DOI: 10.1016/j.earscirev.2020.103333
论文题名: Paleotsunami research along the Nankai Trough and Ryukyu Trench subduction zones – Current achievements and future challenges
作者: Fujiwara O. ; Goto K. ; Ando R. ; Garrett E.
刊名: Earth Science Reviews
ISSN: 00128252
出版年: 2020
卷: 210 语种: 英语
中文关键词: Earthquake forecasting
; Japanese islands
; Maximum possible tsunami
; Paleoseismology
; Tsunami deposit
英文关键词: earthquake recurrence
; forecasting method
; paleoseismicity
; seismology
; subduction zone
; tsunami
; Japan
; Nankai Trough
; Pacific Ocean
; Philippine Sea
; Ryukyu Trench
英文摘要: Located near Japan's most densely populated and industrially active region, the Nankai Trough subduction zone has long been highlighted as a high-risk area for damaging earthquakes and tsunamis. In contrast, less attention has been paid the adjacent Ryukyu Trench because historical and geological records are scarce. In order to develop better quantitative estimates of the timing and size of the earthquakes and tsunamis generated along these subduction zones, comprehensive studies using geological, seismological and historical methods have been conducted. Since the 1990s, studies of tsunami deposits in this region have contributed to our current understanding of the history of tsunamis over the last 6000 years. Following the 2011 Tōhoku earthquake and tsunami, paleotsunami research has especially focused on guiding and enhancing tsunami disaster management and mitigation measures. The last nine years have seen a rapid increase in paleotsunami data from the Nankai Trough and Ryukyu Trench coasts. These recent studies reveal that there are significant differences in the size and recurrence pattern of earthquakes and tsunamis along these subduction zones. For instance, large earthquakes have repeatedly occurred along the Nankai Trough every 100–200 years. On the other hand, large earthquakes and tsunamis may not have occurred over the last few thousand years at the junction between these subduction zones. There is also no evidence for the occurrence of large earthquakes along the northern and central Ryukyu Trench over this time period. Large earthquakes and tsunamis may have occurred every few hundred years at the southern end of the Ryukyu Trench. Nevertheless, data on the occurrence of these earthquakes are still insufficient, both in quantity and quality, to estimate the maximum size or recurrence pattern. © 2020 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/166082
Appears in Collections: 气候变化与战略
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作者单位: Geological Survey of Japan, National Institute of Advanced Industrial Science and Technology, AIST Tsukuba Central 7, 1-1-1 Higashi, Tsukuba, 305-8567, Japan; Department of Earth and Planetary Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan; Department of Environment and Geography, University of York, Wentworth Way, Heslington, York, YO10 5NG, United Kingdom; Geological Survey of Belgium, Royal Belgian Institute for Natural Sciences, Jennerstreet 13, Brussels, 1000, Belgium
Recommended Citation:
Fujiwara O.,Goto K.,Ando R.,et al. Paleotsunami research along the Nankai Trough and Ryukyu Trench subduction zones – Current achievements and future challenges[J]. Earth Science Reviews,2020-01-01,210