Density structure and geometry of the Costa Rican subduction zone from 3-D gravity modeling and local earthquake data [PDF]
The eastern part of the oceanic Cocos Plate presents a heterogeneous crustal structure due to diverse origins and ages as well as plate-hot spot interactions which originated the Cocos Ridge, a structure that converges with the Caribbean Plate in ...
O. H. Lücke, I. G. Arroyo
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Why is seismic activity low in Antarctica?
Oceanic intraplate earthquakes which occurred in the oceanic lithosphere show the following features : 1. The level of oceanic intraplate seismicity appears to increase from high latitudes to low latitudes. 2.
Masashi Tani, Ichiro Kawasaki
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Structural analysis of Azerbaijan territory horizontal velocity movement based on GPS-measurements
The contemporary kinematics of Azerbaijan is generated by the northward movement of Arabian plate relative to Eurasian one. This continuous «intervention» of Arabian plate into Eurasian one is the reason of the deformation of the Earth’s crust of the ...
E.V. Akhmedova
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Scale-dependent influence of pre-existing basement shear zones on rift faulting : a case study from NE Brazil [PDF]
Rifting of continental crust initiates faults that are commonly influenced by pre-existing structures. We document newly identified faults cutting Precambrian units in the interior of the NE Brazilian margin to assess the effects of structural ...
Lunn, Rebecca +6 more
core +4 more sources
Seismicity from february 2006 to september 2007 at the Rwenzori Mountains, East African Rift: earthquake distribution, magnitudes and source mechanisms [PDF]
We have analysed the microseismic activity within the Rwenzori Mountains area in the western branch of the East African Rift. Seismogram recordings from a temporary array of up to 27 stations reveal approximately 800 events per month with local ...
Lindenfeld, Michael +7 more
core +2 more sources
Basement Structure and Styles of Active Tectonic Deformation in Central Interior Alaska
Central Interior Alaska is one of the most seismically active regions in North America, exhibiting a high concentration of intraplate earthquakes approximately 700 km away from the southern Alaska subduction zone.
Nilesh C. Dixit, Catherine Hanks
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The initiation and evolution of seismic activity in intraplate regions are controlled by heterogeneous stress and highly fractured rocks within the rock mass triggered by fluid migration.
Yuanzhi Cheng +4 more
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Seismotectonics in Northeastern France and neighboring regions
The region of northeastern France is affected by low-magnitude background seismicity, with the rare occurrence of moderate earthquakes, which gives this region a non-negligible seismic risk. We provide an overview of the seismicity and seismotectonics of
Doubre, Cécile +6 more
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Seismicity characterization of oceanic earthquakes in the Mexican territory [PDF]
We analyzed the seismicity of oceanic earthquakes in the Pacific oceanic regime of Mexico. We used data from the earthquake catalogues of the Mexican National Service (SSN) and the International Seismological Centre (ISC) from 1967 to 2017.
Q. Rodríguez-Pérez +3 more
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A cross‐sections of longitudinal (P) and transverse (S) wave anomalies (attribute δ(VP/VS)) is constructed along the sublatitudinal profile from the Atlantic Ocean to the Pacific Ocean across the regions of the latest Eurasian volcanism. It is correlated
S. Yu. Sokolov
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