Discrimination of Small Earthquakes and Buried Single-Fired Chemical Explosions at Local Distances (<150 km) in the Western United States from Comparison of Local Magnitude (ML) and Coda Duration Magnitude (MC)

Autor: Brandon Schmandt, Monique M. Holt, Moira L. Pyle, Ruijia Wang, Jonathan R. Voyles, Keith D. Koper, Relu Burlacu
Rok vydání: 2020
Předmět:
Zdroj: Bulletin of the Seismological Society of America. 111:558-570
ISSN: 1943-3573
0037-1106
DOI: 10.1785/0120200188
Popis: Seismologists distinguish underground nuclear explosions from more commonly occurring earthquakes using moment tensor inversion, high-frequency P/S amplitude ratios, mb:Ms comparisons, and P-pP differential travel times. These methods are generally successful for large seismic events (M>3–4) well recorded at regional-to-teleseismic distances (>150 km); however, it is unclear whether they can be modified to work for small events (M
Databáze: OpenAIRE