Along-strike segmentation in the northern Caribbean plate boundary zone (Hispaniola sector): Tectonic implications

Rodríguez-Zurrunero, Á.; Granja-Bruña, José Luis; Muñoz-Martı́n, A.; Leroy, Sylvie; Brink, U. ten; Gorosabel-Araus, J.M.; Peña, L. Gómez de la; Druet, M.; Carbó-Gorosabel, A.

doi:10.1016/j.tecto.2020.228322

Cited by 20 publications

(32 citation statements)

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“…The positive flower structure in the middle part of the WPS provides evidence of a current strike‐slip component in WPS area (Figure 12a, km 60–65, and Figure 12b, km 48–53) (Rodríguez‐Zurrunero et al., 2020). Such a fault pattern, suggests that lateral slip, together with thrusting, are the two major styles of deformation operating in the WPS.…”

Section: Discussionmentioning

confidence: 96%

“…It implies a southward tilt of the WPS, possibly related to a recent activity of the imbricated thrust zone shearing off the WPS sedimentary strata on its northern slope (Figure 6, km 40–55). Such observations suggest an ongoing compressional stress field in WPS, in particular on its northern limit (Rodríguez‐Zurrunero et al., 2020).…”

Section: Discussionmentioning

confidence: 99%

“…On the Island of Hispaniola, the SOFZ and the North Hispaniola fault (Deformation front) partition the oblique convergence into boundary‐parallel and boundary‐normal components (Rodríguez‐Zurrunero et al., 2019, 2020). The SOFZ accommodates most of the left‐lateral strain of the current Caribbean‐North American relative plate motion as a major transpressional fault system.…”

Section: Tectonic Settingsmentioning

confidence: 99%

“…However, the regional approach of Corbeau et al (2019) shows the scarcity of this type of event in the northern Caribbean Plate in which most focal mechanisms are thrust-fault related. The lack of focal mechanisms with left lateral strike-slip component may suggest that the accommodation of the horizontal component of displacement may be mostly aseismic (Rodríguez-Zurrunero et al, 2020) or that there are not enough seismometers to properly record it. Current compressional deformation is mainly N-S to NNE-SSW as the result of the collision between the Bahama Banks and Hispaniola (Corbeau et al, 2019).…”

Section: Pliocene To Present Deformation: Transpressional Phasementioning

confidence: 99%

“…The parts of the fault system studied in this paper are outlined in red. Red line with black dots represent the fault strand identified by Rodríguez-Zurrunero et al (2020) in the Windward Passage Sill (WPS). Faults in black are from previous studies (Calais & Mercier de Lépinay, 1989Corbeau et al, 2016;Leroy et al, 2015;Granja Bruña et al, 2014;Leroy et al, 1996;Mann et al, 1995Mann et al, , 1998Mauffret & Leroy, 1997).…”

mentioning

confidence: 99%

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Polyphase Deformation and Strain Migration on the Septentrional‐Oriente Fault Zone in the Windward Passage, Northern Caribbean Plate Boundary

et al. 2021

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Oblique collision between the Caribbean plate and the Bahama Banks has lead an eastward migration of the northern Caribbean plate boundary by successive southward jumps of major strike‐slip faults. The Septentrional‐Oriente Fault zone (SOFZ) defines the present‐day northern Caribbean plate boundary accommodating most of the eastward escape of the Caribbean plate. Here, we reevaluate the complex history of the SOFZ along the Windward Passage area between the easternmost region of Cuba and the northwest of Haiti. Based on seismic reflection and swath‐bathymetric data set we interpret the structure and tectonic pattern of the Windward Passage. The tectono‐sedimentary framework of this large strait shows contrasting patterns of deformation linked to a complex polyphase tectonic history of dominantly strike‐slip faulting. SOFZ segments offset the seismic units and yield key markers of displacement along the fault system. Our study provides structural and stratigraphic insights into the relative timing of deformation along the Windward Passage and presents new elements that constrain the southeastward jump of the north Caribbean plate boundary to its present‐day position. We propose dates for the identified seismic units based on the correlation of offshore deformation phases recorded in the Windward Passage sedimentary cover with major paleogeographic reorganization episodes described onland (Late Eocene, Late Oligocene, Middle Miocene and Late Pliocene). By restoring the offset of the seismic units, we demonstrate that at least ∼80 km of left‐lateral motion has occurred on the SOFZ, and that the SOFZ has been active since the Pliocene.

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Section: Discussionmentioning

confidence: 96%

Section: Discussionmentioning

confidence: 99%

Section: Tectonic Settingsmentioning

confidence: 99%

Section: Pliocene To Present Deformation: Transpressional Phasementioning

confidence: 99%

mentioning

confidence: 99%

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Polyphase Deformation and Strain Migration on the Septentrional‐Oriente Fault Zone in the Windward Passage, Northern Caribbean Plate Boundary

et al. 2021

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Active fault characterization and seismotectonic zoning of the Hispaniola island

Terrier-Sedan

Bertil

2021

J Seismol

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Designing a seismic source model based on the most complete description of potentially active faults and on the kinematics of their latest movements is an essential requirement in seismic hazard studies, at regional and local scales. A study to characterize active faults in the Hispaniola island (today’s Haiti and Dominican Republic) has been conducted in the framework of the probabilistic seismic hazard assessment for Santo Domingo (capital of the Dominican Republic). In this work, we present a seismotectonic map of Hispaniola and its surroundings, based on a compilation and synthesis of geological, geophysical, geodetic and seismological data. Based on these data, distinct seismic zone sources are proposed and classified as either intercrustal domains, major active faults or subduction zones. Each seismic source is described according to several parameters, including its mechanism and current rate of deformation, the associated seismicity and its estimated maximal magnitude. These results constitute an essential database for a homogeneous evaluation of the seismic hazards of Hispaniola.

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Tsunami coastal hazard along the US East Coast from coseismic sources in the Açores convergence zone and the Caribbean arc areas

et al. 2021

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Along-strike segmentation in the northern Caribbean plate boundary zone (Hispaniola sector): Tectonic implications

Cited by 20 publications

References 84 publications

Polyphase Deformation and Strain Migration on the Septentrional‐Oriente Fault Zone in the Windward Passage, Northern Caribbean Plate Boundary

Polyphase Deformation and Strain Migration on the Septentrional‐Oriente Fault Zone in the Windward Passage, Northern Caribbean Plate Boundary

Active fault characterization and seismotectonic zoning of the Hispaniola island

Tsunami coastal hazard along the US East Coast from coseismic sources in the Açores convergence zone and the Caribbean arc areas

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