有馬-高槻断層帯の先史・歴史地震に伴う横ずれ地表変位

活断層研究 Issue 24 Page 157-165 published_at 2004
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Title ( jpn )
有馬-高槻断層帯の先史・歴史地震に伴う横ずれ地表変位
Title ( eng )
Right-lateral offsets on the Arima-Takatsuki fault zone in southwest Japan associated with prehistoric and historic earthquakes
Creator
Tsutsumi Hiroyuki
Tani Miyuki
Source Title
活断層研究
Issue 24
Start Page 157
End Page 165
Abstract
The Arima-Takatsuki fault zone consists of a series of ENE-trending right-lateral strike-slip faults along the northern margin of the Osaka plain. This fault zone is considered to have ruptured during the 1596 Keicho-Fushimi earthquake based on paleoseismic trench excavations across the fault zone conducted by the Geological Survey of Japan and numerous liquefaction features on archaeological sites in Kobe-Osaka-Kyoto areas. The surface offset during the earthquake was estimated to have been about 3 m based on offsets of rice-paddy dikes at two localities. In order to search for more data on the surficial slip during the 1596 earthquake as well as evidence for prehistoric earthquakes, we have interpreted large-scale aerial photographs and conducted geomorphic field investigations. We have identified several localities along the fault zone where geomorphic and/or artificial features are systematically offset about 3 m, confirming previous estimates of the surficial slip during the 1596 earthquake. Larger displacements of older geomorphic features also suggest repeated right-lateral slip on the fault zone in late Holocene time.
Keywords
有馬-高槻断層帯
最新活動
横ずれ変位量
Arima-Takatsuki fault zone
most recent faulting event
amount of strike-slip displacement
NDC
General geography. Description and travel [ 290 ]
Language
jpn
Resource Type journal article
Publisher
活断層研究会
Date of Issued 2004
Publish Type Version of Record
Access Rights open access
Source Identifier
[ISSN] 0918-1024
[NCID] AN10157356
[URI] http://topo.earth.chiba-u.jp/afr/index.htm