RT Journal Article T1 Tectonic analysis of the southern of María Cleofas Island from bathymetric and seismic data A1 Carrillo De La Cruz, Juan Luis A1 Núñez Escribano, Diana A1 Escalona Alcázar, Felipe de Jesús A1 Núñez Cornú, Francisco Javier A1 González Fernández, Antonio A1 Córdoba Barba, Diego A1 Dañobeitia, Juan José AB The TsuJal geophysical survey was conducted during the spring of 2014 with the aim to characterize the crustal structure of western Mexico. This geophysical experiment focused on active geological formations such as subduction, faults, and accretionary prisms, which are related to the seismic and tsunamigenic activity. In this work, we used seismic and bathymetric data to characterize the interaction between the Rivera plate (RP) and the North America plate south of María Cleofas Island. By defining the structural trends and subsurface geology, we sought to understand the complexity of the tectonic framework of western Mexico. A migrated seismic section and bathymetric maps were generated via the acquisition and processing of TsuJal geophysical data. Bathymetric data show major seafloor structures related to two basins (Tres Marías and TsuJal), one canyon (Cocodrilo Canyon), and an uplift structure with a north–south trend (Sierra de Cleofas [SC]). Seismic data reveal a compressional regime related to the movement of the RP at the esternmost end of the seismic section and lack of deformation in sediments within the two basins found adjacent to SC. From the results of our data analysis as well as corroborating literature, we interpret an underthrusting of RP beneath the North America plate, causing a compressional tectonic regime with the formation of palm‐tree structures. The ack of deformation may be associated with a heated oceanic plate that facilitates the relative motion of the basement below the sediments. PB Seismological Society of America SN 0895-0695 YR 2019 FD 2019 LK https://hdl.handle.net/20.500.14352/91986 UL https://hdl.handle.net/20.500.14352/91986 LA eng NO Juan Luis Carrillo‐de la Cruz, Diana Núñez, Felipe de Jesús Escalona‐Alcázar, Francisco Javier Núñez‐Cornú, Antonio González‐Fernández, Diego Córdoba, Juan José Dañobeitia; Tectonic Analysis of the Southern of María Cleofas Island from Bathymetric and Seismic Data. Seismological Research Letters 2019;; 90 (5): 1748–1755. NO Consejo Nacional de Ciencia y Tecnologίa (México) NO Ministerio de Ciencia, Innovación y Universidades (España) NO National Oceanography Centre (Reino Unido) NO Universidad Nacional Autonoma de Mexico NO Unidad de Tecnologia Marina (España) NO Armada de Mexico NO Secretaria de Defensa Nacional (Mexico) NO Unidad Municipal de Proteccion Civil y Bomberos (Mexico) NO Gobierno de México DS Docta Complutense RD 6 abr 2025