Swarms of microearthquakes associated with tectonic tremor bursts in the northern Japan Trench
Kazuma Matsumoto, Sendai, Miyagi, JAPAN, Ryota Hino, Tohoku University, Graduate School of Science, Sendai, Japan, Hidenobu Takahashi, Central Research Institute of Electic Power Industry, Abiko, Japan and Masanao Shinohara, Univ Tokyo, Tokyo, Japan