Spatio-Temporal Distribution of Shallow Very-Low-Frequency Earthquakes between December 2020 and January 2021 in Kumano-Nada, Nankai Subduction Zone, Detected by A Permanent Seafloor Seismic Network
Abstract:We estimate the hypocenter locations and the centroid moment tensor solutions of the shallow very-low-frequency earthquake (sVLFE) activity that occurred in the Kumano-nada region of the Nankai Trough megathrust zone in central Japan from December 2020 to January 2021. Using seafloor observation data, we examined the detailed spatio-temporal distribution of the sVLFE activity. During this episode, the activity area was within the vicinity in which the sVLFE activity has been observed in the past and can be div… Show more
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