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  • Article
  • Open Access
19 Citations
9,785 Views
20 Pages

26 March 2019

On 3 June 2018, a strong eruption of the Fuego volcano in Guatemala produced a dense cloud of 10-km-high volcanic ash and destructive pyroclastic flows that caused nearly 200 deaths and huge economic losses in the region. Subsequently, due to heavy r...

  • Article
  • Open Access
6 Citations
4,749 Views
25 Pages

Detailed Cartography of Cotopaxi’s 1877 Primary Lahar Deposits Obtained by Drone-Imagery and Field Surveys in the Proximal Northern Drainage

  • S. Daniel Andrade,
  • Emilia Saltos,
  • Valeria Nogales,
  • Sebastián Cruz,
  • Gareth Lee and
  • Jenni Barclay

28 January 2022

Cotopaxi is an active volcano in Ecuador, whose eruptions are characterized by producing destructive primary lahars which represent a major risk for the country. The hazard assessment related to such lahars relies largely on the knowledge of the late...

  • Feature Paper
  • Article
  • Open Access
25 Citations
5,673 Views
15 Pages

Modelling the 2012 Lahar in a Sector of Jamapa Gorge (Pico de Orizaba Volcano, Mexico) Using RAMMS and Tree-Ring Evidence

  • Osvaldo Franco-Ramos,
  • Juan Antonio Ballesteros-Cánovas,
  • José Ernesto Figueroa-García,
  • Lorenzo Vázquez-Selem,
  • Markus Stoffel and
  • Lizeth Caballero

23 January 2020

A good understanding of the frequency and magnitude of lahars is essential for the assessment of torrential hazards in volcanic terrains. In many instances, however, data on past events is scarce or incomplete, such that the evaluation of possible fu...

  • Article
  • Open Access
3 Citations
2,633 Views
18 Pages

UAV-Based Quantification of Dynamic Lahar Channel Morphology at Volcán de Fuego, Guatemala

  • Jerry C. Mock,
  • Jeffrey B. Johnson,
  • Armando Pineda,
  • Gustavo Bejar and
  • Amilcar Roca

25 July 2023

This study quantified erosional and depositional processes for secondary lahars in Las Lajas drainage at Volcán de Fuego, Guatemala, during the rainy season from May to October 2021. Abundant pyroclastic material from ongoing eruptive activity...

  • Article
  • Open Access
7 Citations
4,287 Views
21 Pages

LLUNPIY Simulations of the 1877 Northward Catastrophic Lahars of Cotopaxi Volcano (Ecuador) for a Contribution to Forecasting the Hazards

  • Valeria Lupiano,
  • Paolo Catelan,
  • Claudia R. Calidonna,
  • Francesco Chidichimo,
  • Gino M. Crisci,
  • Valeria Rago,
  • Salvatore Straface and
  • Salvatore Di Gregorio

LLUNPIY (lahar modeling by local rules based on an underlying pick of yoked processes, from the Quechua word “llunp’iy“, meaning flood) is a cellular automata (CA) model that simulates primary and secondary lahars, here applied to replicate those tha...

  • Article
  • Open Access
3,118 Views
17 Pages

A First Simulation of the Impact upon the Hidroagoyán Dam Due to Lahars Triggered by an 1877-Type Cotopaxi Eruption in Ecuador

  • Francesco Chidichimo,
  • Paolo Catelan,
  • Valeria Lupiano,
  • Salvatore Straface and
  • Salvatore Di Gregorio

10 October 2022

We forecast the impact that the lahars triggered on the summit of the Cotopaxi volcano in Ecuador would have upon the Hidroagoyán Dam should an 1877-type catastrophic eruption occur nowadays, with disastrous implications for the energy product...

  • Article
  • Open Access
13 Citations
4,374 Views
24 Pages

Twenty-Five Years of Geomorphological Evolution in the Gokurakudani Gully (Unzen Volcano): Topography, Subsurface Geophysics and Sediment Analysis

  • Christopher Gomez,
  • Yoshinori Shinohara,
  • Haruka Tsunetaka,
  • Norifumi Hotta,
  • Balazs Bradak and
  • Yuichi Sakai

6 November 2021

In the aftermath of pyroclastic density current-dominated eruptions, lahars are the main geomorphic agent, but at the decadal scale, different sets of processes take place in the volcanic sediment cascade. At Unzen volcano, in the Gokurakudani gully,...

  • Proceeding Paper
  • Open Access
2 Citations
1,412 Views
5 Pages

Application of a Risk Management System of Road Networks Exposed to Volcanic Hazards

  • Alondra Chamorro,
  • Tomás Echaveguren,
  • Marta Contreras,
  • Manuel Contreras-Jara,
  • Carlos Pattillo,
  • Eduardo Allen,
  • Natalia Nieto,
  • Joaquín Dagá and
  • Hernán de Solminihac

12 October 2023

Risk Management Systems are a valuable tool for estimating the potential losses of natural events, assessing risk reduction strategies, and increasing the resilience of critical infrastructure. The paper discusses the development of SIGeR-RV, a tool...

  • Proceeding Paper
  • Open Access
1,820 Views
8 Pages

A Machine Learning Model Relating Xrain and Rain Gauge

  • Miao Zhang,
  • Christopher Gomez,
  • Balazs Bradak,
  • Hotta Norifumi and
  • Shinohara Yoshinori

8 December 2022

In the last decade, rainfall radars have been deployed at volcanoes such as Mt. Merapi in Indonesia and can even cover a whole country such as in Japan, where the X-Rain (eXtended Radar Information network) product has been available for local resear...

  • Article
  • Open Access
5 Citations
3,240 Views
21 Pages

Two-Phase Two-Layer Depth-Integrated SPH-FD Model: Application to Lahars and Debris Flows

  • Saeid Moussavi Tayyebi,
  • Manuel Pastor,
  • Andrei Hernandez,
  • Lingang Gao,
  • Miguel Martin Stickle,
  • Ashenafi Lulseged Yifru and
  • Vikas Thakur

22 September 2022

The complex nature of debris flows suggests that the pore-water pressure evolution and dewatering of a flowing mass caused by the high permeability of soil or terrain could play an essential role in the dynamics behavior of fast landslides. Dewaterin...

  • Article
  • Open Access
27 Citations
5,094 Views
23 Pages

Sustainable Risk Management of Rural Road Networks Exposed to Natural Hazards: Application to Volcanic Lahars in Chile

  • Alondra Chamorro,
  • Tomás Echaveguren,
  • Eduardo Allen,
  • Marta Contreras,
  • Joaquín Dagá,
  • Hernan de Solminihac and
  • Luis E. Lara

20 August 2020

Natural hazards may temporarily or permanently interrupt the normal operation of rural road networks. The potential social, economic, environmental and physical impacts of natural events on rural road infrastructures empirically evidence the need to...

  • Communication
  • Open Access
5 Citations
6,263 Views
13 Pages

Home Ranges and Migration Routes of Four Threatened Raptors in Central Asia: Preliminary Results

  • Mohan Ram,
  • Aradhana Sahu,
  • Shyamal Tikadar,
  • Devesh Gadhavi,
  • Tahir Ali Rather,
  • Lahar Jhala and
  • Yashpal Zala

14 September 2022

Understanding the migratory route of raptors in their breeding and wintering grounds is crucial for ensuring their effective conservation. This study presents the preliminary findings through satellite telemetry to describe the summer and winter home...

  • Article
  • Open Access
3 Citations
1,128 Views
11 Pages

The Burden of Hospital Illness Associated with Disseminated Versus Isolated Pulmonary Coccidioidomycosis in the United States

  • Craig I. Coleman,
  • Jessica Bylyku,
  • Andria Latifi,
  • Belinda Lovelace,
  • Ryan Shan,
  • Lahar Miriyapalli and
  • Fariba Donovan

19 February 2025

There are scarce data comparing inpatient mortality, length of stay (LOS) and all-cause hospital costs in disseminated coccidioidomycosis (DCM) vs. isolated pulmonary coccidioidomycosis (IPCM). We assessed the burden of hospital illness associated wi...

  • Article
  • Open Access
1 Citations
1,632 Views
26 Pages

Reintroduction of Indian Grey Hornbills in Gir, India: Insights into Ranging, Habitat Use, Nesting and Behavioural Patterns

  • Mohan Ram,
  • Devesh Gadhavi,
  • Aradhana Sahu,
  • Nityanand Srivastava,
  • Tahir Ali Rather,
  • Tanisha Dagur,
  • Vidhi Modi,
  • Lahar Jhala,
  • Yashpal Zala and
  • Dushyantsinh Jhala

24 October 2025

Reintroduction efforts of wildlife species seek to re-establish self-sustaining populations of targeted species within their historical ranges. Our study focuses on the Indian Grey Hornbill, which faced local extinction in the Gir National Park and S...

  • Article
  • Open Access
6 Citations
5,964 Views
13 Pages

Conservation Management of the Endangered Asiatic Lions in Gujarat, India, Using GPS Satellite Telemetry

  • Mohan Ram,
  • Aradhana Sahu,
  • Nityanand Srivastava,
  • Lahar Jhala,
  • Yashpal Zala and
  • Meena Venkataraman

28 December 2022

Endangered Asiatic lions (Panthera leo persica) are found in the Asiatic Lion Landscape, Gujarat, which includes protected areas and a multi-use land matrix. Therefore, monitoring lions’ space-use and spatio-temporal location is vital for manag...

  • Article
  • Open Access
3 Citations
4,299 Views
22 Pages

Satellite Telemetry Insights into the Winter Habitat Use and Movement Ecology of Common and Demoiselle Cranes

  • Mohan Ram,
  • Devesh Gadhavi,
  • Aradhana Sahu,
  • Nityanand Srivastava,
  • Tahir Ali Rather,
  • Lahar Jhala,
  • Priyank Kapadi,
  • Karshan Vala,
  • Yashpal Zala and
  • Dhaval Devaliya
  • + 4 authors

28 November 2023

Using satellite telemetry, it is possible to track long-distance migrant birds with high accuracy and greater spatial coverage. However, prior to 2014, less than 1% of bird species in India had been monitored using this technology. Between January an...

  • Article
  • Open Access
4 Citations
5,213 Views
16 Pages

Home Range, Movement and Activity Patterns of Six vulture Species Using Satellite Telemetry in Saurashtra landscape, Gujarat, India

  • Mohan Ram,
  • Aradhana Sahu,
  • Shyamal Tikadar,
  • Devesh Gadhavi,
  • Tahir Ali Rather,
  • Lahar Jhala and
  • Yashpal Zala

18 October 2022

The information on the ranging behaviour and migration pattern of vultures is of critical conservation importance. Vultures’ range over vast areas in human-dominated landscapes where anthropogenic activities may influence their long-term surviv...

  • Communication
  • Open Access
2 Citations
4,175 Views
22 Pages

Aspects of Movement Ecology and Habitat Use of Migratory Raptors Using Satellite Telemetry from India to Central Asia

  • Mohan Ram,
  • Devesh Gadhavi,
  • Aradhana Sahu,
  • Nityanand Srivastava,
  • Tahir Ali Rather,
  • Vidhi Modi,
  • Akshita Patel,
  • Lahar Jhala,
  • Yashpal Zala and
  • Dushyantsinh Jhala

15 August 2024

Single individuals of the Greater Spotted Eagle (Clanga clanga), Indian Spotted Eagle (Clanga hastata), Tawny Eagle (Aquila rapax), Western Marsh Harrier (Circus aeruginosus), and two Pallid Harriers (Circus macrourus) were deployed with satellite tr...

  • Communication
  • Open Access
1 Citations
2,859 Views
10 Pages

Dietary Pattern of Asiatic Lions in the Coastal Ecosystem of Saurashtra, Gujarat, India

  • Mohan Ram,
  • Aradhana Sahu,
  • Nityanand Srivastava,
  • Kritagnya Vadar,
  • Rohit Chaudhary and
  • Lahar Jhala

The Asiatic lion (Panthera leo leo), a flagship species of conservation significance, has expanded its range beyond the Gir protected areas into multi-use landscapes, including the coastal regions of Saurashtra, Gujarat, India. This study examines th...

  • Article
  • Open Access
2 Citations
3,506 Views
28 Pages

Characterizing and Mapping Volcanic Flow Deposits on Mount St. Helens via Dual-Band SAR Imagery

  • Nikola Rogic,
  • Sylvain J. Charbonnier,
  • Franco Garin,
  • Guy W. Dayhoff II,
  • Eric Gagliano,
  • Mel Rodgers,
  • Charles B. Connor,
  • Sameer Varma and
  • David Shean

27 May 2023

Mapping volcanic flow deposits can be achieved by considering backscattering characteristics as a metric of surface roughness. In this study, we developed an approach to extract a measure of surface roughness from dual-band airborne Synthetic Apertur...

  • Article
  • Open Access
84 Views
30 Pages

The widespread abundance of silicified wood and fossil leaves in southwestern Georgia is associated with the upper Miocene-lower Pliocene volcanic deposits of the Goderdzi Formation. Neogene volcanic terrains frequently preserve exceptionally detaile...

  • Article
  • Open Access
9 Citations
5,908 Views
20 Pages

The Development and Demonstration of a Semi-Automated Regional Hazard Mapping Tool for Tailings Storage Facility Failures

  • Sally Innis,
  • Negar Ghahramani,
  • Nahyan Rana,
  • Scott McDougall,
  • Stephen G. Evans,
  • W. Andy Take and
  • Nadja C. Kunz

25 September 2022

Tailings flows resulting from tailings storage facility (TSF) failures can pose major risks to downstream populations, infrastructure and ecosystems, as evidenced by the 2019 Feijão disaster in Brazil. The development of predictive relationshi...

  • Article
  • Open Access
1,525 Views
19 Pages

1 November 2024

A practical analysis of the spectrograms of the seismic data generated by gravitational mass movements (GMMs), such as snow avalanches, landslides, lahars, and debris flows recorded on one sensor, is presented. The seismic signal produced by these mo...

  • Article
  • Open Access
13 Citations
10,916 Views
16 Pages

Mantle Evolution from Ocean to Arc: The Record in Spinel Peridotite Xenoliths in Mt. Pinatubo, Philippines

  • Betchaida D. Payot,
  • Shoji Arai,
  • Masako Yoshikawa,
  • Akihiro Tamura,
  • Mitsuru Okuno and
  • Danikko John V. Rivera

8 November 2018

A suite of peridotite xenoliths were collected from lahar flow deposits located close to the summit of Mt. Pinatubo. Spinel harzburgite is the most dominant lithology among dunites, pyroxenites and websterites. A rare spinel lherzolite xenolith (P12-...

  • Article
  • Open Access
29 Citations
8,695 Views
18 Pages

16 September 2019

Fuego volcano (Guatemala) is one of the most active and hazardous volcanoes in the world. Its persistent activity generates lava flows, pyroclastic density currents (PDCs), and lahars that threaten the surrounding areas and produce frequent morpholog...

  • Article
  • Open Access
4 Citations
3,175 Views
15 Pages

Evidence of Widespread Volcanic Activity near Hebrus Valles on Mars Revealed by SHARAD

  • Stefano Nerozzi,
  • Michael S. Christoffersen,
  • John W. Holt and
  • Christopher W. Hamilton

14 October 2023

Hebrus Valles is an outflow channel system in the plain-forming terrains of southeastern Utopia Planitia, Mars. These terrains may have formed through a combination of liquid water and volcanic processes, yet their nature, subsurface structure, and c...

  • Article
  • Open Access
10 Citations
9,621 Views
32 Pages

23 January 2022

Silicified wood occurs abundantly in Middle Miocene flows and sedimentary interbeds of the Columbia River Basalt Group (CRBG) in central Washington State, USA. These fossil localities are well-dated based on radiometric ages determined for the host l...

  • Article
  • Open Access
7 Citations
9,236 Views
32 Pages

La Palma 2021 Eruption (Canary Islands): Measurements and Modelling of Lava Flow Cooling Rates and Applications for Infrastructure Reconstruction and Risk Mitigation

  • Luis González-de-Vallejo,
  • Aaron Álvarez-Hernández,
  • Mercedes Ferrer,
  • John P. Lockwood,
  • Nemesio M. Pérez,
  • Pedro A. Hernández,
  • Ana Miranda-Hardisson,
  • José A. Rodríguez-Losada,
  • David Afonso-Falcón and
  • Luis E. Hernández-Gutiérrez
  • + 2 authors

4 October 2024

On 19 September 2021, a strombolian volcanic eruption began on the island of La Palma in the Canary Islands. This event resulted in the destruction of 73 km of roads, urban infrastructure, numerous houses, and agricultural crops, affecting approximat...

  • Article
  • Open Access
26 Citations
9,329 Views
16 Pages

Landslides Triggered by the 2016 Mw 7.8 Pedernales, Ecuador Earthquake: Correlations with ESI-07 Intensity, Lithology, Slope and PGA-h

  • Kervin Chunga,
  • Franz A. Livio,
  • Carlos Martillo,
  • Hernán Lara-Saavedra,
  • Maria Francesca Ferrario,
  • Ivan Zevallos and
  • Alessandro Maria Michetti

We provide a dataset of the landslides induced by the 2016 Pedernales megathrust earthquake, Ecuador (Mw 7.8, focal depth of 20 km) and compare their spatial distribution with mapped bedrock lithology, horizontal peak ground acceleration (PGA-h) and...

  • Editorial
  • Open Access
26 Citations
8,243 Views
17 Pages

Remote Sensing of Volcanic Processes and Risk

  • Francesca Cigna,
  • Deodato Tapete and
  • Zhong Lu

10 August 2020

Remote sensing data and methods are increasingly being embedded into assessments of volcanic processes and risk. This happens thanks to their capability to provide a spectrum of observation and measurement opportunities to accurately sense the dynami...