Using Moment Tensor Inversions for Rapid Seismic Source Detection and Characterization: Application to the North Korean Nuclear Tests

• DOI: 10.1007/s00024-024-03455-7
• Publication Date: 2024-03-28T14:01:45Z
• Authors: Aurelie Guilhem T...; Yoann Cano
• Keywords: Moment tensor; Characterization; Nuclear test

Abstract The rapid detection and source characterization of any type seismic events including earthquakes nuclear explosions is one the missions many seismological laboratories. Most often, techniques used are based on phase picking amplitude measurements for detecting locating events, estimating magnitudes. From these parameters, especially anthropogenic sources, event screening then done empirically, this may lead to misinterpretations nature. However, it known that waveform inversion determination moment tensor has proven be a reliable physics-based method characterization. Here, we present technique already earthquake monitoring in tectonically active regions, test very shallow natural recorded vicinity Democratic People’s Republic Korea (DPRK). grid potential locations by scanning continuous waveforms, possible implement detector providing full information sources (origin time, location, magnitude, mechanism, decomposition). We show its overall performances all past DPRK tests regional earthquakes. such an approach fast complete achieved. Source uncertainties can also estimated. This stand-alone identifier help agencies provide alert within region interest before more in-depth discrimination analysis run.