What is it about?
Our paper offers the closest possible seismological insight into the focal mechanism of Mw5.7 event and, in particular, into its earthquake nucleation. The work builds on a unique dataset and careful modeling. We use the rich high-quality region broadband seismograms from epicentral area. Our waveform modeling includes the latest techniques for the moment-tensor uncertainty assessment.
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Why is it important?
Our findings provide typical features of earthquakes occurred in injection region in earthquake nucleation, and also point to a shallow strike-slip active fault not yet mapped in the region, thus important for focal mechanism and future hazard assessment in this region.
Perspectives
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This page is a summary of: The 2019
M
W
5.7 Changning Earthquake, Sichuan Basin, China: A Shallow Doublet With Different Faulting Styles, Geophysical Research Letters, February 2020, American Geophysical Union (AGU),
DOI: 10.1029/2019gl085408.
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