Accession Number:

AD1065719

Title:

3D Regional Wave Propagation With Q(f) in East Asia

Descriptive Note:

Technical Report,01 Jun 2016,01 Jun 2017

Corporate Author:

San Diego State University San Diego United States

Personal Author(s):

Report Date:

2017-06-01

Pagination or Media Count:

50.0

Abstract:

This first annual report for FA9453-16-C-0017 provides a review of work accomplished, work in progress, and next steps. We collaboratewith Scott Phillips and Mike Begnaud of LANL to use 3D high-performance computing to reproduce high-frequency 4Hz regionalrecords 450km from the seismic sources at the North Korea nuclear test site NKNTS. The project constrains the crustal parameters, interms of seismic velocities, densities, frequency-dependent an elastic attenuation, and distributions of small-scale heterogeneities, requiredto match the observed records. The results help understand the nature of crustal scattering on the Korean Peninsula, and have implicationsfor methods used for discrimination between explosive and earthquake sources.

Subject Categories:

  • Seismology
  • Nuclear Weapons
  • Computer Programming and Software

Distribution Statement:

APPROVED FOR PUBLIC RELEASE