Tomografía sísmica del Volcán Barú y alrededores, provincia de Chiriquí, sur occidente de Panamá

Daphne Sagel; Eduardo Camacho Astigarrabía; Inmaculada Serrano

doi:10.48204/j.tecno.v27n1.a6648

Submitted December 30, 2024

Published 2025-01-03

Artículos

Vol. 27 No. 1 (2025): Tecnociencia

Seismic tomography of Baru Volcano and surroundings, province of Chiriquí, southwestern Panama

Daphne Sagel ⁺⁻
Eduardo Camacho Astigarrabía⁺⁻
Inmaculada Serrano ⁺⁻

DOI https://doi.org/10.48204/j.tecno.v27n1.a6648

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References

DOI: 10.48204/j.tecno.v27n1.a6648

Published: 2025-01-03

How to Cite

Sagel , D., Camacho Astigarrabía, E. and Serrano , I. (2025) “Seismic tomography of Baru Volcano and surroundings, province of Chiriquí, southwestern Panama”, Tecnociencia, 27(1), pp. 174–195. doi: 10.48204/j.tecno.v27n1.a6648.

This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

Abstract

A seismic tomography of the Barú volcano and surrounding areas, in southwestern Panama, was carried out. The Barú volcano is one of the last volcanoes in the extreme south of Central America and the studies carried out in this research provide a very important scenario about its internal structure. Through seismic P-wave velocity tomography, images were obtained that show heterogeneities in the internal structure of the Barú volcano, which are due to the area's complex evolution, subduction and tectonics. The most important result is the negative anomaly to the northwest of the Barú volcano and southeast of Cerro Tizingal, present in all the layers, which could be related to a possible magmatic chamber. This study provides an overview of the possibilities of future eruptions, which will allow us to adopt more effective mitigation measures in the areas surrounding the Barú volcano where there is a population of around 20,000 inhabitants.

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References

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[1] Adamek, S., Frohlich, C., & Pennington, W.D. (1988). Seismicity of the Caribbean boundary: Constraints on microplate tectonics of the Panama region, J. Geophys. Res., 93, 2053-2075.

[2] Andrews, D.J. (1989). Mechanics of Fault Junctions, J. Geophys. Res., 94, 9389-9397.

[3] Arroyo, I., & Linkimer, L. (2021). Geometría de la zona sismogénica interplaca en el sureste de Costa Rica a la luz de la secuencia sísmica de Golfito del 2018. Geofísica Internacional 60, 51-75

[4] Bacon, C.D., Mora, A., Wagner, W.L. & Jaramillo, C.A. (2013). Testing geological models of evolution of the Isthmus of Panama in a phylogenetic framework, Botanical Journal of the Linnean Society, 171, 287–300.

[5] Bowin, C., & McKenzie, D., (1976). The relationship between bathymetry and gravity in the Atlantic Ocean., J. Geophys. Res., Solid Earth, 81(11), 1903-1915, https://doi.org/10.1029/JB081i011p01903

[6] Bowland, C., 1984. Seismic stratigraphy and structure of the western Colombian basin (M. A. Tesis), University of Texas at Austin, 195 p.

[7] Camacho, E. (1991). The Puerto Armuelles Earthquake (Southwestern Panama) of July 18, 1934. Rev. Geol. Amér. Central, 13: 1-14.

[8] Camacho, E., (2003). Sismotectónica del extremo norte de la Zona de Fractura de Panamá. Universidad de Panamá, Laboratorio de Geofísica e Hidrogeología.

[9] Camacho Astigarrabia, E., (2009). Sismicidad de las Tierras Altas de Chiriquí. Tecnociencia, 11. 119-130.

[10] Case, J.E., Holcome, T.L., Martin, R.G., 1984. Map of geologic Provinces in the Caribbean Region, Geol. Soc. Am. Memoir. Pág. 162.

[11] Corrigan, H.A., Mann, P., Ingle, J. C., 1990. Forearc response to subduction of the Cocos Ridge. Panamá-Costa Rica, Geol. Soc. Am. Bull. 102, 628-652.

[12] Cowan, H.A. L. Sánchez, E. Camacho, J. Palacios, A. Tapia, D. Irving, D. Esquivel & C. Lindholm. (1996). Seismicity and tectonics of Western Panama from new portable seismic array data, Final Report to the Research Council of Norway, NTNF-NORSAR, Kjeller, Norway. 23pp.

[13] Cowan, H.A., Sánchez, L., Camacho, E., Palacio, J., Tapia, A., Irving, D., Esquivel, D. & Lindholm, C., 1995. Seismicity and Tectonic of western Panama from new portable Seismic array data. Final Report to the Research Council of Norway, NTNF-NORSar. Kjeller, Norway.

[14] DeBoer, J.Z., Defant, M.J., Stewart, R.H., Restrepo, J.F., Clark, L.F., & Ramirez, A.H. (1988). Quaternary calc-alkaline volcanism in western Panama: regional variation and implication for the plate tectonic framework, J. S. Am Earth Sci, 1(3):275–293.

[15] DeBoer, J.Z., Defant, M.J., Stewart, R.H., & Bellon, H. (1991). Evidence for active subduction below western Panama, Geology 19 (1991), pp.649–652.

[16] DeMets, C. (2001). A new estimate for present-day Cocos-Caribbean plate motion: implications for slip along the Central American volcanic arc, Geophys. Res. Lett., 28, 4043–4046. https://doi.org/10.1029/2001GL013518

[17] Denyer, P. (2007). Geología y Geotectónica de América Central y el Caribe. Escuela de geología, Universidad de Costa Rica.

[18] Denyer, P., Montero, W & Alvarado, G., (2003): Atlas tectónico de Costa Rica.- 79 págs. Ed. Univ. Costa Rica, San José.

[19] Díaz Velarde, G. (1999). Consideraciones a la geología regional del Oeste de Panamá. Academia Mexicana de Ingeniería, México, 37 pp.

[20] Duncan, R.A., & Hargraves, R.B. (1984). Plate-tectonic evolution of the Caribbean region in the mantle reference frame. In the Caribbean-South American Plate Boundary and Regional Tectonics, 81-93. Geological Society of America Memoir 162.

[21] Fernández, M., Camacho, E., Molina, E., Marroquín, G. & Strauch, W. (2007). Seismicity and neotectonics. En: Bundschum, J. & Alvarado, G.E. (eds.) Central America: Geology, resources, hazards. London, Taylor & Francis, 323-340.

[22] Fichtner, A., Kennett, B.L.N., Tsai, V.C.,Thurber, C.H., Rodgers, A. J., Tape, C., Rawlinson, N., Borcherdt, R.D., Lebedev, S., Priestley, K., Morency, C., Bozda?, E., Tromp, J., Ritsema, J., Romanowicz, B., Liu, Q., Golos, E., & Lin, F-C. (2024). Seismic Tomography 2024, Bulletin of the Seismological Society of America 2024; 114 (3): 1185–1213. doi: https://doi.org/10.1785/0120230229

[23] Fisher, D, Gardner, T, Sak, P, Sánchez, J, Murphy, K, & Vanucchi, P, (2004). Active thrusting in the inner forearc of an erosive convergent margin, Pacific coast, Costa Rica, Tectonics, 23(5): 13 pp.

[24] Graham, A. (1975). Vegetational paleohistory Studies in Panama and Adyacent Central America/por Alam Graham. En la Botánica y la Historia Natural de Panamá. Pág.163.

[25] Hardy, N. C. (1991). Tectonic evolution of the easternmonst Panama. Basin: Some new data and insights, J. South Am. Earth Sci. 4, 261-269.

[26] Harmon, R.S. (2005). Geological Development of Panama. In: Harmon, R.S. (eds) The Río Chagres, Panama. Water Science and Technology Library, vol 52. Springer, Dordrecht. https://doi.org/10.1007/1-4020-3297-8_4

[27] Havskov, J., & Ottemoller, L. (2000). SEISAN Earthquake Analysis Software. Seismo. Research Letters, 70, 532-534. http://dx.doi.org/10.1785/gssrl.70.5.532

[28] Haskov, J., Vosss, P., & Ottemoller, L. (2020). Seismological Observatory Software: 30 Yr of SEISAN Seismological Research Letters, 91(3): 1846–1852.

[29] https://doi.org/10.1785/0220190313

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[31] Heil, D. (1988). Response of and accretionary prism to transform ridge collision, south of Panama. Tesis de Maestría, University of California at Santa Cruz, 156 p.

[32] Heil, D., Silver, E., Mackay, M., & Moore, G. (1986). Effect of obliquely subducting ridge on structural geometry and bathymetry: South Panama, Geol. Soc. Am. Abstr. Programs, 19: 698.

[33] Herrick, J. A., (2011). "Recurrent voluminous sector collapses at Volcán Barú, Panama", Master's Thesis, Michigan Technological University. http://digitalcommons.mtu.edu/etds/324.

[34] IRHE, (1985). Estudio de prefactibilidad avanzada del complejo Baru– Colorado, informe geovulcanológico [unpub. report]: Instituto de Recursos Hidráulicos y Electrificación, Informe del Convenio IRHE-BID-OLADE, 74 p. [Smithsonian Institution, Global Volcanism Program library collection.]

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