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 |
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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 |
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