Japan Geoscience Union Meeting 2019

Presentation information

[J] Poster

S (Solid Earth Sciences ) » S-SS Seismology

[S-SS11] Seismic wave propagation: Theory and Application

Tue. May 28, 2019 5:15 PM - 6:30 PM Poster Hall (International Exhibition Hall8, Makuhari Messe)

convener:Kiwamu Nishida(Earthquake Research Institute, University of Tokyo), Kazuya Shiraishi(Japan Agency for Marine-Earth Science and Technology), Takao Nibe(JAPEX), Kaoru Sawazaki(National Research Institute for Earth Science and Disaster Resilience)

[SSS11-P09] Dynamic Triggering Earthquakes Exploration by Sonification of Seismograms

*Takahiko Uchide1, Yota Morimoto2, Masaki Matsubara3 (1.Research Institute of Earthquake and Volcano Geology, Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology (AIST), 2.Institute of Sonology, Royal Conservatory of the Hague, 3.University of Tsukuba)

Keywords:Seismograms, Sonification, Dynamic Triggering Earthquakes

We have been proposing the sonification of seismograms for exploring dynamic triggering earthquakes (Uchide et al., JpGU, 2016, 2018; Matsubara et al., 2016). The seismic sonification for the 2011 Tohoku-oki earthquake successfully revealed a dynamic triggering event in the Hida area, Central Japan. For the ease of the seismic sonification for seismologists, we are developing the Sonification of Seismograms (SoS) system (Uchide et al., JpGU, 2018), which assigns sound whose amplitude and tone correspond to the maximum absolute value and the number of zero-crossings of seismograms in short time windows.

This study investigates dynamic triggering events by recent major earthquakes using the SoS software. In the case of the 2011 Tohoku-oki earthquake, the dynamic triggering event in the Hida area was M 4.2 (Ohmi et al., 2012) which is relatively large. Identification of smaller dynamic triggering events may be a challenge. Limiting areas of stations for the sonification help us identify where a dynamic triggering event may or may not occur.

In front of our poster, we will provide the opportunity to listen sonified sounds and demonstrate the interactive sonification process using the SoS.


We used the Global CMT Catalog and seismic data from Hi-net of NIED, seismic data from JMA, Hokkaido University, Hirosaki University, Tohoku University, the University of Tokyo, Nagoya University, Kyoto University, Kochi University, Kyushu University, Kagoshima University, and AIST. This work was supported by JSPS KAKENHI 17K14386.