Shallow tectonic tremor activity in the Japan Trench: continuous decay of the activity in 2016 – 2022

Shukei Ohyanagi, Kyoto University, Graduate School of Science, Kyoto, Japan, Kazuaki Ohta, National Research Institute for Earth Science and Disaster Resilience, Tsukuba, Japan, Yoshihiro Ito, Disaster Prevention Research Institute, Kyoto University, Kyoto, Japan and Ryota Hino, Tohoku University, Graduate School of Science, Sendai, Japan