Comparison of LASSIE observed travel times and amplitudes with predicted values from SCEC velocity models.

Zagid Abatchev, & Paul M. Davis

Published August 15, 2016, SCEC Contribution #6991, 2016 SCEC Annual Meeting Poster #254

A dense broadband survey (LASSIE Los Angeles Seismic Syncline Interferometry Experiment) was conducted to improve our velocity and structure models for the Los Angeles Basin region. The survey was a cooperative experiment among industry, academia and government and consisted of a total of 73 broadband sensors installed across the LA basin between Long Beach and the Puente Hills. The data has been shared amongst all participants. In addition to noise correlation studies, local earthquakes and teleseisms were well recorded. The data will be used in a joint inversion for structure. We are computing travel times and amplitudes for events using our implementation of a ray shooting model through the 3D velocity structures given by the SCEC Community Velocity Model (CVM and CVM-H) and models being derived from LASSIE data. We are comparing predicted and observed values in order to determine corrections to the CVM.

Citation
Abatchev, Z., & Davis, P. M. (2016, 08). Comparison of LASSIE observed travel times and amplitudes with predicted values from SCEC velocity models.. Poster Presentation at 2016 SCEC Annual Meeting.

Related Projects & Working Groups
Seismology