Japan Geoscience Union Meeting 2018

Presentation information

[EE] Poster

S (Solid Earth Sciences) » S-CG Complex & General

[S-CG53] Science of slow earthquakes: Toward unified understandings of whole earthquake process

Wed. May 23, 2018 3:30 PM - 5:00 PM Poster Hall (International Exhibition Hall7, Makuhari Messe)

convener:Satoshi Ide(Department of Earth an Planetary Science, University of Tokyo), Hitoshi Hirose(Research Center for Urban Safety and Security, Kobe University), Kohtaro Ujiie(筑波大学生命環境系, 共同), Takahiro Hatano(Earthquake Research Institute, University of Tokyo)

[SCG53-P01] Development of Slow Earthquake Database

*Masayuki Kano1,2, Naofumi Aso3, Takanori Matsuzawa4, Satoshi Ide3, Satoshi Annoura5, Ryuta Arai6, Satoru Baba2, Michael Bostock7, Kevin Chao8, Kosuke Heki9, Satoshi Itaba10, Yoshihiro Ito11, Noriko Kamaya5, Takuto Maeda2, Julie Maury12, Mamoru Nakamura13, Takuya NISHIMURA11, Koichiro Obana6, Kazuaki Ohta11, Natalia Poiata14,15, Baptiste Rousset16, Hiroko Sugioka17, Ryota Takagi18, Tsutomu Takahashi6, Akiko Takeo2, Yoko Tu9, Naoki Uchida18, Yusuke Yamashita11, Kazushige Obara2 (1.Graduate school of science, Tohoku University, 2.ERI, The University of Tokyo, 3.EPS, The University of Tokyo, 4.NIED, 5.JMA, 6.JAMSTEC, 7.University of British Columbia, 8.Northwestern University, 9.Hokkaido University, 10.AIST, 11.DPRI, Kyoto University, 12.BRGM, 13.University of the Ryukyus, 14.National Institute for Earth Physics, 15.IPGP, 16.University of California, 17.Kobe University, 18.RCPEVE, Graduate School of Science, Tohoku University)

Keywords:Tremors, Low frequency earthquakes, Very low frequency earthquakes, Slow slip events

Slow earthquakes have now been widely discovered in the world based on the recent development of geodetic and seismic observations. Many researchers detect a wide frequency range of slow earthquakes including low frequency tremors, low frequency earthquakes, very low frequency earthquakes and slow slip events by using various methods. Since these catalogs are provided by a variety of documents in different formats, previous studies utilizing various catalogs repeated complex procedures for preparing data. To make it more convenient to use such multiple catalogs and to promote researches on slow earthquakes, Scientific Research on Innovative Areas “Science of Slow Earthquakes” has released “Slow Earthquake Database” in December 2017, which compiles and provides a number of catalogs in a unified format in a single repository at the University of Tokyo (http://www-solid.eps.s.u-tokyo.ac.jp/~sloweq/). Users can also visualize the source locations of multiple slow earthquakes in the database in the map view on the website. The convenient access to the database encourages researchers to work on slow earthquakes, regardless of their backgrounds. This will eventually lead to collaborations with researchers in various fields and further understanding of the mechanisms, environmental conditions, and underlying physics of slow earthquakes. The database has a leading role in coordinating global standard of slow earthquake catalogs. We report the overview and update of the database.


This research was supported by JSPS KAKENHI Grant Number JP16H06472, JP16H06473, JP16H06474, JP16H06476, JP16H06477, JP16K21728 in Scientific Research on Innovative Areas “Science of Slow Earthquakes.”