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Array analysis of the seismic wavefield of long-period events and volcanic tremor at Arenal volcano, Costa Rica
(2014-06-06)
We use wavefield decomposition methods (time domain cross correlation and frequency domain multiple-signal classification) to analyze seismic data recorded by a dense, small-aperture array located 2 km West of Arenal ...
Seismicity during the recent activity (2009–2020) of Turrialba volcano, Costa Rica
(2022)
Turrialba is a stratovolcano located at the easternmost part of the Costa Rican volcanic front. After remaining quiescent for more than a century, in 1996 it started to show signs of unrest, until a first phreatomagmatic ...
Procesos sísmicos y volcánicos en los siglos XVII Y XVIII: Casos específicos de América Central
Seismic and volcanic processes in the seventeenth and eighteenth centuries: specific cases of Central America.
(2016)
El objetivo de este trabajo es mostrar cómo el encuentro entre la Historia y la Geología abren conjuntamente una ventana hacia una mejor com-prensión de las implicaciones de las manifestaciones geológicas, tales como el ...
El sismo de Capellades del 2016 y su secuencia sísmica: manifestación de fallamiento de rumbo en el arco volcánico de Costa Rica
The 2016 Capellades earthquake and its seismic sequence: Expression of strike-slip faulting in the volcanic arc of Costa Rica
(2018-05)
El 30 de noviembre del 2016 a las 18:25 (00:25 UTC del 1º de diciembre) ocurrió un sismo de Mw 5,5 a una profundidad de 2,7 km, 4 km al norte de Capellades de Alvarado, Costa Rica. Fue ...
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 ...
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 ...
Volcano hazard and surveillance in Costa Rica
Peligro y vigilancia volcánica en 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 ...
Magmatic and Tectonic Domains of Central Costa Rica and the Irazú-Turrialba Volcanic Complex Revealed by Ambient Noise Tomography
(2022-11)
The Central America Volcanic Arc runs from Guatemala to Panama, locally interrupted in Costa Rica after the twin-system Irazú-Turrialba Volcanic Complex, at the onset of the Talamanca Cordillera. A marked geological ...
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 ...