Migration of seismic activity associated with phreatic eruption at Merapi volcano, Indonesia

Métaxian, Jean-Philippe; Santoso, Agus; Caudron, Corentin; Cholik, Noer; Labonne, Claire; Poiata, Natalia; Beauducel, François; Monteiller, Vadim; Fahmi, Ahmad Ali; Rizal, Muchammad Husni; Nandaka, I Gusti Made Agung

doi:10.1016/j.jvolgeores.2020.106795

Cited by 10 publications

(5 citation statements)

References 59 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Stix and de Moor (2018) also noted that VLPs and tremor appear to be reliable indicators of pressurization, but with variable timescales. However, some exceptions exist, e.g., a phreatic eruption at Merapi in 2014 that occurred without any VLP (Métaxian et al (2020)). Our study and Park et al (2020) highlighted that VLPs at Whakaari/White Island were also closely related to periods of elevated activity.…”

Section: Comparisons With Other Volcanoesmentioning

confidence: 99%

A quest for unrest in multiparameter observations at Whakaari/White Island volcano, New Zealand 2007–2018

Caudron

Girona

Jolly

et al. 2021

Earth Planets Space

Self Cite

View full text Add to dashboard Cite

The Whakaari/White Island volcano, located ~ 50 km off the east coast of the North Island in New Zealand, has experienced sequences of quiescence, unrest, magmatic and phreatic eruptions over the last decades. For the last 15 years, seismic data have been continuously archived providing potential insight into this frequently active volcano. Here we take advantage of this unusually long time series to retrospectively process the seismic data using ambient noise and tremor-based methodologies. We investigate the time (RSAM) and frequency (Power Spectral Density) evolution of the volcanic tremor, then estimate the changes in the shallow subsurface using the Displacement Seismic Amplitude Ratio (DSAR), relative seismic velocity (dv/v) and decorrelation, and the Luni-Seismic Correlation (LSC). By combining our new set of observations with the long-term evolution of earthquakes, deformation, visual observations and geochemistry, we review the activity of Whakaari/White Island between 2007 and the end of 2018. Our analysis reveals the existence of distinct patterns related to the volcano activity with periods of calm followed by cycles of pressurization and eruptions. We finally put these results in the wider context of forecasting phreatic eruptions using continuous seismic records.

show abstract

Section: Comparisons With Other Volcanoesmentioning

confidence: 99%

A quest for unrest in multiparameter observations at Whakaari/White Island volcano, New Zealand 2007–2018

Caudron

Girona

Jolly

et al. 2021

Earth Planets Space

Self Cite

View full text Add to dashboard Cite

show abstract

“…If we expand our discussion on the magmatic eruptions, the eruptive activity of the Merapi volcano in 2010 is an example of having considerable pre‐eruptive VLP activity (Jousset et al., 2013). Instead, there are also several eruptive activities without VLP at the initial stage, such as another activity of Merapi from 2012 (Métaxian et al., 2020), the Showa crater of Sakurajima from 2006 (Iguchi, 2013), and Mt. St. Helens from 1980 (Waite et al., 2008).…”

Section: Discussionmentioning

confidence: 99%

The Onset, Middle, and Climax of Precursory Hydrothermal Intrusion of the 2018 Phreatic Eruption at Kusatsu‐Shirane Volcano

Yamada,

Terada,

Noguchi

et al. 2023

JGR Solid Earth

View full text Add to dashboard Cite

Triggering intrusions of phreatic eruptions are often observed as seismic and ground deformation signals on a time scale of minutes. The current understanding of hydrothermal intrusions still needs improvement to obtain insight into the eruption scale from the observables. We examine local geophysical data from the precursory hydrothermal intrusion of the 2018 phreatic eruption of Kusatsu‐Shirane volcano. To achieve an integrated intrusion model, we divide analyzing time window into the onset, middle, and climax. Focusing on the transient response of tilt data for the sudden pressurization, we estimate a vertical tensile opening (1.7 × 103 m3/s in 40 s) at 1.1 km depth for the intrusion onset. Pressurization can represent the start of vapourization. Very long period (VLP, 0.033–0.1 Hz) seismic signals are adopted to constrain the middle and climax phases. We obtained two sequential semi‐horizontal tensile crack oscillation sources with peak volume changes of 3.6 × 104–1.9 × 105 m3 at 0.3–0.6 km depths. The second VLP source acted as a final trigger of the eruption to cause depressurization in the shallow portion of the intruded region, which is constrained as having reached 0.1 km depth by surface deformation. Simultaneously, we find another depressurization originated from depth in the climax due to a decrease in the hydrothermal intrusion rate. Through comparison with the 2014 Ontake phreatic eruption, the total inflation volume may correlate with eruption scales. Intruded hydrothermal fluid and local structure characteristics also may have to be considered to evaluate the eruptions scales from inferred signal source intensity.

show abstract

“…The position of this superficial low velocity body is consistent with the recent eruptive activity, which is located in the south region of the volcano. Analyzing seismic signals produced by phreatic explosive activity that occurred in 2014, Métaxian et al (2020) Figure 6. Trade-off curves used to determine the optimal regularization parameter.…”

Section: R E S U Lt S a N D Discussionmentioning

confidence: 99%

Imaging of a magma system beneath the Merapi Volcano complex, Indonesia, using ambient seismic noise tomography

Yudistira

Métaxian

Putriastuti

et al. 2021

Geophysical Journal International

View full text Add to dashboard Cite

Summary Mt. Merapi, which lies just north of the city of Yogyakarta in Java, Indonesia, is one of the most active and dangerous volcanoes in the world. Thanks to its subduction zone setting, Mt Merapi is a stratovolcano, and rises to an elevation of 2968 m above sea level. It stands at the intersection of two volcanic lineaments, Ungaran–Telomoyo–Merbabu–Merapi (UTMM) and Lawu–Merapi–Sumbing–Sindoro–Slamet, which are oriented north-south and west-east, respectively. Although it has been the subject of many geophysical studies, Mt Merapi's underlying magmatic plumbing system is still not well understood. Here, we present the results of an ambient seismic noise tomography study, which comprise of a series of Rayleigh wave group velocity maps and a 3-D shear wave velocity model of the Merapi-Merbabu complex. A total of 10 months of continuous data (October 2013–July 2014) recorded by a network of 46 broadband seismometers were used. We computed and stacked daily cross-correlations from every pair of simultaneously recording stations to obtain the corresponding inter-station empirical Green's functions. Surface wave dispersion information was extracted from the cross-correlations using the multiple filtering technique, which provided us with an estimate of Rayleigh wave group velocity as a function of period. The group velocity maps for periods 3–12 s were then inverted to obtain shear wave velocity structure using the neighbourhood algorithm. From these results, we observe a dominant high velocity anomaly underlying Mt. Merapi and Mt. Merbabu with a strike of 152° N, which we suggest is evidence of old lava dating from the UTMM double-chain volcanic arc which formed Merbabu and Old Merapi. We also identify a low velocity anomaly on the southwest flank of Merapi which we interpret to be an active magmatic intrusion.

show abstract

Migration of seismic activity associated with phreatic eruption at Merapi volcano, Indonesia

Cited by 10 publications

References 59 publications

A quest for unrest in multiparameter observations at Whakaari/White Island volcano, New Zealand 2007–2018

A quest for unrest in multiparameter observations at Whakaari/White Island volcano, New Zealand 2007–2018

The Onset, Middle, and Climax of Precursory Hydrothermal Intrusion of the 2018 Phreatic Eruption at Kusatsu‐Shirane Volcano

Imaging of a magma system beneath the Merapi Volcano complex, Indonesia, using ambient seismic noise tomography

Contact Info

Product

Resources

About