Dannie Hidayat

Earth Observatory of Singapore

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Benoît Taisne

Earth Observatory of Singapore

Dini Nurfiani

National Research and Innovation Agency

Hendra Gunawan

Bandung Institute of Technology

Christina Widiwijayanti

Earth Observatory of Singapore

Hetty Triastuty

Meteorological, Climatological, And Geophysical Agency

Shengji Wei

Earth Observatory of Singapore

Ahmad Basuki

Universitas Tulungagung

K. A. Macpherson

University of Alaska Fairbanks

G. S. Mattioli

The University of Texas at Arlington

Jeffrey S. Barker

University of Nevada, Las Vegas

Cooperative Institutions

Nanyang Technological University

Earth Observatory of Singapore

Indonesian Institute of Sciences

Centre National de la Recherche Scientifique

Montserrat Volcano Observatory

National Research and Innovation Agency

Institut de physique du globe de Paris

United States Geological Survey

Pennsylvania State University

University of Bristol

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Prototype PBO instrumentation of CALIPSO project captures world‐record lava dome collapse on Montserrat Volcano

Eos (2004)

G. S. Mattioli S. R. Young B. Voight R. Steven J. Sparks

This article is an update on the status of an innovative new project designed to enhance generally our understanding of andesitic volcano eruption dynamics and, specifically the monitoring and scientific infrastructure at the active Soufrière Hills Volcano (SHV), Montserrat. The project has been designated as the Caribbean Andesite Lava Island Precision Seismo‐geodetic Observatory known as CALIPSO. Its purpose is to investigate the dynamics of the entire SHV magmatic system using an integrated array of specialized instruments in four strategically located ∼200‐m‐deep boreholes in concert with several shallower holes and surface sites. The project is unique, as it represents the first, and only such borehole volcano‐monitoring array deployed at an andesitic stratovolcano.

Stratovolcano

Lava dome

10.1029/2004eo340001

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Citations (26)

A multidisciplinary monitoring network at Mayon volcano, Philippines : a collaborative effort between PHIVOLCS and EOS.

EGU (2012)

F. M. Schwandner Dannie Hidayat Eduardo P. Laguerta Alejandro V Baloloy Ramses Valerio

Mount Mayon in Albay province (Philippines) is an openly-degassing basaltic-andesitic stratovolcano, located on the northern edge of the northwest-trending OAS graben. Its latest eruptions were in Aug-Sept 2006 and Dec 2009. Mayon’s current status is PHIVOLCS’ level 1 with low seismicity dominated mostly local and regional tectonic earthquakes and continuous emission of SO2 from its summit crater. A research collaboration between the Earth Observatory of Singapore-NTU and the Philippine Institute of Volcanology and Seismology (PHIVOLCS) was initiated in 2009, aimed at developing a multi-disciplinary monitoring network around Mayon.

Stratovolcano

Summit

Volcanology

Volcanic hazards

Lahar

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Crustal thickness and velocity structure beneath Singapore’s seismic network

Journal of Asian Earth Sciences (2013)

K. A. Macpherson Dannie Hidayat Lujia Feng S. H. Goh

Seismic velocity

10.1016/j.jseaes.2012.12.027

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Citations (13)

Seismic noise test analysis for Lembang active fault observatory

AIP conference proceedings (2024)

Muhammad Hanif Rian Amukti Atin Nur Aulia Jauhari Arifin Yayat Sudrajat

10.1063/5.0202556

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Modeling the seismic source and tsunami generation of the December 12, 1992 Flores Island, Indonesia, earthquake

Pure and Applied Geophysics (1995)

Dannie Hidayat Jeffrey S. Barker Kenji Satake

Tsunami earthquake

Tide gauge

Slumping

Epicenter

Seafloor Spreading

10.1007/bf00874382

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Citations (37)

Wet vs. Dry the impact of water on infrasound eruption signals in crater lake volcanoes : April 2020 Anak Krakatau case study

AGU Fall Meeting Abstracts (2020)

Anna Perttu Benoît Taisne Dannie Hidayat K. Kristianto Masato Iguchi

Crater lake

Vulcanian eruption

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Receiver function structure beneath four seismic stations in the Sumatra region

Journal of Asian Earth Sciences (2012)

K. A. Macpherson Dannie Hidayat S. H. Goh

Forearc

Receiver function

10.1016/j.jseaes.2011.12.005

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Citations (35)

Modeling the Seismic Source and Tsunami Generation of the December 12, 1992 Flores Island, Indonesia, Earthquake

Birkhäuser Basel eBooks (1995)

Dannie Hidayat Jeffrey S. Barker Kenji Satake

On December 12, 1992 a large earthquake (M s 7.5) occurred just north of Flores Island, Indonesia which, along with the tsunami it generated, killed more than 2,000 people. In this study, teleseismic P and SH waves, as well as PP waves from distances up to 123°, are inverted for the orientations and time histories of multiple point sources. By repeating the inversion for reasonable values of depth, time separation and spatial separation, a 2-fault model is developed. Next, the vertical deformation of the seafloor is estimated from this fault model. Using a detailed bathymetric model, linear and nonlinear tsunami propagation models are tested. The data consist of a single tide gauge record at Palopo (650 km to the north), as well as tsunami runup height measurements from Flores Island and nearby islands. Assuming a tsunami runup amplification factor of two, the two-fault model explains the tide gauge record and the tsunami runup heights on most of Flores Island. It cannot, however, explain the large tsunami runup heights observed near Leworahang (on Hading Bay) and Riangkroko (on the northeast peninsula). Massive coastal slumping was observed at both of these locations. A final model, which in addition to the two faults, includes point sources of large vertical displacement at these two locations explains the observations quite well.

Tide gauge

Tsunami earthquake

Slumping

Epicenter

Seafloor Spreading

10.1007/978-3-0348-7279-9_10

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Citations (7)

Volcanic structure under Gede, West Java, Indonesia, results from three-dimensional local earthquake tomography and small long-period earthquake analysis

EGUGA (2019)

Dannie Hidayat Ahmad Basuki Nurrokhman Nurrokhman Kristianto Kristianto Benoît Taisne

Vulcanian eruption

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Citations (1)

The characteristic of January-February 2023 Eruption of Marapi Volcano

Dannie Hidayat Hetty Triastuty Dini Nurfiani Widiwijayanti Christina Yizhou Lou

After a long paused of eruption, Marapi Volcano in West Sumatra, Indonesia, started to erupt on 7 January 2023.  The eruption lasted for a couple of months.  It is followed by several months of quite period, the new, more violent eruption episodes occurred starting Dec 3, 2023 which are ongoing.  The study focus on episodes of January-February 2023 eruption to understand the volcano process, eruption behaviour compared to the past eruption and whether, in the hindsight there are precursors to the eruption that followed.  Compared to last recent episodes of eruptions, The January-February 2023 Marapi eruption consist of many explosions and degassing events. The time interval between explosions of Marapi in the beginning of eruptions, almost every hour there was an explosion, after a week time, the time interval became longer until no explosion occurred a month the first explosion.  We will also explore the mechanism of explosions from the infrasound data because the infrasound waveforms are simpler than those of the seismic waveforms. We observed the waveforms and the amplitude of infrasound in the beginning of eruption was simpler and very large at the station 300m from the active vent (> 50 Pa peak-to-peak) then the later explosions the amplitudes became smaller, and the waveforms became more oscillating coda.  This suggest the source, in the beginning it is filled with gas and fragmented magma and later the source is partially filled.  The explosions were also recorded by 4 other infrasound stations installed around the volcano up to the distance of 10 km from the vent.  Based on the observation seismicity several months prior to the first explosion of January-February 2023 Marapi eruption, there were distal volcano tectonic earthquakes clustered 4-5km the NW of the active crater.  The seismicity migrates to shallower depth below the active crater. This is supported by the observation of the tilt data from summit station and flank station, the tilt showed migration of pressure source for several months before the eruptions and that the magma pathway may probably located near the active fault zone.

Phreatic eruption

10.5194/egusphere-egu24-9964

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