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Discrimination between earthquakes and chemical explosions in Eastern Russia using amplitude ratios obtained from analog records
(2006)
Discrimination between earthquakes and chemical explosions is a significant
problem facing many regional seismic networks around the world. Both earthquakes and
chemical explosions are sources of elastic waves; therefore, ...
Lithospheric Structure of the Pampean Flat Slab Region from Double-Difference Tomography
(2019)
We obtain earthquake locations and a detailed three-dimensional velocity model of the flat slab subduction zone in west-central Argentina (latitudes: 32-30°S and longitudes: 70-66°W) using a regional-scale doubledifference ...
Lithospheric structure of Pampean Flat Slab (latitude 30-33°s) and Northern Costa Rica (latitude 9-11°n) Subduction Zones
(2011)
The Pampean flat slab subduction in west-central Argentina (latitude 30-33S) and the steeply dipping Northern Costa Rica subduction zone (latitude 9-11N) show significant along-trench variations in both the subducting and ...
Geometría de la zona sismogénica en el sureste de Costa Rica con base en la secuencia sísmica de Golfito del 2018
(2021-01-01)
Entre agosto y noviembre del 2018 ocurrió una secuencia de sismos en el golfo Dulce, cerca de la ciudad de Golfito, al sureste de Costa Rica. El sismo principal tuvo una magnitud momento (Mw) 6.1 y fue sentido en Costa ...
Ciencia ciudadana y herramientas de comunicación en la Red Sismológica Nacional de la Universidad de Costa Rica
(2020-12-16)
Costa Rica se ubica en el límite entre varias placas tectónicas, por lo que los sismos son comunes y parte de la vida cotidiana de sus habitantes. La Red Sismológica Nacional (RSN), con sede ...
A recent tear in subducting plate explains seismicity and upper mantle structure of southern Costa Rica
(2020-11-12)
Past studies of southern Costa Rica have generated a multitude of tectonic scenarios to account for different data sets. Flat slabs, detached slabs, and slab windows have been proposed to address the uplift of the Cordillera ...
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.
El Sismo de Capellades del 30 de noviembre del 2016
(2016-12)
El Sismo de Capellades del 30 de noviembre del 2016 (Mw 5,5) se originó en la parte intermedia entre los macizos volcánicos del Irazú y Turrialba, a una profundidad bastante somera. Ha sido ...
Seismic anisotropy in southern Costa Rica confirms upper mantle flow from the Pacific to the Caribbean
(2020-09-04)
Surrounded by subducting slabs and continental keels, the upper mantle of the Pacific is largely prevented from mixing with surrounding areas. One possible outlet is beneath the southern part of the Central American isthmus, ...
Crustal seismicity in the Andean Precordillera of Argentina using seismic broadband data
(2020)
In this study, we analyze 100 crustal Precordilleran earthquakes recorded in 2008 and 2009 by 52 broadband seismic stations from the SIEMBRA and ESP, two temporary experiments deployed in the Pampean flat slab region, ...