今週の地殻変動ゼミについて、日時と場所は以下のとおりです。

Here is information of the next seminar on crustal movements.

科目：地殻変動論ゼミナール（修士・博士）
日時：5月16日（木）10時00分~
場所：本館E232-D

西川友章学振特別研究員が下記の通り研究発表を行います。

Presenter: Tomoaki Nishikawa
Presentation title: Mapping the detailed distribution of slow earthquakes along the Japan Trench

Abstract: Investigating slow earthquake activity in subduction zones provides insights on the slip behavior of megathrusts, which is important to infer the rupture extent of future great earthquakes. Owing to a new ocean-bottom seismograph network along the Japan Trench, we mapped a detailed distribution of tectonic tremors, which coincided with very-low-frequency earthquakes and a slow slip event. Compiling these and other slow-earthquake-related observations, including repeating earthquakes and earthquake swarms, we show that the slow earthquake distribution is complementary to the Tohoku-Oki earthquake rupture. Our results suggest that the megathrust in the Japan Trench is divided into three along-strike segments characterised by different slip behavior, and that the rupture of the Tohoku-Oki earthquake, which nucleated in the central segment, was terminated by the two adjacent segments.

Date: 16 May, 2019 AM 10:00~
Place: E232D in Main Building