Other
Scientific paper
Nov 2011
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011georl..3821309k&link_type=abstract
Geophysical Research Letters, Volume 38, Issue 21, CiteID L21309
Other
1
Seismology: Earthquake Source Observations (1240), Seismology: Subduction Zones (1207, 1219, 1240)
Scientific paper
Locations of coherent short-period seismic wave radiation from the 11 March 2011 Tohoku earthquake (Mw 9.0) are imaged by back-projecting teleseismic P waves recorded across North America for a series of narrow, overlapping passbands centered at 8s, 4s, 2s, 1s, and 0.5s. Initially the energy release for all five passbands migrates slowly down-dip, however over time the two longer-period passbands show coherent energy release systematically shifted up-dip of the shorter-period source regions. Back-projection images of P waves from ten (point-source-like) aftershocks do not show a frequency-dependent trend, implying that the frequency dependence observed for the main shock is not an artifact created by 3D earth structure, depth phase interference, or some other deficiency. We conclude that the unstable sliding properties along the megathrust are segmented, with faster moment rate variations in the down-dip region and relatively smooth sliding further up-dip.
Hutko Alexander R.
Koper Keith D.
Lay Thome
No associations
LandOfFree
Along-dip variation of teleseismic short-period radiation from the 11 March 2011 Tohoku earthquake (Mw 9.0) 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 Along-dip variation of teleseismic short-period radiation from the 11 March 2011 Tohoku earthquake (Mw 9.0), we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Along-dip variation of teleseismic short-period radiation from the 11 March 2011 Tohoku earthquake (Mw 9.0) will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-739174