| 项目编号: | 1620977
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| 项目名称: | RAPID: Geochemical and Geophysical Observations of the 2015 Eruption of Volcan Momotombo, Nicaragua |
| 作者: | Peter LaFemina
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| 承担单位: | Pennsylvania State Univ University Park
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| 批准年: | 2016
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| 开始日期: | 2016-01-01
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| 结束日期: | 2017-12-31
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| 资助金额: | 40432
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Geosciences - Earth Sciences
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| 英文关键词: | momotombo
; volcano
; nicaragua
; strombolian eruption
; ongoing eruption
; ash eruption
; volcan momotombo
; precursory volcano
; momotombo eruption
; active central american volcanic arc
; rapid funding
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| 英文摘要: | Volcan Momotombo, Nicaragua is a basaltic to basaltic-andesite stratovolcano located along the active Central American Volcanic Arc. It last erupted in 1905. Seismic swarms have been occurring beneath Momotombo for the past year. A major seismic swarm, which included an M4.7 earthquake, began on November 24, 2015, and culminated in gas and ash eruptions beginning at 7:49 am (local time) on December 1, 2015. By the evening of December 1, Momotombo was in strombolian eruption with columns to ~1 km and lava flows flowing down the northern flank of the volcano. At this stage the Momotombo eruption appears to be characterized by both small-volume lava and small-volume tephra emissions.
This RAPID funding will support a multi-disciplinary team that will travel to Nicaragua to collaborate with our INETER colleagues to: 1) install GPS instruments around the volcano and analyze existing GPS data; 2) install four broadband seismic instruments to study magma storage and migration beneath Momotombo; 3) make observations of the ongoing eruption to study the style of eruptive activity and collect tephra samples to investigate plume dynamics; 4) collect samples of tephra and lava flows for geochemical analyses; and 5) investigate precursory volcano and crustal deformation at Momomtombo using InSAR. This project leverages support from the NSF-funded COCONet project, the CEOS initiative, and existing infrastructure from previous NSF-funded projects led by members of this team.
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| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/93000
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| Appears in Collections: | 全球变化的国际研究计划
科学计划与规划
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| Recommended Citation: | |
Peter LaFemina. RAPID: Geochemical and Geophysical Observations of the 2015 Eruption of Volcan Momotombo, Nicaragua. 2016-01-01.
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