Earthquake activity in the Torishima Rift and Sofu Seamount, and its relationship to the October 2023 tsunamis in Japan

Earthquake activity in the Torishima Rift and Sofu Seamount, and its relationship to the October 2023 tsunamis in Japan

Abstract An increase in seismic activity was observed near the Izu-Torishima and Sofugan islands in the Izu-Ogasawara arc of Japan in early October 2023. Several M6-class earthquakes occurred from October 3 to 6, and tsunamis were recorded on October 5 and 6, associated with M6-class normal faulting...

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Main Authors: Koichiro Obana, Aki Ito, Toshiya Fujiwara, Masayuki Obayashi, Kentaro Imai, Yasuyuki Nakamura, Kenta Yoshida, Noriko Tada, Tomoya Nakajima, Hiroyuki Matsumoto, Gou Fujie, Satoru Tanaka, Shigeaki Ono, Shuichi Kodaira
Format: Article
Language:English
Published: SpringerOpen 2025-04-01
Series:Earth, Planets and Space
Subjects:
Torishima Rift
Sofu Seamount
Sofugan
Izu-Torishima
Back-arc rift
Izu-Ogasawara (Bonin) arc
Online Access:https://doi.org/10.1186/s40623-025-02185-x
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https://doi.org/10.1186/s40623-025-02185-x

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