Browsing Geología by Title
Now showing items 142-157 of 157
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Temporal variations in fumarole gas chemistry at Poás volcano, Costa Rica
(2015-03)We report the chemical and isotopic composition of fumarole gas discharges collected at Poás Volcano, Costa Rica from 2001 to 2014, covering a period during which the volcano experienced a series of phreatic eruptions ... -
El terremoto de Sámara (Costa Rica) del 5 de setiembre del 2012 (Mw 7,6)
(2013)El 5 de setiembre del 2012 se produjo un terremoto (Mw 7,6) en la región de la península de Nicoya. A partir de dos métodos que usan modelos de velocidades en 1D y 3D presentamos tres soluciones para el inicio de la ruptura ... -
El Terremoto de Sámara del 5 de setiembre del 2012
(2012-11)Reporte técnico con los datos y análisis sobre el sismo del 5 de setiembre del 2012 a las 08:42 (hora local). Se hace un análisis de los acontesimientos posteriores relacinados. -
The 2022 Seismic Hazard Model for Costa Rica
(2023-02)Costa Rica is located at the boundary of four tectonic plates where the regularity of destruc tive earthquakes highlights the necessity of seismic hazard estimations. This study contains the most recent Probabilistic ... -
The last step of the volcanic unrest in Turrialba volcano: a new stage of magmatic eruptions
(2015)In 1864-1866, Turrialba volcano had a strombolian eruption with some phases of phreatic and phreatomagmatic activity, that covered the Central Valley of Costa Rica with a variable thickness of ash. During this eruption, ... -
The National Seismological Network of Costa Rica (RSN): An Overview and Recent Developments
(2018-03)The National Seismological Network of Costa Rica (RSN) is a joint effort between the University of Costa Rica (UCR) and the Costa Rican Institute of Electricity (ICE). In this article, we briefly describe its history, ... -
The record of the transition from an oceanic arc to a young continent in the Talamanca Cordillera
(2020-07)The Talamanca Cordillera in the Central America Arc (Costa Rica‐Panama) preserves the record of the geochemical evolution from an intraoceanic arc to a juvenile continental arc in an active subduction zone, making it a ... -
The seismically active Andean and Central American margins: Can satellite gravity map lithospheric structures?
(2011-11-17)The spatial resolution and quality of geopotential models (EGM2008, EIGEN-5C, ITG-GRACE03s, and GOCO-01s) have been assessed as applied to lithospheric structure of the Andean and Central American subduction zones. For the ... -
Time-Dependent Spatial Amplitude Patterns of Harmonic Tremor at Arenal Volcano, Costa Rica: Seismic-Wave Interferences?
(2012-12-01)Seismograms recorded at the receivers of a small‐aperture seismic array usually display very similar waveforms and amplitudes, as a consequence of their close proximity. During the analysis of the volcanic tremor wave field ... -
Tsunamis and Tsunami Hazards in Central America
(2000-02)A tsunami catalogue for Central America is compiled containing 49 tsunamis for the period 1539–1996, thirty seven of them are in the Pacific and twelve in the Caribbean. At the Caribbean side, 5 events are related with ... -
Tsunamis and tsunami prepardness in Costa Rica, Central America
(2005-12)Pacific and Atlantic sides of Costa Rica there are coastal segments characterised by a flat relief, which increases the vulnerability of the coastal communities. In addition to tsunamis originating in the Middle American ... -
Using Drones and Miniaturized Instrumentation to Study Degassing at Turrialba and Masaya Volcanoes, Central America
(2018)Gas measurements using unmanned aerial vehicles, or drones, were undertaken at Turrialbavolcano, Costa Rica, and Masaya volcano, Nicaragua, in 2016 and 2017. These two volcanoes are thelargest time-integrated sources of ... -
El Uso de las Redes Sociales para aumentar el alcance de la Red Sismológica Nacional
(2017-12)La Red Sismológica Nacional de Costa Rica (RSN: UCR-ICE) realiza, desde 1973, investigación en Sismología y Vulcanología. A partir del 2012 la RSN ha fortalecido sus esfuerzos de divulgación de material científico y educativo ... -
Volcano hazard and surveillance in Costa Rica
(2021-11-01)Costa Rica hosts ten volcanic complexes and is highly tectonically active due to its location at the interaction between the Cocos, Nazca, and Caribbean plates and the Panama microplate. Three of the five historically ...