The b-value of the Kelud Volcano in the Last Three Decades

Kelud volcano is located in the Kediri sub-district, East Java Province, Indonesia. This volcano is still active, with total population, in the radius of 10 km, is around 10 thousand people. Kelud volcano is a popular tourist destination. On the weekend, total visitor can reach 5,000 people per-day....

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Autores principales:	Niasari Sintia Windhi, Nugraheni Lusia Rita, Maghfira Puspita Dian
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/896af3712e684f58b8bf5dd332b09767
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spelling	oai:doaj.org-article:896af3712e684f58b8bf5dd332b097672021-12-02T17:11:56ZThe b-value of the Kelud Volcano in the Last Three Decades2267-124210.1051/e3sconf/202132501019https://doaj.org/article/896af3712e684f58b8bf5dd332b097672021-01-01T00:00:00Zhttps://www.e3s-conferences.org/articles/e3sconf/pdf/2021/101/e3sconf_icst2021_01019.pdfhttps://doaj.org/toc/2267-1242Kelud volcano is located in the Kediri sub-district, East Java Province, Indonesia. This volcano is still active, with total population, in the radius of 10 km, is around 10 thousand people. Kelud volcano is a popular tourist destination. On the weekend, total visitor can reach 5,000 people per-day. These people are at high risk when the Kelud volcano erupts. The last eruption of the Kelud volcano occurred in 2014 and was explosive eruption. Previously, there was an effusive eruption in 2007. These two types of eruption have its own geo hazard risk. Thus, predict the eruption type could help hazard mitigation. In this study, two data sets of earthquakes, 1990-2007 and 2008-2020, were analysed to determine the b-value and its relationship to the eruption type of the Kelud volcano. The calculation of the b-value uses the Gutenberg-Richter relationship. Calculation of the b-value in 2007, when there was an effusive eruption, showed a value of 2.27, while in 2014 (when there was an explosive eruption) was 1.85. After 2009, the curve of the b-value against time shows decrease. As a long term precursor of the Kelud activity, this b-value curve should be analysed continuously, besides volcano tectonic seismicity monitoring.Niasari Sintia WindhiNugraheni Lusia RitaMaghfira Puspita DianEDP SciencesarticleEnvironmental sciencesGE1-350ENFRE3S Web of Conferences, Vol 325, p 01019 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Environmental sciences GE1-350
spellingShingle	Environmental sciences GE1-350 Niasari Sintia Windhi Nugraheni Lusia Rita Maghfira Puspita Dian The b-value of the Kelud Volcano in the Last Three Decades
description	Kelud volcano is located in the Kediri sub-district, East Java Province, Indonesia. This volcano is still active, with total population, in the radius of 10 km, is around 10 thousand people. Kelud volcano is a popular tourist destination. On the weekend, total visitor can reach 5,000 people per-day. These people are at high risk when the Kelud volcano erupts. The last eruption of the Kelud volcano occurred in 2014 and was explosive eruption. Previously, there was an effusive eruption in 2007. These two types of eruption have its own geo hazard risk. Thus, predict the eruption type could help hazard mitigation. In this study, two data sets of earthquakes, 1990-2007 and 2008-2020, were analysed to determine the b-value and its relationship to the eruption type of the Kelud volcano. The calculation of the b-value uses the Gutenberg-Richter relationship. Calculation of the b-value in 2007, when there was an effusive eruption, showed a value of 2.27, while in 2014 (when there was an explosive eruption) was 1.85. After 2009, the curve of the b-value against time shows decrease. As a long term precursor of the Kelud activity, this b-value curve should be analysed continuously, besides volcano tectonic seismicity monitoring.
format	article
author	Niasari Sintia Windhi Nugraheni Lusia Rita Maghfira Puspita Dian
author_facet	Niasari Sintia Windhi Nugraheni Lusia Rita Maghfira Puspita Dian
author_sort	Niasari Sintia Windhi
title	The b-value of the Kelud Volcano in the Last Three Decades
title_short	The b-value of the Kelud Volcano in the Last Three Decades
title_full	The b-value of the Kelud Volcano in the Last Three Decades
title_fullStr	The b-value of the Kelud Volcano in the Last Three Decades
title_full_unstemmed	The b-value of the Kelud Volcano in the Last Three Decades
title_sort	b-value of the kelud volcano in the last three decades
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/896af3712e684f58b8bf5dd332b09767
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The b-value of the Kelud Volcano in the Last Three Decades

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