Recursos de colección

Caltech Authors (160.010 recursos)

Repository of works by Caltech published authors.

Group = Caltech Tectonics Observatory. Sumatran Plate Boundary

Mostrando recursos 1 - 3 de 3

  1. Re-evaluation of the surface ruptures of the November 1951 earthquake series in eastern Taiwan, and its neotectonic implications

    Shyu, J. Bruce H.; Chung, Ling-Ho; Chen, Yue-Gau; Lee, Jian-Cheng; Sieh, Kerry
    The earthquakes of November 1951 constitute the most destructive seismic episode in the recorded history of the Longitudinal Valley, eastern Taiwan. However, information about their source parameters is sparse. To understand the relationship between the 1951 ruptures and new interpretations of the regional neotectonic architecture of the Longitudinal Valley, we re-evaluated the November 1951 ruptures by analyzing old documents, reports and photographs, and by interviewing local residents who experienced the earthquake. As a result, we have revised significantly the rupture map previously published. We divide the surface ruptures from south to north into the Chihshang, Yuli, and Rueisuei sections. The...
    (application/pdf; application/pdf) - 29-oct-2017

  2. Partial rupture of a locked patch of the Sumatra megathrust during the 2007 earthquake sequence

    Konca, A. Ozgun; Avouac, Jean-Philippe; Sladen, Anthony; Meltzner, Aron J.; Sieh, Kerry; Fang, Peng; Li, Zhenhong; Galetzka, John; Genrich, Jeff; Chlieh, Mohamed; Natawidjaja, Danny; Bock, Yehuda; Fielding, Eric J.; Ji, Chen; Helmberger, Don V.
    The great Sumatra–Andaman earthquake and tsunami of 2004 was a dramatic reminder of the importance of understanding the seismic and tsunami hazards of subduction zones [1,2,3,4]. In March 2005, the Sunda megathrust ruptured again, producing an event [5] of moment magnitude (Mw) 8.6 south of the 2004 rupture area, which was the site of a similar event in 1861 (ref. 6). Concern was then focused on the Mentawai area, where large earthquakes had occurred in 1797 (Mw = 8.8) and 1833 (Mw = 9.0) [6,7]. Two earthquakes, one of Mw = 8.4 and, twelve hours later, one of Mw =...
    (application/pdf) - 21-oct-2017

  3. Variation of initial 230Th/232Th and limits of high precision U–Th dating of shallow-water corals

    Shen, Chuan-Chou; Li, Kuei-Shu; Sieh, Kerry; Natawidjaja, Danny; Cheng, Hai; Wang, Xianfeng; Edwards, R. Lawrence; Lam, Doan Dinh; Hsieh, Yu-Te; Fan, Tung-Yung; Meltzner, Aron J.; Taylor, Fred W.; Quinn, Terrence M.; Chiang, Hong-Wei; Kilbourne, K. Halimeda
    One hundred eighty U–Th data, including 23 isochrons on 24 pristine modern and Holocene corals and 33 seawater samples, were analyzed using sector-field mass spectrometry to understand the variability of initial 230Th/232Th (230Th/232Th0). This dataset allows us to further assess the accuracy and precision of coral 230Th dating method. By applying quality control, including careful sampling and subsampling protocols and the use of contamination-free storage and workbench spaces, the resulting low procedural blanks give an equivalent uncertainty in age of only ±0.2–0.3 yr for 1–2 g of coral sample. Using site-specific 230Th/232Th0 values or isochron techniques, our study demonstrates that...
    - 28-ago-2017

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