Palabras clave
subduction
seismicity in Costa Rica
North Panama Deformed Belt
Limon earthquake
tomografía sísmica
subducción
sismicidad de Costa Rica
Cinturón Deformado del Norte de Panamá
terremoto de Limón
Cómo citar
Resumen
El Caribe Sur de Costa Rica fue en 1991 el escenario del último gran terremoto (Mw 7,7) entre la placa Caribe y la microplaca de Panamá. Pese a la alta sismicidad y avances en la cobertura de las redes sísmicas, esa zona carece de imágenes tomográficas detalladas. Usando los paquetes VELEST y SIMULPS, presentamos los modelos de velocidad unidimensional y tridimensional resultantes de la inversión de 1208 sismos registrados entre 1998 y 2020 por la Red Sismológica Nacional (RSN). Esta nueva tomografía muestra una franja de bajas velocidades que se inclina desde el Caribe hacia el suroeste hasta los 50 km de profundidad debajo de Talamanca, incluyendo el hipocentro del terremoto de Limón y sismicidad hasta los 30 km. Se interpreta esta configuración como la subducción de la placa Caribe debajo de la microplaca de Panamá y el terremoto de Limón como un evento de zona sismogénica interplacas. La geometría determinada proporciona un nuevo marco para interpretar la compleja tectónica del sureste de Costa Rica.
Citas
Adamek, S., Tajima, F. y Wiens, D. G. (1987). Seismic rupture associated with subduction of the Cocos Ridge, Tectonics, 6(6), 757-774.
Adamek, S., Frohlich, C. y Pennington, W. D. (1988). Seismicity of the Caribbean‐Nazca boundary: Constraints on microplate tectonics of the Panama region. Journal of Geophysical Research: Solid Earth, 93(B3), 2053-2075.
Arroyo, I. G., Husen, S., Flüh, E. R., Goßler, J., Kissling, E., y Alvarado, G. E. (2009). Three-dimensional P-wave velocity structure on the shallow part of the Central Costa Rican Pacific margin from Local Earthquake Tomography using off- and onshore networks. Geophysical Journal International, 179, 827-849. doi:10.1111/j.1365-246X.2009.04342.x
Arroyo, I. G., Grevemeyer, I., Ranero, C. R. y von Huene, R. (2014). Interplate seismicity at the CRISP drilling site: The 2002 Mw 6.4 Osa Earthquake at the southeastern end of the Middle America Trench. Geochemistry, Geophysics, Geosystems, 15, 3035–3050. doi: 10.1002/2014GC005359
Boschini, I. (1989). Incidencia de las fuentes sísmicas en la Región Caribe de Costa Rica (Tesis de licenciatura inédita). Universidad de Costa Rica, San José, Costa Rica.
Boschini, I. y Montero, W. (1994). Sismicidad histórica e instrumental del Caribe de Costa Rica. Revista Geológica de América Central, Volumen especial: Terremoto de Limón, 65-72. doi: 10.15517/rgac.v0i0.13423
Camacho, E. (1994). El tsunami del 22 de abril de 1991 en Bocas del Toro, Panamá. Revista Geológica de América Central, Volumen especial: Terremoto de Limón, 61-64. doi: 10.15517/rgac.v0i0.13422
Camacho, E., Hutton, W. y Pacheco, J. F. (2010). A New Look at Evidence for a Wadati–Benioff Zone and Active Convergence at the North Panama Deformed Belt. Bulletin of the Seismological Society of America, 100(1), 343–348. doi: 10.1785/0120090204
Camacho, E. y Víquez, V. (1993). Historical seismicity of the North Panama Deformed Belt. Revista Geológica de América Central, 15, 49-64. doi: 10.15517/rgac.v0i15.13238
DeMets, C., Gordon, R. G., Argus, D. F., y Stein, S. (1994). Effect of recent revisions to the geomagnetic reversal time scale on estimates of current plate motions. Geophysical Research Letters, 21(20), 2191-2194.
Denyer, P., y Alvarado, G. E. (2007). Mapa geológico de Costa Rica [escala 1:400000]. San José, Costa Rica: Librería Francesa.
DeShon, H., Schwartz, S. Y., Newman, A. V., González, V., Protti, M., Dorman, L. M., Dixon, T. H., Sampsom, D. E. y Flueh, E. R. (2006). Seismogenic zone structure beneath the Nicoya Peninsula, Costa Rica, from three-dimensional local earthquake P- and S-wave tomography. Geophysical Journal International, 164, 109-124. doi:10.1111/j.1365-246X.2005.02809.x
Dinc, N. A., Koulakov, I., Thorwart, M., Rabbel, W., Flueh, E. R., Arroyo, I. G, Taylor, W. y Alvarado, G. (2010). Local earthquake tomography of central Costa Rica: transition from seamount to ridge subduction. Geophysical Journal International, 183(1), 286–302. doi: 10.1111/j.1365-246X.2010.04717.x
Dziewonski, A. M., Ekström, G. y Salganik, M. P. (1992). Centroid-moment tensor solutions for April-June 1991. Physics Earth Planetary Interiors, 71, 6-14.
Eberhart-Phillips, D. (1986). Three-dimensional velocity structure in Northern California Coast Ranges from inversion of local earthquake arrival times. Bulletin of the Seismological Society of America, 76, 1025–1052.
Eberhart-Phillips, D. (1990). Three-dimensional P and S velocity structure in the Coalinga region, California. Journal of Geophysical Research, 95, 15343–15363.
Evans, J. R., Eberhart-Phillips, D., y Thurber, C. H. (1994). User’s manual for SIMULPS12 for imaging Vp and Vp/Vs: a derivative of the Thurber tomographic inversion SIMUL3 for local earthquakes and explosions. United States of America, U.S Geological Survey Open-File Report-94–431: Informe interno.
Fan, G., Beck, S. y Wallace, T. (1993). The seismic source parameters of the 1991 Costa Rica Aftershock sequence: Evidence for a transcurrent plate boundary. Journal Geophysical Research, 98, 15759-15778.
Fernández, J. A., Bottazzi, G., Barboza, G. y Astorga, A. (1994). Tectónica y estratigrafía de la cuenca Limón Sur. Revista Geológica América Central, Volumen Especial Terremoto de Limón, 15–28.
Gempa (2019). SeisComp 3 Real time data acquisition and processing. Potsdam, Alemania: Gempa GmbH. Informe interno.
Goes, S., Velasco, A., Schwartz, S., y Lay, T. (1993). The April 22, 1991, Valle de la Estrella, Costa Rica (Mw = 7.7) earthquake and its tectonic implications. A broadband seismic study. Journal of Geophysical Research: Solid Earth, 98(B5), 8127-8142. doi: 10.1029/93JB00019
Hall, R., y Spakman, W. (2015). Mantle structure and tectonic history of SE Asia. Tectonophysics, 658, 14-45. doi: 10.1016/j.tecto.2015.07.003
Haslinger, F. (1998). Velocity structure, seismicity and seismotectonics of Northwestern Greece between the Gulf of Arta and Zakynthos (Tesis de doctorado inédita). ETH Zurich, Zurich, Switzerland.
Haslinger, F. y Kissling, E. (2001). Investigating effects of 3-D ray tracing methods in local earthquake tomography. Physics of the Earth and Planetary Interiors, 123, 103–114.
Havskov, J., Voss, P. H. y Ottemöller, L. (2020). Seismological Observatory Software: 30 Yr of SEISAN. Seismological Research Letters, 9(3), 1846-1852. doi: https://doi.org/10.1785/0220190313
Husen, S., R. Quintero, E. Kissling y Hacker, B. (2003). Subduction-zone structure and magmatic processes beneath Costa Rica constrained by local earthquake tomography and petrological modeling. Geophysical Journal International, 155, 11-32. doi: 10.1046/j.1365-246X.2003.01984.x
Husen, S., Smith, R. B. y Waite, G. P. (2004). Evidence for gas and magmatic sources beneath the Yellowstone volcanic field from seismic tomographic imaging. Journal of Volcanology and Geothermal Research, 131, 397–410.
Kissling, E. (1988). Geotomography with local earthquake data. Reviews of Geophysics, 26, 659–698.
Kissling, E., Ellsworth, W. L., Eberhart-Phillips, D., y Kradolfer, U. (1994). Initial reference models in local earthquake tomography. Journal of Geophysical Research: Solid Earth, 99, 19635–19646.
Kissling, E., Kradolfer, U., y Maurer, H. (1995). VELEST User’s Guide-short Introduction. Zurich, Suiza: Institute of Geophysics and Swiss Seismological Service, ETH. Manuscrito inédito.
Kobayashi, D., LaFemina, P., Geirsson, H., Chichaco, E., Abrego, A. A., Mora, H. y Camacho, E. (2014). Kinematics of the western Caribbean: Collision of the Cocos Ridge and upper plate deformation. Geochemistry, Geophysics, Geosystems, 15, 1671-1683. doi: 10.1002/2014GC005234
Lienert, B. R. y Havskov, J. (1995). A computer program for locating earthquakes both locally and globally. Seismological Research Letters, 66(5), 26-36.
Linkimer, L., Arroyo, I. G., Alvarado, G., Arroyo, M. y Bakkar, H. (2018). The National Seismological Network of Costa Rica (RSN): An Overview and Recent Developments. Seismological Research Letters, 89(2A), 392-398. doi: 10.1785/0220170166
Lücke, O., y Arroyo, I. G. (2015). Density Structure and Geometry of the Costa Rican Subduction Zone from 3-D Gravity Modeling and Local Earthquake Data. Solid Earth, 6, 1169-1183. doi: 10.5194/se-6-1169-2015
Marshall, J. S., Fisher, D. M., y Gardner, T. W. (2000). Central Costa Rica deformed belt: Kinematics of diffuse faulting across the western Panama block. Tectonics, 19(3), 468-492.
Matumoto, T., Ohtake, M., Latham, G., y Umana, J. (1977). Crustal structure in Southern Central America. Bulletin of Seismological Society of America, 67, 121-133.
Montero, W. (1989). Sismicidad histórica de Costa Rica 1638–1910. Geofísica Internacional, 28, 531-559.
Montero, W. (2001). Neotectónica de la región central de Costa Rica: frontera oeste de la microplaca de Panamá. Revista Geológica de América Central, 24, 29-56. doi: 10.15517/rgac.v0i24.8551
Morell, K. D. (2015). Late Miocene to recent plate tectonic history of the southern Central America convergent margin. Geochemistry, Geophysics, Geosystems, 16, 3362–3382. doi:10.1002/2015GC005971.
Peraldo, G. y Montero, W. (1994). Temblores del periodo colonial de Costa Rica (1a ed.). Cartago, Costa Rica: Editorial Tecnológica.
Plafker, G. y Ward, S. (1992). Backarc thrust faulting and tectonic uplift along the Caribbean Sea coast during the April 22, 1991 Costa Rica earthquake. Tectonics, 11, 709-718.
Ponce, L., Pardo, M., Domínguez, J., Montero, W., Rojas, W., Boschini, I., Suárez, G. y Camacho, E. (1994). Estudio de réplicas del terremoto de Limón usando datos locales: Resultados e implicaciones tectónicas. Revista Geológica América Central, Volumen Especial Terremoto de Limón, 103-110. doi: 10.15517/rgac.v0i0.13437
Protti, M., Schwartz, S. Y. y Zandt, G. (1996). Simultaneous inversion for earthquake location and velocity structure beneath central Costa Rica. Bulleting of the Seimological Society of America, 86, 19–31.
Protti, M. y Schwartz, S. Y. (1994). Mechanics of back arc deformation in Costa Rica: Evidence from an aftershock study of the April 22, 1991, Valle de Estrella, Costa Rica, earthquake (Mw=7.7). Tectonics, 13, 1093-1107.
Quintero, R. y Kissling, E. (2001). An improved P-wave velocity reference model for Costa Rica. Geofísica Internacional, 40, 3–19.
Reyners, M., Eberhart-Phillips, D. y Stuart, G. (1999). A three-dimensional image of shallow subduction: crustal structure of the Raukumara Peninsula, New Zealand. Geophysical Journal International, 137, 873–890.
Silver, E. A., Galewsky, J. y McIntosh, K. D. (1995). Variation in Structure, Style, and Driving Mechanism of Adjoining Segments of the North Panama Deformed Belt. En P. Mann (ed.), Geologic and Tectonic Development of the Caribbean Plate Boundary in Southern Central America (Geological Society of America Special Paper 295, pp. 225-233). Boulder, Colorado: The Geological Society of America, Inc. doi: 10.1130/SPE295
Silver, E. A., Reed, D. L., Tagudin, J. E. y Heil, D. J. (1990). Implications of the north and south Panama thrust belts for the origin of the Panama orocline. Tectonics, 9, 261–281.
Suárez, G., Pardo, M., Domínguez, J., Ponce, L., Montero, W., Boschini, I. y Rojas, W. (1995). The Limón, Costa Rica earthquake of April 22, 1991 (Mw=7.7): Evidence of back-arc thrusting and collisional tectonics in a subduction environment. Tectonics, 14, 518-530.
Syracuse, E. M., Abers, G. A., Fischer, K., MacKenzie, L., Rychert, C., Protti, M., González, V. y Strauch, W. (2008), Seismic tomography and earthquake locations in the Nicaraguan and Costa Rican upper mantle. Geochemistry, Geophysics, Geosystems, 9, Q07S08, doi:10.1029/2008GC001963.
Tajima, F. y Kikuchi, M. (1995). Tectonic implications of the seismic ruptures associated with the 1983 and 1991 Costa Rica earthquakes. En P. Mann (ed.), Geologic and Tectonic Development of the Caribbean Plate Boundary in Southern Central America (Geological Society of America Special Paper 295, pp. 225-233). Boulder, Colorado: The Geological Society of America, Inc. doi: 10.1130/SPE295
Thurber, C. H., (1983). Earthquake locations and three-dimensional cristal structure in the Coyote Lake área Central California. Journal of Geophysical Research, 88, 8226–8236.
Vannucchi, P., Sak, P. B., Morgan, J. P., Ohkushi, K. y Ujiie, K. (2013). Rapid pulses of uplift, subsidence, and subduction erosion offshore Central America: Implications for building the rock record of convergent margins. Geology, 41(9), 995–998. doi: 10.1130/G34355.1
Virieux, J. y Farra, V. (1991). Ray tracing in 3-D complex isotropic media:an analysis of the problema. Geophysics, 56, 2057–2069.
Wessel, P., Smith, W. H. F., Scharroo, R., Luis, J. y Wobbe, F. (2013). Generic Mapping Tools: Improved Version Released. EOS, Transactions American Geophysical Union, 94(45), 409–410, doi: 10.1002/2013EO450001
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