Ken Seibu earthquakes). The probability distribution of the ΔCFF calculated for the recent focal mechanisms clearly indicates that recent earthquakes concentrate in positive ΔCFF regions, suggesting that the current seismicity may be affected by a number of large historical earthquakes. The proposed correlation between the ΔCFF and recent seismicity may be affected by multiple factors controlling aftershock activity or decay time.

Affiliated with

Also associated with

No associations

Rating

Correlation between Coulomb stress changes imparted by large historical strike-slip earthquakes and current seismicity in Japan 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 Correlation between Coulomb stress changes imparted by large historical strike-slip earthquakes and current seismicity in Japan, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Correlation between Coulomb stress changes imparted by large historical strike-slip earthquakes and current seismicity in Japan will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-863118