TY - JOUR
T1 - Holocene geohazard events on the southern Izu Peninsula, central Japan
AU - Kitamura, Akihisa
AU - Ohashi, Yoko
AU - Ishibashi, Hidemi
AU - Miyairi, Yosuke
AU - Yokoyama, Yusuke
AU - Ikuta, Ryoya
AU - Ito, Yasuhiro
AU - Ikeda, Masayuki
AU - Shimano, Taketo
N1 - Funding Information:
We thank landowners in the study area for allowing us access to their land for our research activities. We also thank Dr. A. Yasuda, Ms. N. Hokanishi and Ms. N. Takagi of Earthquake Research Institute, the University of Tokyo for their technical support for EPMA analysis. We thank A. Stallard for improving the English in the manuscript. This study was funded by a grant from Strategic Funds for the Promotion of Science, Technology and the Network of Universities in Shizuoka, and Grants-in-Aid ( 26287126 ) awarded by the Japan Society for Promotion of Science . This study was conducted under permit from the Agency for Cultural Affairs, Kanto Regional the Ministry of the Environment.
PY - 2016/3/18
Y1 - 2016/3/18
N2 - Faunal compositions and 14C ages of emerged sessile assemblages at four sites in the southern part of Izu Peninsula, central Japan, indicate that co-seismic uplift occurred at 1256-950 BC, AD 1000-1270, AD 1430-1660, and AD 1506-1815. The data suggest that the stress field in the southern part of Izu Peninsula changed to its current north-south compression at ca. 3100 BP, and that the recurrence intervals for uplift-inducing earthquakes have become shorter during the last 1000 years. The main faults responsible for this seismicity appear to be located offshore from the south part of Izu Peninsula. This study also examined a 1-cm-thick scoria layer deposited between 6940 and 6810 cal BP in the south part of Izu Peninsula. The layer, which had not been previously examined petrographically, consists of scoria grains derived from Izu-Oshima volcano located 40 km east of the study area, rather than from volcanoes located on Izu Peninsula itself.
AB - Faunal compositions and 14C ages of emerged sessile assemblages at four sites in the southern part of Izu Peninsula, central Japan, indicate that co-seismic uplift occurred at 1256-950 BC, AD 1000-1270, AD 1430-1660, and AD 1506-1815. The data suggest that the stress field in the southern part of Izu Peninsula changed to its current north-south compression at ca. 3100 BP, and that the recurrence intervals for uplift-inducing earthquakes have become shorter during the last 1000 years. The main faults responsible for this seismicity appear to be located offshore from the south part of Izu Peninsula. This study also examined a 1-cm-thick scoria layer deposited between 6940 and 6810 cal BP in the south part of Izu Peninsula. The layer, which had not been previously examined petrographically, consists of scoria grains derived from Izu-Oshima volcano located 40 km east of the study area, rather than from volcanoes located on Izu Peninsula itself.
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U2 - 10.1016/j.quaint.2015.04.021
DO - 10.1016/j.quaint.2015.04.021
M3 - Article
AN - SCOPUS:84929650404
VL - 397
SP - 541
EP - 554
JO - Quaternary International
JF - Quaternary International
SN - 1040-6182
ER -