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Author

Taro Arikawa

2 papers indexed here

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Open access Sep 2026

Tsunami excitation by localized subsidence associated with crater formation: a numerical case study for the October 2023 Sofu Seamount event

The October 2023 tsunami from Sofu Seamount showed large amplitudes relative to the associated seismic activity, suggesting atypical non-tectonic source processes. Comparisons of pre- and post-event bathymetric data revealed substantial topographic changes at Sofu Seamount, including the formation of a crater-like depr...

Tatsuhiko Tokuta, Kentaro Imai, Taro Arikawa · 0 citations
Open access Sep 2026

Bridging the Gap in Tsunami Runup Observations under Rough Sea States: High-Frequency Automated Image Analysis during the 2025 Kamchatka Event

Following the 2025 Kamchatka Earthquake (Mw 8.8), tsunamis were observed along the Pacific coast of Japan, as well as in many other coastal regions. This study applies an automated image analysis method to video footage from the Hasaki Oceanographical Research Station to perform continuous high-frequency wave runup m...

T. Shirai, Masayuki Banno, Taro Arikawa · 0 citations

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