Physics
Scientific paper
Mar 1995
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995georl..22..539d&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 22, no. 5, p. 539-542
Physics
11
Earth Crust, Estimating, High Frequencies, Rayleigh Waves, S Waves, Seismology, Thickness, California, Earthquakes, Nevada, Optimization, Seismographs, Waveforms
Scientific paper
The method of nonlinear waveform-fitting was extended to include changes in the depth of the Moho. Studies performed on synthetic data at 10 deg epicentral distance showed that it is theoretically possible to determine Moho-depth with an accuracy of less than a kilometer if the frequency range extends to 0.12 Hz. We applied this method on several broadband records from two earthquakes in the western United States to invert for crustal thickness. Waveform-fitting of Rayleigh waves for epicentral distances between 3 deg and 10 deg for individual paths in this region show that the average Moho-depth can be resolved to 1-2 km. It was possible to obtain good waveform fits for frequencies between 0.02-0.08 Hz. We conlude that broadband seismic data from local events allow us to determine Moho-depth independently from crustal shear-wave velocity.
Das Triparna
Nolet Guust
No associations
LandOfFree
Crustal thickness estimation using high frequency Rayleigh waves 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 Crustal thickness estimation using high frequency Rayleigh waves, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Crustal thickness estimation using high frequency Rayleigh waves will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-885630