Browsing Observatorio Vulcanológico y Sismológico de Costa Rica by Title
Now showing items 70-89 of 185
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Gas emissions from the Hyper-Acid Crater Lake of Poás Volcano, Costa Rica
(The International Union of Geodesy and Geophysics (IUGG), 2015-06)Resumen de la presentación sobre las emisiones de gases del lago del cráter hiperácido del volcán Poás, Costa Rica en la 26th IUGG General Assembly -
Gas measurements from the Costa Rica–Nicaragua volcanic segment suggest possible along-arc variations in volcanic gas chemistry
(Elsevier, 2014)Obtaining accurate estimates of the CO2output from arc volcanism requires a precise understanding of the potential along-arc variations in volcanic gas chemistry, and ultimately of the magmatic gas signature of each ... -
Geochemistry and fluid circulation at the Tenorio volcanic complex (Costa Rica)
(Geoitalia, 2013-09)The present work reports the geochemical results gathered from thermal and cold water and discharges, mainly located in the eastern part of the volcanic area of Tenorio -
Geología de la parte nororiental de Bahía Ballena (Golfo de Nicoya) -Pochote- Cantón de Paquera- Provincia de Puntarenas Costa Rica
(Universidad Nacional, Costa Rica, 1983)El área de estudio representa el núcleo de un homoclinical de carácter regional, con eje rumbi W-NW. En dicho núcleo aflora el Complejo de Nicoya, en el cual se han diferenciado siete subunidades informales. Las subunidades ... -
Geomorfología reciente del fondo de cráter activo y otros cambios en el Volcán Turrialba
(Universidad Nacional, Costa Rica, 2015)Se realizó una documentación de cambios geomorfológicos en el cráter activo del volcán Turrialba basado en trabajo de campo del 14 y 15 de diciembre. Tales cambios están relacionados con la actividad eruptiva ocurrida desde ... -
Geophysical, geochemical and geodetical signals of reawakening at Turrialba volcano (Costa Rica) after almost 150 years of quiescence
(Elsevier, 2010-11)Turrialba is a basaltic–andesitic stratovolcano (3340 masl), in the Cordillera Volcánica Central in Costa Rica. After the last eruption (1864–1866), volcanic manifestations were limited to weak fumarolic discharge (continuous ... -
Global quieting of high-frequency seismic noise due to COVID-19 pandemic lockdown measures
(American Association for the Advancement of Science (AAAS), 2020)Human activity causes vibrations that propagate into the ground as high-frequency seismic waves. Measures to mitigate the coronavirus disease 2019 (COVID-19) pandemic caused widespread changes in human activity, leading ... -
Halogen activation in the plume of Masaya volcano: field observations and box model investigations
(Atmospheric Chemistry and Physics, 2020)Volcanic emissions are a source of halogens to the atmosphere. Rapid reactions convert the initially emitted hydrogen halides (HCl, HBr, HI) into reactive species e.g. BrO, Br2, BrCl, ClO, OClO and IO. The activation ... -
Historia eruptiva del volcán Turrialba y sus impactos
(Ambientico. Revista Mensual, 2015-06) -
Imaging the Subduction Factory Beneath Central America: The TUCAN Broadband Seismic Experiment
(American Geophysical Union, 2004)Summary of the paper "Imaging the Subduction Factory Beneath Central America: The TOUCAN Broadband Seismic Experiment" -
Imágenes de la medición de grietas y otros cambios geomorfológicos
(Universidad Nacional, Costa Rica, 2016)Imágenes de la medición de grietas y otros cambios geomorfológicos (de interés vulcanológico) en volcanes con la finalidad de compararlos con otras metodologías de vigilancia volcánica -
Imágenes de notas periodísticas sobre los volcánes periodo 2015-2016
(2016)Notas periodísticas sobre los volcánes Poás, Turrialba, Rincón de la Vieja, Arenal e Irazú, durante los años 2015-2016 -
Implementation of electrochemical, optical and denuder-based sensors and sampling techniques on UAV for volcanic gas measurements: examples from Masaya, Turrialba and Stromboli volcanoes
(European Geosciences Union, 2018-04-26)Volcanoes are a natural source of several reactive gases (e.g., sulfur and halogen containing species) and nonreactive gases (e.g., carbon dioxide) to the atmosphere. The relative abundance of carbon and sulfur in volcanic ... -
La incandescencia en el Volcán Turrialba (Nota técnica 01 de noviembre 2016)
(Universidad Nacional, Costa Rica, 2016)La incandescencia en los volcanes es tal vez uno de los elementos más visuales y llamativos a larga distancia. Observada en las noches o con un horizonte oscuro la luminosidad que desprenden los materiales y gases calientes ... -
Insights Into the Mechanisms of Phreatic Eruptions From Continuous High Frequency Volcanic Gas Monitoring: Rincón de la Vieja Volcano, Costa Rica
(Frontiers Media, 2019-01-11)Understanding the trigger mechanisms of phreatic eruptions is key to mitigating the effects of these hazardous but poorly forecastable volcanic events. It has recently been established that high-rate volcanic gas ... -
Insights on Hydrothermal‐Magmatic Interactions and Eruptive Processes at Poás Volcano (Costa Rica) From High‐Frequency Gas Monitoring and Drone Measurements
(AGU Publications, 2019-02-06)Identification of unambiguous signals of volcanic unrest is crucial in hazard assessment. Processes leading to phreatic and phreatomagmatic eruptions remain poorly understood, inhibiting effective eruption forecasting. Our ... -
Integrated velocity field from ground and satellite geodetic techniques: application to Arenal volcano
(Universidad de Oxford, Reino Unido, 2015)Measurements of ground deformation can be used to identify and interpret geophysical processes occurring at volcanoes. Most studies rely on a single geodetic technique, or fit a geophysical model to the results of multiple ... -
Intensidades macrosísmicas del sismo de Capellades del 30 de noviembre de 2016 (Mw = 5,4) y el contexto sísmico de la región central de Costa Rica
(Universidad Industrial de Santander, 2020-01)El 30 de noviembre del 2016, a las 18:25 hora local, se generó un sismo que se localizó a 4,4 km al noroeste de Capellades de Alvarado, Cartago, Costa Rica; con una magnitud de Mw = 5,4. De acuerdo con la Escala de ... -
International geosciences field research with undergraduate students: Three models for experiential learning projects investigating active tectonics of the Nicoya Peninsula, Costa Rica
(Geological Society of America, 2009)International field experiences offer exceptional opportunities for effective student learning in the geosciences. Over the 10 yr period between 1998 and 2008, more than 40 undergraduate students from 14 institutions ...