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埃特纳火山火山构造演化的μ射线监测

Muographic monitoring of the volcano-tectonic evolution of Mount Etna.

作者信息

Lo Presti D, Riggi F, Ferlito C, Bonanno D L, Bonanno G, Gallo G, La Rocca P, Reito S, Romeo G

机构信息

Department of Physics and Astronomy "E. Majorana", University of Catania, Catania, Italy.

INFN, Sezione di Catania, Via S. Sofia 64, 95123, Catania, Italy.

出版信息

Sci Rep. 2020 Jul 9;10(1):11351. doi: 10.1038/s41598-020-68435-y.

DOI:10.1038/s41598-020-68435-y
PMID:32647356
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7347571/
Abstract

At Mount Etna volcano, the focus point of persistent tectonic extension is represented by the Summit Craters. A muographic telescope has been installed at the base of the North-East Crater from August 2017 to October 2019, with the specific aim to find time related variations in the density of volcanic edifice. The results are significant, since the elaborated images show the opening and evolution of different tectonic elements; in 2017, a cavity was detected months before the collapse of the crater floor and in 2018 a set of underground fractures was identified, at the tip of which, in June 2019, a new eruptive vent started its explosive activity, still going on (February, 2020). Although this is the pilot experiment of the project, the results confirm that muography could be a turning point in the comprehension of the plumbing system of the volcano and a fundamental step forward to do mid-term (weeks/months) predictions of eruptions. We are confident that an increment in the number of telescopes could lead to the realization of a monitoring system, which would keep under control the evolution of the internal dynamic of the uppermost section of the feeding system of an active volcano such as Mount Etna.

摘要

在埃特纳火山，持续构造伸展的焦点由山顶火山口代表。2017年8月至2019年10月，一台μ子成像望远镜安装在东北火山口底部，其特定目标是寻找火山结构体密度随时间的变化。结果意义重大，因为经过处理的图像显示了不同构造元素的形成和演化；2017年，在火山口底部坍塌前数月检测到一个空洞，2018年识别出一组地下裂缝，在其末端，2019年6月一个新的喷发口开始了爆炸活动，目前仍在进行（2020年2月）。尽管这是该项目的试点实验，但结果证实μ子成像可能是理解火山管道系统的一个转折点，也是朝着进行中期（数周/数月）火山喷发预测迈出的重要一步。我们相信，望远镜数量的增加可能会促成一个监测系统的实现，该系统将持续监测像埃特纳火山这样的活火山供料系统最上部内部动态的演变。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62de/7347571/0e986c3dad1b/41598_2020_68435_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62de/7347571/8ed23ca45687/41598_2020_68435_Fig1_HTML.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62de/7347571/658a899604ea/41598_2020_68435_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62de/7347571/a04c433bd0f0/41598_2020_68435_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62de/7347571/8f533d3743d6/41598_2020_68435_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62de/7347571/1f3071884e38/41598_2020_68435_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62de/7347571/4ddaec6ca42a/41598_2020_68435_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62de/7347571/65734059a1e5/41598_2020_68435_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62de/7347571/0e986c3dad1b/41598_2020_68435_Fig10_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62de/7347571/8ed23ca45687/41598_2020_68435_Fig1_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62de/7347571/74194eccaf53/41598_2020_68435_Fig2_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62de/7347571/96449979fc06/41598_2020_68435_Fig3_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62de/7347571/658a899604ea/41598_2020_68435_Fig4_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62de/7347571/a04c433bd0f0/41598_2020_68435_Fig5_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62de/7347571/8f533d3743d6/41598_2020_68435_Fig6_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62de/7347571/1f3071884e38/41598_2020_68435_Fig7_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62de/7347571/4ddaec6ca42a/41598_2020_68435_Fig8_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62de/7347571/65734059a1e5/41598_2020_68435_Fig9_HTML.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/62de/7347571/0e986c3dad1b/41598_2020_68435_Fig10_HTML.jpg

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