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Microbial Community Structure Along a Horizontal Oxygen Gradient in a Costa Rican Volcanic Influenced Acid Rock Drainage System
(Springer, 2020)
We describe the geochemistry and microbial diversity of a pristine environment that resembles an acid rock drainage (ARD) but it is actually the result of hydrothermal and volcanic influences. We designate this environment, ...
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 ...
El deslizamiento de las Torres del Irazú del 2020 (Costa Rica): antecedentes, colapso y situación actual
(Universidad Nacional, 2020)
El presente trabajo presenta un recuento de las investigaciones que se realizaron desde el
2011 en el sector inestable conocido como las Torres del Irazú, sobre uno de los
deslizamientos mejor estudiados a nivel mundial ...
Constraints on the sulfur subduction cycle in Central America from sulfur isotope compositions of volcanic gases
(European Association of Geochemistry, 2022-01-20)
The sulfur cycle at convergent margins remains poorly constrained yet is fundamentally important for understanding the redox state of Earth's reservoirs and the formation of ore deposits. In this study we investigate the ...
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 ...
OKSP: a novel deep learning automatic event detection pipeline for seismic monitoring in Costa Rica
(Instituto de Ingenieros Eléctricos y Electrónicos (IEEE), 2021)
Small magnitude earthquakes are the most abundant but the most difficult to locate robustly and well due to their low amplitudes and high frequencies usually obscured by heterogeneous noise sources. They highlight crucial ...
Regional characteristics of observable foreshocks
(Seismological Society of America (SSA), 2022)
Measures of foreshock occurrence are systematically examined using earthquake catalogs for eight regions (Italy, southern California, northern California, Costa Rica, Onshore Japan, Alaska, Turkey, and Greece) after imposing ...
The 27 February 2022 Lop Nor earthquake: detectability, location, and discrimination
(Seismological Society of America (SSA), 2022)
A seismic event with mb 4.8 (Mw 4.2) was detected close to the Chinese Lop Nor nuclear test site on 27 February 2022. Waveforms recorded at regional and far regional distances in central Asia indicate greater likeness with ...
Repeating earthquakes record fault weakening and healing in areas of megathrust postseismic slip
(American Association for the Advancement of Sciences (AAAS), 2020)
Repeating earthquakes (REs) rupture the same fault patches at different times allowing temporal variations in the mechanical behavior of specific areas of the fault to be interrogated over the earthquake cycle. We study ...