Emergence of Lava Dome from the Crater Lake of Kelud Volcano, East Java

Hidayati, Sri; Basuki, Ahmad; Kristianto, Kristianto; Mulyana, Iyan

doi:10.17014/ijog.v4i4.83

Cited by 10 publications

(20 citation statements)

References 3 publications

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“…However, we note that swarms of shallow lowfrequency events can also occur without culminating in eruption, e.g., Shishaldin, 2001-2004(Petersen 2007. Low-frequency and hybrid seismicity can also increase greatly as viscosity increases due to degassing, in which case magma may erupt as a viscous dome, e.g., Pinatubo, 1992 (Ramos et al 1996), and Kelut, 2007(Hidayati et al 2009), or it may stall just before extrusion, e.g., Usu Volcano, 1910and 1943-45 (Minakami et al 1951Yokoyama 2002;Goto et al 2004). (2) Seismic or geodetic evidence of relatively rapid magma ascent (i.e., cm to dm/s).…”

Section: Qualitative Assessments Of Eruption Likelihoodmentioning

confidence: 86%

Failed magmatic eruptions: late-stage cessation of magma ascent

2011

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When a volcano becomes restless, a primary question is whether the unrest will lead to an eruption. Here we recognize four possible outcomes of a magmatic intrusion: "deep intrusion", "shallow intrusion", "sluggish/viscous magmatic eruption", and "rapid, often explosive magmatic eruption". We define "failed eruptions" as instances in which magma reaches but does not pass the "shallow intrusion" stage, i.e., when magma gets close to, but does not reach, the surface. Competing factors act to promote or hinder the eventual eruption of a magma intrusion. Fresh intrusion from depth, high magma gas content, rapid ascent rates that leave little time for enroute degassing, opening of pathways, and sudden decompression near the surface all act to promote eruption, whereas decreased magma supply from depth, slow ascent, significant enroute degassing and associated increases in viscosity, and impingement on structural barriers all act to hinder eruption. All of these factors interact in complex ways with variable results, but often cause magma to stall at some depth before reaching the surface. Although certain precursory phenomena, such as rapidly escalating seismic swarms or rates of degassing or deformation, are good indicators that an eruption is likely, such phenomena have also been observed in association with intrusions that have ultimately failed to erupt. A perpetual difficulty with quantifying the probability of eruption is a lack of data, particularly on instances of failed eruptions. This difficulty is being addressed in part through the WOVOdat database. Papers in this volume will be an additional resource for scientists grappling with the issue of whether or not an episode of unrest will lead to a magmatic eruption.

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Section: Qualitative Assessments Of Eruption Likelihoodmentioning

confidence: 86%

Failed magmatic eruptions: late-stage cessation of magma ascent

2011

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“…After that in August, the sign was followed by an increase of the crater lake water temperature and CO2 concentration. The colour change of crater lake water also recorded from typical green to yellowish in August [1,3,7]. Meanwhile from deformation monitoring showed that continuous uplift occurred at the crater rim from July until early September [7].…”

Section: Sequence Of 2007 Eruption Eventmentioning

confidence: 93%

“…CVHGM raised the level of Kelud activity from level I (normal) to level II (watch) [3]. Two days later on 11 September, VT earthquakes reached 13 events in 5 hours with hypocenters distribution at 2 -4 km below the crater [1]. After that day, VT earthquake event occurred on average one each day.…”

Section: Sequence Of 2007 Eruption Eventmentioning

confidence: 99%

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Permutation entropy variation for 2007 effusive dome-forming eruption period of Kelud Volcano, Indonesia

et al. 2021

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The complexity of a system recorded in time series data can be measured statistically using permutation entropy (PE). The state of a system (e.g. regular, chaotic, random, etc.) that underlies the appearance of variations in time series can be determined with PE. Since volcanoes are considered as the complex dynamical system controlled by interactions of many processes. Permutation entropy can be applied to study the system mechanism of volcano. We utilized PE to study system mechanism of Kelud volcano in 2007 dome-forming eruption period, from 3 (KWH; KLD; UMBK) seismic stations with different distances from the crater lake. Then, we want to compare the results. The result of study shows that the PE pattern for each station is different. The unique PE pattern that can be used as an eruption precursor is only shown at KWH and KLD stations. This pattern began to appear 2.7 days before the eruption on 3 November 2007. Data from UMBK station doesn’t show unique PE pattern. The factors such as sensor distance from magmatic activity center, size, and type of eruption probably influenced the final PE result. Using PE as the addition to volcano monitoring can maximize efforts in mitigation activities.

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“…Kelud. Hidayati et al [1] responded to the need for detection before the eruption based on color changes to determine the distribution of the crater lake hiposentrum, and Bernard [2] based on water sampling directly of the crater lake, Nandaka and Agung [3] has added a device such as CCTV to observe the smoke activity before eruption. These phenomena known as high activity in the crater lake.…”

Section: Introductionmentioning

confidence: 99%

Mt. Kelud haze removal using color attenuation prior

Fresy

Yuniarno

Supeno

et al. 2017

IOP Conf. Ser.: Mater. Sci. Eng.

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Abstract. Kelud crater observation using closed-circuit television (CCTV) has not been used as the main guide in the world of volcanology. This is caused by observations manually by volcanologist who is not certain and depends on their ability and experience. In practice, there is still obstacles haze in the image taken from CCTV record. This paper present color attenuation prior method to eliminate haze on the digital image. The results obtained showed that the selected method is capable of eliminating sparse haze and moderate haze but not dense haze.

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Emergence of Lava Dome from the Crater Lake of Kelud Volcano, East Java

Cited by 10 publications

References 3 publications

Failed magmatic eruptions: late-stage cessation of magma ascent

Failed magmatic eruptions: late-stage cessation of magma ascent

Permutation entropy variation for 2007 effusive dome-forming eruption period of Kelud Volcano, Indonesia

Mt. Kelud haze removal using color attenuation prior

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