SO2 Emissions from 32 Volcanoes During the Period 2005 - 2016
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VOCALS Site Survey Report
VOCALS Site Survey 30 September – 12 October 2007 Arica, Iquique, Santiago, Chile Brigitte Baeuerle, Henry Boynton, Bob Hannigan, José Meitín, Vidal Salazar, Rob Wood, Pete Daum, Juan Aravena GENERAL INFORMATION: Area 756,950 sq. km Population: 16,284,741 (2007 estimate) Government Type Republic President Michelle Bachelet Jeria Capital City Santiago GDP per capita $12,600 Unemployment Rate 7.8% Life expectancy 77 years Infant Mortality Rate 8.36 death / 1000 life births Currency unit Peso Highest point 22,572 ft (Nevado Ojos del Salado) Main cities Concepción, Viña del Mar, Valparaiso National Holiday Independence Day, 18 September OVERVIEW Chile is unique for its very long (2,650 miles) and comparatively narrow (maximum 250 miles) shape and for its great variety of natural features. It extends from latitudes 18 to 56 degrees south and contains one of the driest regions in the world and one of the wettest areas in South America. It is bound on the north by Peru, on the northeast by Bolivia, on its long eastern border (3,200 miles) by Argentina and on the west by the Pacific Ocean. In its economy and public services, Chile is one of the most developed countries in the Andean region. Climate: Extending over 38 degrees of latitude, from the tropics to the vicinity of Antarctica, and from sea level to altitudes of over 20,000 feet, Chile has a wide variety of climatic conditions. Extreme aridity prevails over the northern part of the country; the average annual rainfall in this region is 0.04 inches. Temperatures are moderate along the coast throughout the year and more extreme inland, especially in the central basin. -
Morphological and Geochemical Features of Crater Lakes in Costa Rica: an Overview
See discussions, stats, and author profiles for this publication at: https://www.researchgate.net/publication/307656088 Morphological and geochemical features of crater lakes in Costa Rica: an overview Article in Journal of limnology · August 2009 DOI: 10.4081/jlimnol.2009.193 CITATIONS READS 13 45 7 authors, including: Antonio Delgado Huertas Maria Martinez Cruz CSIC-UGR Instituto Andaluz de Ciencias de la Tierra (IACT) National University of Costa Rica 354 PUBLICATIONS 6,671 CITATIONS 102 PUBLICATIONS 496 CITATIONS SEE PROFILE SEE PROFILE Emelia Duarte Orlando Vaselli Stephen F. Austin State University University of Florence 20 PUBLICATIONS 230 CITATIONS 572 PUBLICATIONS 6,516 CITATIONS SEE PROFILE SEE PROFILE Some of the authors of this publication are also working on these related projects: Geochemical study of the fluids of the Copahue and Planchón-Peteroa volcanic-hydrothermal systems (Southern Volcanic Zone of the Andes) View project Reconocimiento del sistema kárstico de Venado de San Carlos y sus implicaciones espeleológicas, hidrogeológicas, geológicas y geo-turísticas View project All content following this page was uploaded by Franco Tassi on 29 June 2017. The user has requested enhancement of the downloaded file. J. Limnol., 68(2): 193-205, 2009 DOI: 10.3274/JL09-68-2-04 Morphological and geochemical features of crater lakes in Costa Rica: an overview Franco TASSI*, Orlando VASELLI, Erik FERNANDEZ1), Eliecer DUARTE1), Maria MARTINEZ1), Antonio DELGADO HUERTAS2) and Francesco BERGAMASCHI Department of Earth Sciences, Via G. La Pira 4, 50121, University of Florence (Italy) 1)Volcanological and Seismological Observatory, Nacional University, Heredia (Costa Rica) 2)Estacion Experimental de Zaidin (CSIC), Prof. Albareda 1, 18008, Granada (Spain) *e-mail corresponding author: [email protected] ABSTRACT This paper describes the compositional and morphological features of the crater lakes found in the volcanoes of Rincón de La Vieja, Poás, Irazú, Congo and Tenorio volcanoes (Costa Rica). -
Wfp Lac Situp 10 200923 Exter
WFP LATIN AMERICA & CARIBBEAN REGION COVID-19 Logistics Situation Update #10 23 September 2020 Date 07 July 2020 Month YYYY 1. Highlights Constraints Hurricane Season (Source: National Hurricane Center) Atlantic: • Hurricane Sally (CAT 2): Sally made landfall at Mobile, Alabama on 16 September early morning as a category 2 hurricane. As a slow-moving storm, Sally brought life-threatening storm surge and flash flooding to Alabama, Mississippi and Florida. Hundreds of people were rescued from flooding areas and more than half million population were left without electricity. Sally weakened to a tropical depression on 16 September. • Major Hurricane Teddy (CAT 4): Teddy is expected to transition to a powerful post-tropical cyclone as it moves near or over portions of Atlantic Canada on 22 September through 24 September where direct impacts from wind, rain and storm surge are expected. Very large swells produced by Teddy are expected to affect portions of Bermuda, the Leeward Islands, the Greater Antilles, the Bahamas, the east coast of the United States, and the Atlantic Canada during the next few days. These swells are expected to cause life-threatening surf and rip current conditions. • Tropical Storm Vicky: Last advisory on Vicky was issued on 17 September. The remnant low should remain on a west south-westward heading while it is steered by the low-level north-easterly trade wind flow over 18-19 September. • Tropical Storm Beta: Beta weakened to a tropical depression on 22 September. Significant flash and urban flooding are occurring and will continue to occur for coast of Texas today. The slow motion of Beta will continue to produce a long duration rainfall event from the middle Texas coast to southern Louisiana. -
And Gas-Based Geochemical Prospecting Of
Water- and gas-based geochemical prospecting of geothermal reservoirs in the Tarapacà and Antofagasta regions of northern Chile Tassi, F.1, Aguilera, F.2, Vaselli, O.1,3, Medina, E.2, Tedesco, D.4,5, Delgado Huertas, A.6, Poreda, R.7 1) Department of Earth Sciences, University of Florence, Via G. La Pira 4, 50121, Florence, Italy 2) Departamento de Ciencias Geológicas, Universidad Católica del Norte, Av. Angamos 0610, 1280, Antofagasta, Chile 3) CNR-IGG Institute of Geosciences and Earth Resources, Via G. La Pira 4, 50121, Florence, Italy 4)Department of Environmental Sciences, 2nd University of Naples, Via Vivaldi 43, 81100 Caserta, Italy 5) CNR-IGAG National Research Council, Institute of Environmental Geology and Geo-Engineering, Pzz.e A. Moro, 00100 Roma, Italy. 6) CSIS Estacion Experimental de Zaidin, Prof. Albareda 1, 18008, Granada, Spain. 7) Department of Earth and Environmental Sciences, 227 Hutchinson Hall, Rochester, NY 14627, U.S.A.. Studied area The Andean Central Volcanic Zone, which runs parallel the Central Andean Cordillera crossing from North to This study is mainly focused on the geochemical characteristics of water and gas South the Tarapacà and Antofagasta regions of northern Chile, consists of several volcanoes that have shown phases of thermal fluids discharging in several geothermal areas of northern Chile historical and present activity (e.g. Tacora, Guallatiri, Isluga, Ollague, Putana, Lascar, Lastarria). Such an intense (Fig. 1); volcanism is produced by the subduction process thrusting the oceanic Nazca Plate beneath the South America Plate. The anomalous geothermal gradient related to the geodynamic assessment of this extended area gives El Tatio, Apacheta, Surire, Puchuldiza-Tuya also rise to intense geothermal activity not necessarily associated with the volcanic structures. -
Muon Tomography Sites for Colombian Volcanoes
Muon Tomography sites for Colombian volcanoes A. Vesga-Ramírez Centro Internacional para Estudios de la Tierra, Comisión Nacional de Energía Atómica Buenos Aires-Argentina. D. Sierra-Porta1 Escuela de Física, Universidad Industrial de Santander, Bucaramanga-Colombia and Centro de Modelado Científico, Universidad del Zulia, Maracaibo-Venezuela, J. Peña-Rodríguez, J.D. Sanabria-Gómez, M. Valencia-Otero Escuela de Física, Universidad Industrial de Santander, Bucaramanga-Colombia. C. Sarmiento-Cano Instituto de Tecnologías en Detección y Astropartículas, 1650, Buenos Aires-Argentina. , M. Suárez-Durán Departamento de Física y Geología, Universidad de Pamplona, Pamplona-Colombia H. Asorey Laboratorio Detección de Partículas y Radiación, Instituto Balseiro Centro Atómico Bariloche, Comisión Nacional de Energía Atómica, Bariloche-Argentina; Universidad Nacional de Río Negro, 8400, Bariloche-Argentina and Instituto de Tecnologías en Detección y Astropartículas, 1650, Buenos Aires-Argentina. L. A. Núñez Escuela de Física, Universidad Industrial de Santander, Bucaramanga-Colombia and Departamento de Física, Universidad de Los Andes, Mérida-Venezuela. December 30, 2019 arXiv:1705.09884v2 [physics.geo-ph] 27 Dec 2019 1Corresponding author Abstract By using a very detailed simulation scheme, we have calculated the cosmic ray background flux at 13 active Colombian volcanoes and developed a methodology to identify the most convenient places for a muon telescope to study their inner structure. Our simulation scheme considers three critical factors with different spatial and time scales: the geo- magnetic effects, the development of extensive air showers in the atmosphere, and the detector response at ground level. The muon energy dissipation along the path crossing the geological structure is mod- eled considering the losses due to ionization, and also contributions from radiative Bremßtrahlung, nuclear interactions, and pair production. -
Magmatic Evolution of the Nevado Del Ruiz Volcano, Central Cordillera, Colombia Minera1 Chemistry and Geochemistry
Magmatic evolution of the Nevado del Ruiz volcano, Central Cordillera, Colombia Minera1 chemistry and geochemistry N. VATIN-PÉRIGNON “‘, P. GOEMANS “‘, R.A. OLIVER ‘*’ L. BRIQUEU 13),J.C. THOURET 14J,R. SALINAS E. 151,A. MURCIA L. ” Abstract : The Nevado del RU~‘, located 120 km west of Bogota. is one of the currently active andesitic volcanoes that lies north of the Central Cordillera of Colombia at the intersection of two dominant fault systems originating in the Palaeozoïc basement. The pre-volcanic basement is formed by Palaeozoïc gneisses intruded by pre-Cretaceous and Tertiarygranitic batholiths. They are covered by lavas and volcaniclastic rocks from an eroded volcanic chain dissected during the late Pliocene. The geologic history of the Nevado del Ruiz records two periods of building of the compound volcano. The stratigraphie relations and the K-Ar dating indicate that effusive and explosive volcanism began approximately 1 Ma ago with eruption of differentiated andesitic lava andpyroclastic flows and andesitic domes along a regional structural trend. Cataclysmic eruptions opened the second phase of activity. The Upper sequences consist of block-lavas and lava domes ranging from two pyroxene-andesites to rhyodacites. Holocene to recent volcanic eruptions, controled by the intense tectonic activity at the intersection of the Palestina fawlt with the regional fault system, are similar in eruptive style and magma composition to eruptions of the earlier stages of building of the volcano. The youngest volcanic activity is marked by lateral phreatomagmatic eruptions, voluminous debris avalanches. ash flow tuffs and pumice falls related to catastrophic collapse during the historic eruptions including the disastrous eruption of 1985. -
DIPECHO VI Central America FINAL
European Commission Instructions and Guidelines for DG ECHO potential partners wishing to submit proposals for a SIXTH DIPECHO ACTION PLAN IN CENTRAL AMERICA COSTA RICA, EL SALVADOR, GUATEMALA, HONDURAS, NICARAGUA, PANAMA Budget article 23 02 02 Deadline for submitting proposals: 30 April 2008 1 Table of contents BACKGROUND................................................................................................................................ 3 1. OBJECTIVES OF THE PROGRAMME AND PRIORITY ISSUES FOR THE 6TH ACTION PLAN FOR CENTRAL AMERICA .............................................................................................................. 6 1.1 Principal objective .......................................................................................................................... 5 1.2 Specific objective ............................................................................................................................ 5 1.3 Strategic programming imperatives (sine qua non)......................................................................... 6 1.4 Type of activities ............................................................................................................................. 8 1.5 Priorities in terms of geographical areas, hazards and sectors ...................................................... 11 1.6 Visibility and Communication requirements................................................................................. 16 2. FINANCIAL ALLOCATION PROVIDED ................................................................................... -
Review and Reassessment of Hazards Owing to Volcano–Glacier Interactions in Colombia
128 Annals of Glaciology 45 2007 Review and reassessment of hazards owing to volcano–glacier interactions in Colombia Christian HUGGEL,1 Jorge Luis CEBALLOS,2 Bernardo PULGARI´N,3 Jair RAMI´REZ,3 Jean-Claude THOURET4 1Glaciology and Geomorphodynamics Group, Department of Geography, University of Zurich, 8057 Zurich, Switzerland E-mail: [email protected] 2Instituto de Meteorologı´a, Hidrologı´a y Estudios Ambientales, Bogota´, Colombia 3Instituto Colombiano de Geologı´a y Minerı´a, Bogota´, Colombia 4Laboratoire Magmas et Volcans UMR 6524 CNRS, Universite´ Blaise-Pascal, Clermont-Ferrand, France ABSTRACT. The Cordillera Central in Colombia hosts four important glacier-clad volcanoes, namely Nevado del Ruiz, Nevado de Santa Isabel, Nevado del Tolima and Nevado del Huila. Public and scientific attention has been focused on volcano–glacier hazards in Colombia and worldwide by the 1985 Nevado del Ruiz/Armero catastrophe, the world’s largest volcano–glacier disaster. Important volcanological and glaciological studies were undertaken after 1985. However, recent decades have brought strong changes in ice mass extent, volume and structure as a result of atmospheric warming. Population has grown and with it the sizes of numerous communities located around the volcanoes. This study reviews and reassesses the current conditions of and changes in the glaciers, the interaction processes between ice and volcanic activity and the resulting hazards. Results show a considerable hazard potential from Nevados del Ruiz, Tolima and Huila. Explosive activity within environments of snow and ice as well as non-eruption-related mass movements induced by unstable slopes, or steep and fractured glaciers, can produce avalanches that are likely to be transformed into highly mobile debris flows. -
Eruptive Activity of Planchón-Peteroa Volcano for Period 2010-2011, Southern Andean Volcanic Zone, Chile
Andean Geology 43 (1): 20-46. January, 2016 Andean Geology doi: 10.5027/andgeoV43n1-a02 www.andeangeology.cl Eruptive activity of Planchón-Peteroa volcano for period 2010-2011, Southern Andean Volcanic Zone, Chile *Felipe Aguilera1, 2, Óscar Benavente3, Francisco Gutiérrez3, Jorge Romero4, Ornella Saltori5, Rodrigo González6, Mariano Agusto7, Alberto Caselli8, Marcela Pizarro5 1 Servicio Nacional de Geología y Minería, Avda. Santa María 0104, Santiago, Chile. 2 Present address: Departamento de Ciencias Geológicas, Universidad Católica del Norte, Avda. Angamos 0610, Antofagasta, Chile. [email protected] 3 Departamento de Geología, Universidad de Chile, Plaza Ercilla 803, Santiago, Chile. [email protected]; [email protected] 4 Centro de Investigación y Difusión de Volcanes de Chile, Proyecto Archivo Nacional de Volcanes, Santiago, Chile. [email protected] 5 Programa de Doctorado en Ciencias mención Geología, Universidad de Chile, Plaza Ercilla 803, Santiago, Chile. [email protected]; [email protected] 6 Departamento de Ciencias Geológicas, Universidad Católica del Norte, Avda. Angamos 0610, Antofagasta, Chile. [email protected] 7 Departamento de Ciencias Geológicas, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón 2, 1428EHA, Buenos Aires, Argentina. [email protected] 8 Laboratorio de Estudio y Seguimiento de Volcanes Activos (LESVA), Universidad Nacional de Río Negro, Roca 1242, (8332) Roca, Argentina. [email protected] * Corresponding author: [email protected] ABSTRACT. Planchón-Peteroa volcano started a renewed eruptive period between January 2010 and July 2011. This eruptive period was characterized by the occurrence of 4 explosive eruptive phases, dominated by low-intensity phreatic activity, which produced almost permanent gas/steam columns (200-800 m height over the active crater). -
Evaluación Del Riesgo Volcánico En El Sur Del Perú
EVALUACIÓN DEL RIESGO VOLCÁNICO EN EL SUR DEL PERÚ, SITUACIÓN DE LA VIGILANCIA ACTUAL Y REQUERIMIENTOS DE MONITOREO EN EL FUTURO. Informe Técnico: Observatorio Vulcanológico del Sur (OVS)- INSTITUTO GEOFÍSICO DEL PERÚ Observatorio Vulcanológico del Ingemmet (OVI) – INGEMMET Observatorio Geofísico de la Univ. Nacional San Agustín (IG-UNSA) AUTORES: Orlando Macedo, Edu Taipe, José Del Carpio, Javier Ticona, Domingo Ramos, Nino Puma, Víctor Aguilar, Roger Machacca, José Torres, Kevin Cueva, John Cruz, Ivonne Lazarte, Riky Centeno, Rafael Miranda, Yovana Álvarez, Pablo Masias, Javier Vilca, Fredy Apaza, Rolando Chijcheapaza, Javier Calderón, Jesús Cáceres, Jesica Vela. Fecha : Mayo de 2016 Arequipa – Perú Contenido Introducción ...................................................................................................................................... 1 Objetivos ............................................................................................................................................ 3 CAPITULO I ........................................................................................................................................ 4 1. Volcanes Activos en el Sur del Perú ........................................................................................ 4 1.1 Volcán Sabancaya ............................................................................................................. 5 1.2 Misti .................................................................................................................................. -
Boletín Mensual Sismos Y Volcanes De Nicaragua Enero, 2021
Boletín Sismos y Volcanes de Nicaragua. Enero, 2021. Dirección General de Geología y Geofísica Instituto Nicaragüense de Estudios Territoriales Dirección General de Geología y Geofísica Boletín mensual Sismos y Volcanes de Nicaragua Enero, 2021 Mapa epicentral de sismos localizados en Nicaragua. Enero, 2021 pág. 1 Boletín Sismos y Volcanes de Nicaragua. Enero, 2021. Dirección General de Geología y Geofísica Instituto Nicaragüense de Estudios Territoriales (INETER) Dirección General de Geología y Geofísica Boletín Sismológico, Vulcanológico y Geológico Enero, 2021 Las observaciones rutinarias de sismicidad, vulcanismo y otros fenómenos geológicos en NIC, resultan del sistema de monitoreo y vigilancia desarrollado y mantenido por INETER. El contenido de este boletín se basa en el trabajo de las siguientes personas: Monitoreo Sismológico – Turno Sismológico Antonio Acosta, Greyving Argüello, Amilcar Cabrera, Milton Espinoza, Petronila Flores, Miguel Flores Ticay, Fernando García, Juan Carlos Guzmán, Ulbert Grillo, Martha Herrera, Domingo Ñamendi, Ana Rodríguez Lazo, Wesly Rodríguez, Jacqueline Sánchez, Emilio Talavera, Virginia Tenorio. Procesamiento Final de los Registros Sísmicos Jacqueline Sánchez, Virginia Tenorio Monitoreo Volcánico Eveling Espinoza, Armando Saballos, Martha Ibarra, David Chavarría, Teresita Olivares, Dodanis Matus, Elvis Mendoza, Rinath José Cruz Talavera Mantenimiento de la Red Sísmica y Sistemas Electrónicos Antonio Acosta, Martha Herrera, Fernando García, Domingo Ñamendis, Allan Morales, Ulbert Grillo Departamento Tecnología Información y Comunicación Miguel Flores, Norwing Acosta, Ernesto Mendoza Geología Carmen Gutiérrez, Gloria Pérez, Francisco Mendoza, Ada Mercado Rodríguez, Bianca Vanegas, Rosario Avilés Preparación Final del Catálogo Virginia Tenorio Febrero, 2021 Algunos artículos particulares llevan los nombres de los autores respectivos, quienes Son responsables por la veracidad de los datos presentados y las conclusiones alcanzadas. -
Revision 2 Understanding Magmatic Processes at Telica Volcano
Revision 2 Understanding magmatic processes at Telica volcano, Nicaragua: Crystal size distribution and textural analysis Molly Witter1,2*, Tanya Furman1, Peter LaFemina1, Maureen Feineman1 1 Department of Geosciences, Pennsylvania State University, University Park, PA 16802, USA 2 Now at: Department of Geological Sciences, Stanford University, 397 Panama Mall, Stanford CA, 94305 USA * Corresponding author: [email protected] 1 Abstract 1 Telica volcano in Nicaragua currently exhibits persistent activity with continuous seismicity and 2 degassing, yet it has not produced lava flows since 1529. To provide insight into magma 3 chamber processes including replenishment and crystallization, crystal size distribution (CSD) 4 profiles of plagioclase feldspar phenocrysts were determined for Quaternary Telica basalts and 5 basaltic andesites. Textural analysis of fourteen highly crystalline lavas (>30 vol.% phenocrysts) 6 indicates that the samples are dominated by sieve-textured plagioclase feldspar phenocrysts 7 whose origin requires thermochemical disequilibrium within the magmatic system. The CSD 8 curves display an inverse relationship between phenocryst length and population density. 9 Concave-up patterns observed for the Telica lava samples can be represented by linear segments 10 that define two crystal populations: a steeply-sloping segment for small crystals (<1.5 mm) and a 11 gently-sloping segment for crystals >1.5 mm in length. The two crystal populations may be 12 explained by magma replenishment and a mixing model in which a mafic magma is introduced 13 to a stable chamber that is petrologically and geochemically evolving. Residence times 14 calculated using the defined linear segments of the CSD curves suggest these magmatic 15 processes occur over time scales on the order of decades to centuries.