Tidal Modulation of Nonvolcanic Tremor

Computer Science – Sound

Scientific paper

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

45

Scientific paper

Episodes of nonvolcanic tremor and accompanying slow slip recently have been observed in the subduction zones of Japan and Cascadia. In Cascadia, such episodes typically last a few weeks and differ from “normal” earthquakes in their source location and moment-duration scaling. The three most recent episodes in the Puget Sound/southern Vancouver Island portion of the Cascadia subduction zone were exceptionally well recorded. In each episode, we saw clear pulsing of tremor activity with periods of 12.4 and 24 to 25 hours, the same as the principal lunar and lunisolar tides. This indicates that the small stresses associated with the solid-earth and ocean tides influence the genesis of tremor much more effectively than they do the genesis of normal earthquakes. Because the lithostatic stresses are 105 times larger than those associated with the tides, we argue that tremor occurs on very weak faults.

No associations

LandOfFree

Say what you really think

Search LandOfFree.com for scientists and scientific papers. Rate them and share your experience with other people.

Rating

Tidal Modulation of Nonvolcanic Tremor 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 Tidal Modulation of Nonvolcanic Tremor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tidal Modulation of Nonvolcanic Tremor will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFWR-SCP-O-1257393

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.