Analysis of Seismic Data From Pinatubo Volcano, Philippines

本研究是分析在菲律宾吕宋岛皮纳图博火山爆发期间和之后收集的地震资料。1991年皮纳图博火山的灾难性喷发是本世纪最大的火山喷发之一，对菲律宾的人民，景观和经济基础设施以及世界气候产生了深远的影响。这次火山爆发也是历史上有记录的最严重的自然灾害之一，它提供了丰富而大量的地震数据，既可以用来了解爆炸性火山系统的动力学，也可以作为预测未来火山爆发的基础。主要目标是研究爆发前和爆发后的地震活动模式，包括正在进行的1992-93年火山危机；研究地震事件的波形特征；将这些研究与火山过程联系起来，包括1991年的潜水式和阵发性喷发，1992年的圆顶形成事件，火山碎屑流的二次爆炸，火山泥流和蒸汽喷射。这项研究涉及印第安纳大学、菲律宾火山学和地震学研究所、美国地质调查局和其他参与皮纳图博火山学研究的团体的科学家之间的密切合作。这项研究是国家减少地震危害计划的一个组成部分。

This research is to analyze seismic data collected during and after the eruption of Pinatubo Volcano, Luzon, Philippines. This cataclysmic 1991 eruption of Mt. Pinatubo was among the largest volcanic eruptions of the century, with profound effects on the people, landscape, and economic infrastructure of the Philippines and the climate of the world. The eruption was also one of the best recorded natural disasters in history, providing a rich and voluminous collection of seismological data that can be used both for understanding the dynamics of an explosive volcanic system and as a basis for predicting future volcanic eruptions. The primary objectives are to study the pre- and post-eruptive seismicity patterns, including the ongoing 1992-93 volcanic crisis; to study the wave-form characteristics of seismic events; to relate these studies to volcanic processes including the 1991 phreatic and paroxsysmal eruptions, the 1992 dome-forming event, secondary explosions on the pyroclastic flows, lahars, and steam jetting. The research involves close collaboration between scientists at Indiana University, the Philippine Institute of Volcanology and Seismology, the U.S. Geological Survey, and other groups involved in volcanological research at Mt. Pinatubo. This research is a component of the National Earthquake Hazard Reduction Program.