Keywords
fuentes sísmicas de Costa Rica
Seismicity in 2014
Costa Rican seismic sources
How to Cite
Abstract
During 2014, the National Seismological Network (RSN: UCR-ICE) located 6836 earthquakes and reported 219 felt events. There were six significant earthquakes with magnitude ≥ 6.0. The majority (83%) of felt earthquakes were shallow (< 30 km) and 74% had magnitudes (Mw) between 3.0 and 4.9. Local and regional faulting caused 64% of the felt earthquakes and the subduction of the Cocos Plate beneath the Caribbean Plate and the Panama microplate caused 29%. The highest intensity observed during 2014 was VI (Modified Mercalli) on the Burica peninsula during the December 8 earthquake (6.1 Mw) with the epicenter at western Panama.References
ADAMEK, S., FROHLICH, C. & PENNINGTON, W., 1988: Seismicity of the Caribbean-Nazca Boundary Constraints on Microplate Tectonics of the Panama Region.- J. Geophys. Res. 93: 2053-2075.
LIENERT, B. R. & HAVSKOV, J., 1995: A Computer Program for Locating Earthquakes Both Locally and Globally.- Seis. Res. Lett. 66: 26-36, doi: 10.1785/gssrl.66.5.26.
LINKIMER, L. & ALVARADO, G. E., 2014: Distribución espacio-temporal de la sismicidad sentida en Costa Rica (1976-2013) en el marco histórico del 30 aniversario (1982-2012) de la Red Sismológica Nacional (RSN: UCR-ICE).- Rev. Geol. Amér. Central, Vol. Esp. 30 aniversario: 45-71.
MARSHALL, J. S., FISHER, D. M. & GARDNER, T. W., 2000: Central Costa Rica deformed belt: Kinematics of diffuse faulting across the western Panama block.- Tectonics, 19, 468-492.
OTTEMÖLLER, L., VOSS, P. & HAVSKOV, J., 2011: SEISAN: The Earthquake Analysis Software for Windows, Solaris, LINUX, and MACOSX, version 9.0.1.- 361 págs. Univ. of Bergen, Bergen.