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

[SCG53-P01] Development of Slow Earthquake Database

*Masayuki Kano^1,2, 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 Poiata^14,15, 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.



Acknowledgments

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.”