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Increment in the volcanic unrest and number of eruptions after the 2012 large earthquakes sequence in Central America
Author(s)
Language
English
Obiettivo Specifico
5V. Processi eruttivi e post-eruttivi
Status
Published
JCR Journal
JCR Journal
Peer review journal
Yes
Title of the book
Issue/vol(year)
/11 (2021)
Publisher
Nature PG
Pages (printed)
22417
Issued date
November 17, 2021
Alternative Location
Abstract
Understanding the relationship cause/effect between tectonic earthquakes and volcanic eruptions is a striking topic in Earth Sciences. Volcanoes erupt with variable reaction times as a consequence of the impact of seismic waves (i.e. dynamic stress) and changes in the stress field (i.e. static stress). In 2012, three large (Mw ≥ 7.3) subduction earthquakes struck Central America within a period of 10 weeks; subsequently, some volcanoes in the region erupted a few days after, while others took months or even years to erupt. Here, we show that these three earthquakes contributed to the increase in the number of volcanic eruptions during the 7 years that followed these seismic events. We found that only those volcanoes that were already in a critical state of unrest eventually erupted, which indicates that the earthquakes only prompted the eruptions. Therefore, we recommend the permanent monitoring of active volcanoes to reveal which are more susceptible to culminate into eruption in the aftermath of the next large-magnitude earthquake hits a region.
Type
article
File(s)
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Name
González Unrest vs EQs SR 2021.pdf
Description
Open Access published article
Size
2.25 MB
Format
Adobe PDF
Checksum (MD5)
7ddb82c4e10f89915a3234f8714e4154