Improvements in Earthquake Location from Joint Inversion of Seismic and Gravity Observations – Application to the Iran Region

Technical Report · Tue Jul 19 00:00:00 EDT 2016

DOI:https://doi.org/10.2172/1291183· OSTI ID:1291183

Syracuse, Ellen Marie ^[1]; Maceira, Monica ^[1]; Phillips, William Scott ^[1]; Begnaud, Michael Lee ^[1]; Nippress, Stuart ^[2]; Bergman, Eric ^[3]; Zhang, Haijiang ^[4]

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1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
2. Atomic Weapons Establishment (AWE) Blacknest, Brimpton (United Kingdom)
3. Global Seismological Services (GSS), Golden, CO (United States)
4. Univ. of Science and Technology of China, Hefei (China)

These are slides which show many graphs and datasets for the above-mentioned topic and then concludes with the following: Joint inversion of multiple geophysical datasets improves recovery of velocity structures, particularly in Vs and in shallow parts of the model, in comparison to travel-time only models. Resulting fits to travel time data are minimally degraded by joint inversions. Correspondingly, fits to independent estimates of ground-truth locations are minimally affected by joint inversions.

• Research Organization: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA), Office of Defense Nuclear Nonproliferation
• DOE Contract Number: AC52-06NA25396
• OSTI ID: 1291183
• Report Number(s): LA-UR-16-25214
• Country of Publication: United States
• Language: English

Related Subjects

58 GEOSCIENCES