Array measurements of deep tremor signals in the Cascadia subduction zone

Details Array measurements of deep tremor signals in the Cascadia subduction zone Array measurements of deep tremor signals in the Cascadia subduction zone

Nov 2005

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3221319l&link_type=abstract

Geophysical Research Letters, Volume 32, Issue 21, CiteID L21319

Computer Science

Sound

11

Seismology: Body Waves, Seismology: Subduction Zones (1207, 1219, 1240), Seismology: Seismic Instruments And Networks (0935, 3025)

Scientific paper

Preliminary analysis of deep tremor recorded during July, 2004, in the Cascadia Subduction zone shows that small aperture arrays can resolve the slowness and back azimuth of seismic waves with a useful resolution. Data were collected by three dense arrays of short-period seismometers specifically deployed in the Puget Sound area under an US-Italy-Canada cooperative effort. Slowness analyses at the three arrays indicate that the 2-4 Hz tremor wave-field is composed of waves propagating with apparent velocities higher than 4 km/s. Combining this with polarisation analysis show these waves to be transverse (SH) waves. However, P-waves, though smaller in amplitude, can be detected by different slowness values obtained for the radial and transverse components. The intersection of wave vectors determined by the back azimuth and slowness values measured at the three arrays provides a preliminary estimate of source location for a sample of the recorded deep tremor.

Affiliated with

Also associated with

No associations

Rating

Array measurements of deep tremor signals in the Cascadia subduction zone 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 Array measurements of deep tremor signals in the Cascadia subduction zone, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Array measurements of deep tremor signals in the Cascadia subduction zone will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1657530