A Fundamental Experiment for the Long-term Sustainable Seismic Reflection Survey of Aira Caldera

Autor: TSUTSUI, Tomoki, TAMEGURI, Takeshi, MIKI, Daisuke, IGUCHI, Masato, SHINOHARA, Masanao
Jazyk: japonština
Rok vydání: 2021
Předmět:
Zdroj: 京都大学防災研究所年報. B. 64:86-100
ISSN: 0386-412X
Popis: A fundamental experiment has been performed to test feasibility of the long-term sustainable seismic reflection survey of underground activity in the depth of Aira Caldera. The experiment is the first attempt and is designed as peer-to-peer operation of a seismic source and a seismic array over the caldera. The purposes of the experiment are proof of seismic penetration of the selected source device, a clustered airgun, down to depth of the caldera through stacking seismograms. Several source parameter sets were tested. The most effective parameter set, 1050 cui chamber, 2000 psi and 10m depth operation, which was the smallest chamber size among the sets, has chosen as basic parameter set of consecutive experiments after considerations on the result.
Databáze: OpenAIRE