Snow load and seasonal variation of earthquake occurrence in Japan

Details Snow load and seasonal variation of earthquake occurrence in Japan Snow load and seasonal variation of earthquake occurrence in Japan

Feb 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003e%26psl.207..159h&link_type=abstract

Earth and Planetary Science Letters, Volume 207, Issue 1-4, p. 159-164.

Computer Science

13

Snow Load, Earthquake Source Mechanics, Inland Earthquake, Crustal Deformation, Japan

Scientific paper

Snow load along the western flank of the backbone range of the Japanese Islands causes seasonal crustal deformation. It perturbs the interseismic strain buildup, and may seasonally influence the seismicity in Japan. Intraplate earthquakes in northeastern Japan occur on reverse faults striking parallel with the snow-covered zone. In central and southwestern Japan, they occur on strike-slip faults striking either parallel with, or perpendicular to the snow cover. The snow load enhances compression at these faults, reducing the Coulomb failure stress by a few kPa. This is large enough to modulate the secular stress buildup of a few tens of kPa/yr. Past inland earthquakes with magnitudes >=7.0 that occurred in regions covered with snow in winter, tend to occur more in spring and summer than in autumn and winter, while those in the snow-free regions do not show such variation. Although its statistical significance is not strong due to limited number of past earthquakes, it suggests that the spring thaw enhances seismicity beneath the snow cover.

Affiliated with

Also associated with

No associations

Rating

Snow load and seasonal variation of earthquake occurrence 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 Snow load and seasonal variation of earthquake occurrence in Japan, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Snow load and seasonal variation of earthquake occurrence in Japan will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-920913