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Evolution and dynamics of the open‑vent eruption at Arenal volcano (Costa Rica, 1968–2010): what we learned and perspectives
(2022)
On 29 July 1968, there was a violent reactivation of Arenal volcano. The resulting westward-directed lateral blast eruption left two villages destroyed and 78 people dead. The activity continued as a long-lasting, open-vent ...
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 ...
A Constrained 3D Density Model of the Upper Crust from Gravity Data Interpretation for Central Costa Rica
(2010-01-05)
The map of complete Bouguer anomaly of Costa Rica shows an elongated NW-SE trending gravity low in the central region. This gravity low coincides with the geographical region known as the Cordillera Volcánica Central. It ...
Origen de los sismos sentidos en Costa Rica durante el año 2023
Origin of earthquakes felt in Costa Rica during 2023
(2024)
The 153 earthquakes felt in Costa Rica during 2023 can be grouped into four categories according to their origin: faulting in the Caribbean and Panama upper plates, interplate seismogenic zones of the Cocos and Caribbean ...
El terremoto de Sámara (Costa Rica) del 5 de setiembre del 2012 (Mw 7,6)
The Samara (Costa Rica) earthquake of 5 september 2012 (Mw7.6)
(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 ...
Explosion mechanisms at Arenal volcano, Costa Rica: An interpretation from integration of seismic and Doppler radar data
(2012-01-21)
We execute an integrated analysis of broadband seismic and Doppler radar data to gain insights into the subsurface mechanisms that drive repetitive, mildly explosive activity of Arenal volcano (Costa Rica). We find large ...
Completitud del catálogo de la red sismológica nacional y distribución espacio-temporal de la sismicidad de Costa Rica (1975-2014)
Completeness of the Costa Rica national seismological network catalog during 1975-2014.
(2017)
En este artículo se evalúa la estabilidad de la tasa media de ocurrencia de sismos y la distribución temporal de la sismicidad en Costa Rica a partir del método de Stepp, con el fin de determinar la magnitud de completitud ...
Estructura del cono piroclástico Pasquí a partir de interpretación indirecta de datos de gravedad
Structure of the pasquí pyroclastic cone from indirect interpretation of gravity data
(2019-06-01)
El volcán Irazú presenta, en sus cuadrantes sur y oeste, numerosas estructuras relacionadas con antiguos focos de emisión de lavas y piroclastos fuera de su foco cuspidal. Una serie de estas estructuras se encuentra asociada ...