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Source Characterization and Uncertainty Quantification of the North Korean Nuclear Tests 2006-2017

Description: 

We introduce a novel and transportable technique to determine yield and depth of burial from seismic source spectra of underground nuclear explosions. We demonstrate the application of the technique on the six declared North Korean nuclear tests. This approach derives source spectra in absolute units for regional phase (Pg) amplitudes by correcting observations for spreading, attenuation, and site amplification. This approach stands out as an innovative use of broad-area propagation models, making it transportable and across various geologic settings. The method is applicable in situations with multiple or limited station observations where depth of burial is unknown. We present new independent estimates of absolute yield and depth of burial consistent with prior assessments, underscoring the potential of this method in enhancing nuclear explosion monitoring capabilities and transportability

Session: Advancements in Forensic Seismology and Explosion Monitoring - I

Type: Oral

Date: 5/2/2024

Presentation Time: 08:45 AM (local time)

Presenting Author: Richard

Student Presenter: No

Invited Presentation: 

Authors