...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Seismological research letters >Quantifying 10 Years of Improved Earthquake-Monitoring Performance in the Caribbean Region
【24h】

Quantifying 10 Years of Improved Earthquake-Monitoring Performance in the Caribbean Region

机译：量化加勒比地区10年改进的地震监测性能

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Over 75 tsunamis have been documented in the Caribbean and adjacent regions during the past 500 years. Since 1500, at least 4484 people are reported to have perished in these killer waves. Hundreds of thousands are currently threatened along the Caribbean coastlines. Were a great tsunamigenic earthquake to occur in the Caribbean region today, the effects would potentially be catastrophic due to an increasingly vulnerable region that has seen significant population increases in the past 40-50 years and currently hosts an estimated 500,000 daily beach visitors from North America and Europe, a majority of whom are not likely aware of tsunami and earthquake hazards. Following the magnitude 9.1 Sumatra-Andaman Islands earthquake of 26 December 2004, the United Nations Educational, Scientific and Cultural Organization (UNESCO) Intergovernmental Coordination Group (ICG) for the Tsunami and other Coastal Hazards Early Warning System for the Caribbean and Adjacent Regions (CARIBE-EWS) was established and developed minimum performance standards for the detection and analysis of earthquakes. In this study, we model earthquake-magnitude detection threshold and P-wave detection time and demonstrate that the requirements established by the UNESCO ICG CARIBE-EWS are met with 100% of the network operating. We demonstrate that earthquake-monitoring performance in the Caribbean Sea region has improved significantly in the past decade as the number of real-time seismic stations available to the National Oceanic and Atmospheric Administration tsunami warning centers have increased. We also identify weaknesses in the current international network and provide guidance for selecting the optimal distribution of seismic stations contributed from existing real-time broadband national networks in the region.
机译：在过去的500年中，在加勒比海地区和邻近地区记录了超过75种海啸。自1500年以来，据报道至少有4484人在这些杀手浪潮中丧生。目前，在加勒比海沿岸成千上万的人受到威胁。如果今天在加勒比海地区发生海啸大地震，由于该地区日益脆弱，在过去40至50年中人口大量增加，目前估计每天有500,000名来自北美的海滩游客，因此造成的后果可能是灾难性的和欧洲，其中大多数人不太可能意识到海啸和地震的危害。在2004年12月26日发生的苏门答腊-安达曼群岛9.1级地震之后，联合国教育，科学及文化组织（教科文组织）政府间协调小组（ICG）针对加勒比海和邻近地区的海啸和其他沿海灾害预警系统（CARIBE） -EWS）的建立并制定了用于地震检测和分析的最低性能标准。在这项研究中，我们对地震震级检测阈值和P波检测时间进行建模，并证明了联合国教科文组织ICG CARIBE-EWS建立的要求可以在100％的网络运行中得到满足。我们证明，在过去的十年中，随着国家海洋与大气管理局海啸预警中心可用的实时地震台数的增加，加勒比海地区的地震监测性能有了显着提高。我们还将找出当前国际网络中的弱点，并为选择由该地区现有的实时宽带国家网络贡献的地震台站的最佳分布提供指导。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号