RAPID: Seismic deployment in response to the 2018 Kilauea Lower East Rift Zone eruption and summit explosions

RAPID：针对 2018 年基拉韦厄东部裂谷带喷发和山顶爆炸而进行的地震部署

• 批准号: 1839100
• 负责人: Fan-Chi Lin
• 金额: $ 4.85万
• 依托单位: University of Utah
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2018
• 资助国家: 美国
• 起止时间: 2018-06-15 至 2019-05-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1839100&HistoricalAwards=false
• 关键词: RAPID; Seismic; deployment; response; 2018

The 2018 Kilauea volcano eruptive activities provide a rare opportunity to study the dynamic process of a volcano eruption and image the detailed magma plumbing system. In this RAPID seismic deployment project, the investigators plan to deploy a temporary seismometer array around the Kilauea volcano system including the summit within the Hawaii Volcanoes National Park and lower east rift zone in the Puna District of Hawaii. The data recorded by the seismometers will help improve knowledge on how magma moves underground and its eruption process at the surface. The ongoing Kilauea volcanic activity produces a continuous threat to the residents and visitors of the Big Island of Hawaii. A better understanding of the magma pathways, the current status of the magma body, and the dynamic process associated with the volcanic activity will help USGS and local authorities to better develop future mitigation plans. The researchers will work closely with the Hawaiian Volcano Observatory and Hawaii Volcanoes National Park to conduct the experiment and disseminate the scientific findings through their education and outreach programs to their over 2 million annual visitors.The goal of this RAPID proposal is to deploy a dense array of geophones on the southern region of the Big Island of Hawaii in response to the recent Kilauea volcanic activity. The reserachers propose to deploy three separate arrays that will cover the Kilauea summit, the Lower East Rift Zone (LERZ), and the area in between these two regions. The investigators plan to deploy ~110 autonomous three component Zland geophones to record continuous seismic signals for 30 days. Combined with the existing permanent seismic network, better earthquake and tremor source locations as well as 4D subsurface structure can be determined. The experiment should provide an unprecedented dataset to study Kilauea's volcanic plumbing system and magma migration. The raw seismic waveforms collected through the experiment will be archived at the IRIS DMC and distributed to the scientific community for analysis and redistribution immediately following the conclusion of the experiment.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

2018年的基拉韦厄火山喷发活动为研究火山喷发的动态过程和详细的岩浆管道系统提供了难得的机会。在这个快速地震部署项目中，调查人员计划在基拉韦厄火山系统周围部署一个临时地震仪阵列，包括夏威夷火山国家公园内的山顶和夏威夷普纳区的东部裂谷带。地震仪记录的数据将有助于提高对岩浆如何在地下移动及其在地表喷发过程的认识。持续不断的基拉韦厄火山活动对夏威夷大岛的居民和游客造成了持续的威胁。更好地了解岩浆通道、岩浆体的现状以及与火山活动相关的动态过程，将有助于美国地质勘探局和地方当局更好地制定未来的缓解计划。 研究人员将与夏威夷火山观测站和夏威夷火山国家公园密切合作，进行实验，并通过他们的教育和推广计划向每年超过200万的游客传播科学发现。这个RAPID提案的目标是在夏威夷大岛南部地区部署密集的地震检波器阵列，以应对最近的基拉韦厄火山活动。研究人员建议部署三个独立的阵列，将覆盖基拉韦厄峰会，下东裂谷带（LERZ），以及这两个地区之间的地区。 调查人员计划部署约110个自主三分量Zland地震检波器，以记录连续30天的地震信号。结合现有的永久地震台网，可以确定更好的地震和震颤源位置以及4D地下结构。该实验将为研究基拉韦厄的火山管道系统和岩浆迁移提供前所未有的数据集。通过实验收集的原始地震波形将在IRIS DMC存档，并在实验结束后立即分发给科学界进行分析和重新分配。该奖项反映了NSF的法定使命，并通过使用基金会的知识价值和更广泛的影响审查标准进行评估，被认为值得支持。

项目成果

Spatiotemporal Seismic Structure Variations Associated With the 2018 Kīlauea Eruption Based on Temporary Dense Geophone Arrays

基于临时密集地震检波器阵列的与 2018 年凯劳埃亚火山喷发相关的时空地震结构变化

• DOI: 10.1029/2019gl086668
• 发表时间: 2020
• 期刊: Geophysical Research Letters
• 影响因子: 5.2
• 作者: Wu, Sin‐Mei;Lin, Fan‐Chi;Farrell, Jamie;Shiro, Brian;Karlstrom, Leif;Okubo, Paul;Koper, Keith
• 通讯作者: Koper, Keith