Browsing Observatorio Vulcanológico y Sismológico de Costa Rica by Title
Now showing items 53-72 of 185
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Drones Swoop in to Measure Gas Belched from Volcanoes
(EOS. Science News by AGU, 2018-07-25)Los gases volcánicos son importantes herramientas de pronóstico de erupciones que se utilizan a menudo en el monitoreo de volcanes. Sin embargo, la recolección de muestras de gas requiere que los científicos ingresen a ... -
Duration-amplitude distribution of volcanic tremor
(American Geophysical Union, 2003)The duration-amplitude distribution of volcanic tremor was examined in eight volcanoes and one geothermal area. An exponential model, implying a scale-bound source process, is found to be a better fit to the data than a ... -
Earthquake and tsunami forecasts: Relation of slow slip events to subsequent earthquake rupture
(National Academy of Sciences, 2014-11-17)The 5 September 2012 Mw 7.6 earthquake on the Costa Rica subduction plate boundary followed a 62-y interseismic period. Highprecision GPS recorded numerous slow slip events (SSEs) in the decade leading up to the earthquake, ... -
Emplazamiento de ceniza al sur del volcán Turrialba (Basado en trabajo de campo del 4 de mayo de 2016)
(Universidad Nacional, Costa Rica, 2016)Se realizó una documentación de los depósitos de ceniza al sur y sureste del cráter activo del volcán Turrialba con trabajo de campo del 4 de mayo de los corrientes. Tales cambios están relacionados con la actividad eruptiva ... -
Eruptive activity at Turrialba volcano (Costa Rica): Inferences from 3He/4He in fumarole gases and chemistry of the products ejected during 2014 and 2015
(AGU Publications, 2016)A new period of eruptive activity started at Turrialba volcano, Costa Rica, in 2010 after almost 150 years of quiescence. This activity has been characterized by sporadic explosions whose frequency clearly increased since ... -
Estimating tsunami potential of earthquakes in the Sumatra-Andaman region based on broadband seismograms in India
(Universidad Nacional, Costa Rica., 2012)In this paper, we report that the ratio of broadband energy (0.01–2 Hz) to highfrequency energy (0.3–2 Hz), Er, estimated from regional seismograms of India, might be a useful parameter in estimating tsunami potential of ... -
Extremely high diversity of sulfate minerals in caves of the Irazú Volcano (Costa Rica) related to crater lake and fumarolic activity
(International Journal of Speleology, 2018-05)The caves of the Irazú volcano (Costa Rica), became accessible after the partial collapse of the NW sector of the Irazú volcano in 1994, offering the opportunity to investigate active minerogenetic processes in volcanic ... -
Far-field triggering of foreshocks near the nucleation zone of the 5 September 2012 (MW 7.6) Nicoya Peninsula, Costa Rica earthquak
(Elsevier, 2015-12-01)On 5 September 2012, a moment magnitude (MW) 7.6 earthquake occurred directly beneath the Nicoya Peninsula, an area with dense seismic and geodetic network coverage. The mainshock ruptured a portion of a previously identified ... -
Fine-Tuning the Seismic Potential of the Nicoya Gap in NW Costa Rica
(American Geophysical Union, 2007-05-22)The Nicoya seismic gap is a subduction segment along the Middle American Trench where the Cocos plate subducts under the Caribbean plate. This seismic gap, located under the Nicoya Peninsula in northwestern Costa Rica, has ... -
Fluid geochemistry and seismic activity in the period 1998-2002 at Turrialba Volcano: Costa Rica
(Universidad de Florencia, Italia, 2004)Turrialba Volcano, located in Central-Southern Costa Rica, has been characterized, since the last period of eruptive activity in 1884-1886, by a weak and discontinuous fumarolic activity in the western area of its summit. ... -
Fluorosis dental en la población infantil en las cercanías del Volcán Irazú, Costa Rica
(Universidad Nacional, Costa Rica, 2014)Póster presentado en el XX Congreso Latinoamericano de Estudiantes de Ingeniería Química -
Formación de lago en el fondo de cráter activo y otros cambios en el Volcán Turrialba (Basado en trabajo de campo del 28 de mayo de 2015)
(Universidad Nacional, Costa Rica, 2016)Se realizó una visita a diversos puntos de la caldera del volcán Turrialba, con objetivos múltiples. Las tareas se dedicaron a la documentación de cambios físicos en la cima y alrededores debido a las erupciones de mayo. ... -
Fotografías de visitas al Volcán Arenal (40 fotografías)
(Universidad Nacional, Costa Rica, 2016)Fotografías del Volcán Arenal, en gira de campo -
Fotografías de visitas al Volcán Irazú (50 fotografías)
(Universidad Nacional, Costa Rica, 2016)Fotografías del volcán Irazú, en gira de campo -
Fotografías de visitas al Volcán Poás (50 fotografías)
(Universidad Nacional, Costa Rica, 2016)Fotografías del volcán Póas, en gira de campo -
Fotografías de visitas al Volcán Rincón de la Vieja (20 fotografías)
(Universidad Nacional, Costa Rica, 2016)Fotografías del Volcán Rincón de la Vieja, en gira de campo -
Fotografías de visitas al Volcán Turrialba (50 fotografías)
(Universidad Nacional, Costa Rica, 2016)Fotografías del volcán Turrialba, en gira de campo -
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