Reliable determination of earthquake source parameters is a subject of fundamental importance for seismological research. It also provides critical observational constraints to the study of deformation and stress within the lithosphere. A comprehensive catalog of earthquake source parameters is not only essential to the understanding of global and regional tectonics, but also offers critical information on geological structures that may have engineering, economic, and hazard implications.

In addition to the origin time, hypocenter, and magnitude, an earthquake’s source parameters include its focal mechanism, source time function, and the spatiotemporal distribution of slip. However, unless the source dimension is considerably larger...

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