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Jon J. Major,Luis E. Lara
Pág. 196 - 215
Chaitén Volcano erupted unexpectedly in May 2008 in one of the largest eruptions globally since the 1990s. It was the largest rhyolite eruption since the great eruption of Katmai Volcano in 1912, and the first rhyolite eruption to have at least some of i...
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Han Soo Lee, Ricard Diago Sambuaga and Constanza Flores
On 22 December 2018, the volcanic eruption of Anak Krakatoa in the Sunda Strait, Indonesia, triggered a tsunami causing 437 deaths. The highest death toll and the second highest number of damaged houses were recorded in Panimbang. This study proposes opt...
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Alessandro Bonforte, Flavio Cannavò, Salvatore Gambino and Francesco Guglielmino
We propose a multi-temporal-scale analysis of ground deformation data using both high-rate tilt and GNSS measurements and the DInSAR and daily GNSS solutions in order to investigate a sequence of four paroxysmal episodes of the Voragine crater occurring ...
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Giovanni Zanchetta,Marta Pappalardo,Alessio Di Roberto,Monica Bini,Ilenia Arienzo,Ilaria Isola,Adriano Ribolini,Gabriella Boretto,Enrique Fuck,Daniela Mele,Massimo D?Orazio,Fabio Marzaioli,Isabella Passariello
Pág. 267 - 280
In this paper we illustrate the stratigraphy, geochronology, and geochemistry (major, minor, trace elements and Sr-isotopes) of a Holocene tephra layer found within coastal sedimentary deposits north of Caleta Olivia (Santa Cruz Province, Argentina). The...
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Grigory Dolgikh, Stanislav Dolgikh and Vladimir Ovcharenko
The paper presents the results of processing recordings of abnormal signals, which originated during the eruption of Hunga Tonga-Hunga Ha?apai volcano, and were registered by a laser nanobarograph and two laser strainmeters; there were three meters of se...
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Luis E. Lara,Rodrigo Moreno,Álvaro Amigo,Richard P. Hoblitt,Thomas C. Pierson
Pág. 249 - 261
Prior to May 2008, it was thought that the last eruption of Chaitén Volcano occurred more than 5,000 years ago, a rather long quiescent period for a volcano in such an active arc segment. However, increasingly more Holocene eruptions are being identified...
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NURLIA PARAMITA
This research analyses how the existence of the character occurred in one of disaster managementphases which is an emergency response. In addition, it aims to discuss and see the relationshipbetween authority institutions in the disaster management which...
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Luis E. Lara
Pág. 125 - 130
On May 2, 2008 a Plinian eruption began on Chaiten volcano. Dome growing stage would have started on May 10-12 and extensive lahars and floods affected Chaiten town (ca. 5,000 inhabitants) on May 12. A volume up to ca. 4 km3 (non DRE) of rhyolitic magma ...
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Jose Antonio Naranjo,Edmundo Polanco
Pág. 279 - 292
Although all historic eruptions of the Copahue volcano (37°45'S-71°10.2'W, 3,001 m a.s.l.) have been of low magnitude, the largest (VEI=2) and longest eruptive cycle occurred from July to October 2000. Phreatic phases characterized the main events as a f...
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Hugo Moreno,Gustavo Fuentealba
Pág. 167 - 171
INTRODUCTION. On May 17, at about 6:00 a.m., the Llaima volcano began a strombolian eruption, 10 years since the last short phreatomagmatic eruption (April 1984). The Llaima volcano is a complex composite-shield volcano, with a buried caldera and 40 para...
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Hugo Moreno,Gustavo Fuentealba
Pág. 167 - 171
INTRODUCTION. On May 17, at about 6:00 a.m., the Llaima volcano began a strombolian eruption, 10 years since the last short phreatomagmatic eruption (April 1984). The Llaima volcano is a complex composite-shield volcano, with a buried caldera and 40 para...
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Charles Stern,María Eugenia de Porras,Antonio Maldonado
Pág. 173 - 189
Based on their petrography and chemistry, 18 tephra analyzed from two lake and bog cores and one outcrop in the upper Río Cisnes valley are believed to have been derived from nine different eruptions of the Mentolat volcano, four of the Melimoyu volcano,...
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Charles R. Stern
Pág. 139 - 146
The Hudson volcano (46°8) is identified, on the basis of chemical data, as the source of a characteristically green-brown tephra within Holocene deposits on Tierra del Fuego. The 10-15 cm thicknesses of these ash layers, found over 900 km from their sour...
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Álvaro Amigo,Luis E. Lara,Victoria C. Smith
Pág. 227 - 248
Tephra fall deposits and one large ignimbrite close to Chaitén and Michinmahuida Volcanoes were analyzed for chemistry and radiocarbon dated to correlate the eruptive units and establish the timing of eruptions. These data suggest that both volcanoes wer...
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Minard Hall,Patricio Ramon,Patricia Mothes,Jean Luc LePennec,Alexander Garcia,Pablo Samaniego,Hugo Yepes
Pág. 349 - 358
Successful mitigation of a possible volcanic disaster depends upon the early detection of renewed volcanic activity. With considerable optimism, volcano observatories instrument dangerous volcanoes, with the hope of an early recognition of the reactivati...
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Jose A. Naranjo,Miguel J. Haller
Pág. 93 - 111
The Holocene activity of Planchón volcano is reduced and mainly explosive occurred through five explosive craters as the main source of the post-glacial deposits distributed to the eastern side of the volcano. Three successive phases were involved during...
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Jose A. Naranjo,Hugo Moreno,Carlos Emparan,Michael Murphy
Pág. 167 - 191
ABSTRACT. Recent explosive volcanism at Sollipulli volcano, southern Andes (39°S). The Solipulli volcano is a caldera that nests a ca. 2 km3 glacier. lts last eruption occurred over 700 years ago, through a parasitic cone. On the other hand, a paroxismal...
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Stefano Corradini, Lorenzo Guerrieri, Valerio Lombardo, Luca Merucci, Massimo Musacchio, Michele Prestifilippo, Simona Scollo, Malvina Silvestri, Gaetano Spata and Dario Stelitano
From 2011 to 2015, 49 lava fountains occurred at Etna volcano. In this work, the measurements carried out from the Spinning Enhanced Visible and InfraRed Imager (SEVIRI) instrument, on board the Meteosat Second Generation (MSG) geostationary satellite, a...
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Stefano Corradini, Lorenzo Guerrieri, Valerio Lombardo, Luca Merucci, Massimo Musacchio, Michele Prestifilippo, Simona Scollo, Malvina Silvestri, Gaetano Spata and Dario Stelitano
From 2011 to 2015, 49 lava fountains occurred at Etna volcano. In this work, the measurements carried out from the Spinning Enhanced Visible and InfraRed Imager (SEVIRI) instrument, on board the Meteosat Second Generation (MSG) geostationary satellite, a...
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Tetsuro Tsuru and Tetsuo No
By using profiling that focuses on seismic attenuation instead of reflectivity, we investigate geological structures in volcanic areas and fractured areas, where seismic reflections are difficult to observe. A previous study successfully visualized the h...
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