Results 31 to 40 of about 5,992 (170)

Crustal structure of the Peruvian continental margin from wide-angle seismic studies [PDF]

, 2004
Active seismic investigations along the Pacific margin off Peru were carried out using ocean bottom hydrophones and seismometers. The structure and the P-wave velocities of the obliquely subducting oceanic Nazca Plate and overriding South American Plate ...
A. Krabbenhöft, Adam, Bialas, Byrne, C. Hübscher, Clift, Clift, Cohen, Collot, Collot, Davis, Flueh, Fruehn, Grevemeyer, Gutscher, H. Kopp, Hampel, Hampel, Hayward, Heinbockel, Hilde, Huchon, Hussong, Hübscher, Ito, J. Bialas, Kopp, Kukowski, Kukowski, Kulm, Lallemand, Luetgert, McKee, Moore, Müller, N. Kukowski, Norabuena, Norabuena, Parsons, Pecher, Pecher, Pilger, Pilger, Protti, Purdy, Rüpke, Sandwell, Vogt, von Huene, von Huene, von Huene, von Huene, Walther, Wang, Wessel, Zelt, Zelt   +56 more
core   +1 more source

Carbon Storage in Fold‐and‐Thrust Belts: An Overlooked Gigatonne Storage Opportunity

Greenhouse Gases: Science and Technology, Volume 15, Issue 6, Page 713-730, December 2025.
ABSTRACT This study presents numerical investigations of the trapping characteristics of fold‐and‐thrust belt structures, defining three carbon capture and storage (CCS) play types that could be used to store commercial volumes (millions of tonnes) of CO2.
Lars W. Koehn, Ethan W. Conley, Isabella Andrade, Philip S. Prince, Ryan M. Pollyea   +4 more
wiley   +1 more source

Electrical conductivity of the Pampean Shallow Subduction Region of Argentina near 33 S: evidence for a slab window [PDF]

, 2013
We present a three-dimensional (3-D) interpretation of 117 long period (20–4096 s) magnetotelluric (MT) sites between 31°S and 35°S in western Argentina.
Booker, John R., Burd, Aurora I., Favetto, Alicia Beatriz, Mackie, Randall, Pomposiello, Maria Cristina   +4 more
core   +1 more source

A Possible Tsunamigenic Near‐Trench Strike‐Slip Fault, Offshore North Ecuador–South Colombia

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 12, December 2025.
Abstract Seismic reflection and bathymetry collected along the Ecuador–Colombia obliquely convergent margin allow the first characterization of the NNE‐trending, near‐trench strike‐slip Ancon Fault in the possible source region of the 1906‐Mw8.6–8.8 and 1979‐Mw8.2 earthquakes, which produced devastating tsunamis.
J.‐Y. Collot, G. Ratzov, F. Michaud, A. Galve, J.‐N. Proust, M. Gonzalez, J.‐F. Lebrun, M. Laigle, B. Marcaillou   +8 more
wiley   +1 more source

Earthquake Arrival Association with Backprojection and Graph Theory

, 2019
The association of seismic wave arrivals with causative earthquakes becomes progressively more challenging as arrival detection methods become more sensitive, and particularly when earthquake rates are high.
Delorey, Andrew A., Gomberg, Joan, Johnson, Paul A., McBrearty, Ian W.   +3 more
core   +1 more source

Influence of pre-Andean history over Andean foreland deformation: structural styles in the Malargüe fold-and-thrust belt at 35ºS, Andes of Argentina [PDF]

, 2014
We present the first complete balanced cross-section of the Argentinean Andes at 35ºS. Based on an extensive field survey and limited sub-surface information, we constructed a structural model in which both the tectonic inversion of Mesozoic normal ...
Giambiagi, Laura Beatriz, Gimenez, Mario Ernesto, Mescua, Jose Francisco, Ramos, Victor Alberto, Tassara Oddo, Andres Humberto   +4 more
core   +1 more source

High‐Density Seismic Network for Improved Tomographic Imaging of the Ecuadorian Forearc: Slip Mode Controlled by In Situ Material Heterogeneity

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 12, December 2025.
Abstract Large subduction earthquakes often occur along the Ecuadorian margin. Following the 2016 Pedernales megathrust earthquake (Mw 7.8), a temporary network of 82 stations recorded its aftershocks. Data from this international response and the permanent network run by IG‐EPN showed that subducted seafloor topography, accreted terranes, and ...
Alexander Wickham‐Piotrowski, Anne Meltzer, Gabriela Ponce, Steven Roecker, Susan Beck, Mario Ruiz, Stephen Hernandez, Monica Segovia   +7 more
wiley   +1 more source

Flat slab deformation caused by interplate suction force [PDF]

, 2015
We image the structure at the southern end of the Peruvian flat subduction zone, using receiver function and surface wave methods. The Nazca slab subducts to ~100 km depth and then remains flat for ~300 km distance before it resumes the dipping ...
Clayton, Robert W., Ma, Yiran
core   +2 more sources

Range‐Parallel Extension of the Andes in the 2020 Mw 5.7 Humahuaca Earthquake

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 12, December 2025.
Abstract Normal‐faulting earthquakes in mountain ranges provide important constraints on the dynamics of mountain building. To date, well‐documented examples of range‐parallel extension come primarily from the Tibetan Plateau, limiting our ability to test different models for its cause.
Simon Orrego, Juliet Biggs, Sam Wimpenny, Yasser Maghsoudi   +3 more
wiley   +1 more source

Fault‐Induced Hydration and Serpentinization of the Incoming Lithosphere Enhances Intra‐Slab Seismicity Offshore Taltal (∼25°S), Northern Chile

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 12, December 2025.
Abstract The northern Chilean margin is one of the most seismically active subduction zones, with a high potential for future megathrust earthquakes. The tectonic structure and the state of hydration of the incoming Nazca Plate, and their control on seismogenesis are poorly known, as the offshore domain remains largely unexplored. Here, we present high‐
A. Warwel, D. Lange, A. Dannowski, I. Klaucke, E. Contreras‐Reyes, M. Moreno, J. Diaz‐Naveas, H. Kopp   +7 more
wiley   +1 more source