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首页> 外文期刊>Journal of Volcanology and Geothermal Research >Rain-triggered lahars following the 2010 eruption of Merapi volcano, Indonesia: A major risk
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Rain-triggered lahars following the 2010 eruption of Merapi volcano, Indonesia: A major risk

机译：2010年印度尼西亚默拉比火山爆发后，降雨引发的拉哈尔群岛：主要风险

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摘要

The 2010 VEI 4 eruption of Merapi volcano deposited roughly ten times the volume of pyrodastic materials of the 1994 and 2006 eruptions, and is recognized as one of the most intense eruption since 1872. However, as the eruptive phase is now over, another threat endangers local communities: rain-triggered lahars. Previous papers on lahars at Merapi presented lahar-related risk following small-scale dome-collapse PDCs. Thus the aim of this study is to provide new insights on lahar-related risk following a large scale VEI 4 eruption. The paper highlights the high number of events (240) during the 2010-2011 rainy season (October 2010-May 2011). The frequency of the 2010-2011 lahars is also the most important ever recorded at Merapi. Lahars occurred in almost all drainages located under the active cone, with runout distances exceeding 15 km. The geomorphic impacts of lahars on the distal slope of the volcano are then explained as they directly threaten houses and infrastructures: creation of large corridors, avulsions, riverbank erosion and riverbed downcutting are detailed through local scale examples. Related damage is also studied: 860 houses damaged, 14 sabo-dams and 21 bridges destroyed. Sedimentological characteristics of volcanidastic sediments in lahar corridors are presented, with emphasis on the resource in building material that they represent for local communities. Risk studies should not forget that thousands of people are exposing themselves to lahar hazard when they quarry volcanidastic sediment on lahar corridors. Finally, the efficient community-based crisis management is explained, and shows how local people organize themselves to manage the risk: 3 fatalities were reported, although lahars reached densely populated areas. To summarize, this study provides an update of lahar risk issues at Merapi, with emphasis on the distal slope of the volcano where lahars had not occurred for 40 years, and where lahar corridors were rapidly formed.
机译：默拉皮火山的2010年VEI 4喷发沉积的量约为1994年和2006年喷发的火山岩物质的十倍，并且被认为是自1872年以来最强烈的喷发之一。然而，由于喷发阶段已经结束，另一种威胁处于危险之中当地社区：雨水触发的拉哈尔。先前有关默拉皮（Merapi）的拉哈尔（Lahar）的论文提出了小规模的圆顶塌陷PDC之后与拉哈尔相关的风险。因此，本研究的目的是在大规模VEI 4爆发后提供与Lahar相关风险的新见解。该论文重点介绍了2010-2011年雨季（2010年10月至2011年5月）的大量事件（240）。 2010-2011年拉哈尔的发生频率也是有史以来最重要的记录。 Lahars发生在活动锥下的几乎所有排水系统中，跳动距离超过15 km。然后解释了火山岩对火山远端坡度的地貌影响，因为它们直接威胁着房屋和基础设施：通过当地规模的实例详细描述了大型走廊的形成，撕裂，河岸侵蚀和河床塌陷。还研究了相关的破坏：860所房屋被毁，14座骚扰水坝和21座桥梁被毁。介绍了拉哈尔走廊火山岩沉积物的沉积学特征，并着重于它们代表当地社区的建筑材料资源。风险研究不应忘记，成千上万的人在拉哈尔走廊上的火山沉积物采石时正处于拉哈尔危险之中。最后，对有效的基于社区的危机管理进行了说明，并说明了当地人如何组织自身来管理风险：尽管劳拉人到达了人口稠密的地区，但仍有3人丧生。总而言之，这项研究提供了默拉皮（Merapi）的Lahar风险问题的最新信息，重点是火山的远端坡度，其中Lahars已有40年未发生，并且Lahar走廊迅速形成。

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  • 来源
    《Journal of Volcanology and Geothermal Research》 |2013年第1期|330-347|共18页
  • 作者

    Edouard de Belizal; Franck Lavigne; Danang Sri Hadmoko; Jean-Philippe Degeai; Gilang Aria Dipayana; Bachtiar Wahyu Mutaqin; Muh Aris Marfai; Marie Coquet; Baptiste Le Mauff; Anne-Kyria Robin; Celine Vidal; Noer Cholik; Nurnaning Aisyah;

  • 作者单位

    University Paris 1 Pantheon Sorbonne and University Paris-Est Creteil (UPEC), Laboratoire de Geographie Physique, CNRS UMR 8591, 1 place A. Briand, 92195 Meudon cedex, France;

    University Paris 1 Pantheon Sorbonne and University Paris-Est Creteil (UPEC), Laboratoire de Geographie Physique, CNRS UMR 8591, 1 place A. Briand, 92195 Meudon cedex, France;

    Center for Natural Disaster Studies (Pusat Studi Bencana Alam PSBA), Gadjah Mada University, Faculty of Geography, Bulaksumur, Yogyakarta, Indonesia;

    University Paris 1 Pantheon Sorbonne and University Paris-Est Creteil (UPEC), Laboratoire de Geographie Physique, CNRS UMR 8591, 1 place A. Briand, 92195 Meudon cedex, France;

    Center for Natural Disaster Studies (Pusat Studi Bencana Alam PSBA), Gadjah Mada University, Faculty of Geography, Bulaksumur, Yogyakarta, Indonesia;

    Center for Natural Disaster Studies (Pusat Studi Bencana Alam PSBA), Gadjah Mada University, Faculty of Geography, Bulaksumur, Yogyakarta, Indonesia;

    Center for Natural Disaster Studies (Pusat Studi Bencana Alam PSBA), Gadjah Mada University, Faculty of Geography, Bulaksumur, Yogyakarta, Indonesia;

    University Paris 1 Pantheon Sorbonne and University Paris-Est Creteil (UPEC), Laboratoire de Geographie Physique, CNRS UMR 8591, 1 place A. Briand, 92195 Meudon cedex, France;

    University Paris 1 Pantheon Sorbonne and University Paris-Est Creteil (UPEC), Laboratoire de Geographie Physique, CNRS UMR 8591, 1 place A. Briand, 92195 Meudon cedex, France;

    University Paris 1 Pantheon Sorbonne and University Paris-Est Creteil (UPEC), Laboratoire de Geographie Physique, CNRS UMR 8591, 1 place A. Briand, 92195 Meudon cedex, France;

    Institut de Physique du Globe de Paris, CNRS UMR 7154, tquipe de Geologie des Systemes Volcaniques, 4 place Jussieu, 75252 Paris Cedex 05, France;

    BPPTK (Balai Penyeledikan dan Pengembangan Teknologi Kegunungapian), Jalan Cendana 15, Yogyakarta 55166, Indonesia;

    BPPTK (Balai Penyeledikan dan Pengembangan Teknologi Kegunungapian), Jalan Cendana 15, Yogyakarta 55166, Indonesia;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    Rain-triggered lahars; Lahar corridors; Lahar deposits; Crisis management; Merapi volcano;

    机译：雨水触发的拉哈斯;拉哈尔走廊;拉哈尔矿床;危机管理;默拉皮火山;

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