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Leopold I. Lobkovsky, Alexey A. Baranov, Igor A. Garagash, Mukamay M. Ramazanov, Irina S. Vladimirova, Yurii V. Gabsatarov, Dmitry A. Alekseev and Igor P. Semiletov
A correlation is observed between changes in the level of Earth?s seismic activity and increments of the atmospheric methane concentration over the past 40 years. Trigger mechanisms are proposed for methane emissions and glacier collapse in polar regions...
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Brian Taylor, Elizabeth K. Benyshek and Andrew M. Goodliffe
In the Solomon Islands, arc magmas are erupting on the subducting Australia Plate. These island (Simbo) and submarine arc volcanoes (Kana Keoki, Coleman and Pavuvu) are about to be recycled by rapid subduction. We identify eight of their former equivalen...
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Patricio Venegas-Aravena and Enrique G. Cordaro
Field measurements in subduction regions have revealed the presence of non-seismic pre-earthquake signals such as electromagnetic or acoustic emission, gas liberation, changes in Earth?s surface temperature, changes at the ionospheric level, or fluid mig...
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Leopold I. Lobkovsky, Irina S. Vladimirova, Yurii V. Gabsatarov and Dmitry A. Alekseev
We discussed the peculiarities of the seismic cycle in Aleutian subduction zone, characterized by an oblique subduction setting. It was shown that the orientation of the plate convergence vector relative to the subduction zone axis can have a significant...
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William Araujo and Christian Ledezma
Liquefaction-induced lateral spreading can induce significant deformations and damage in existing structures, such as ports, bridges, and pipes. Past earthquakes have caused this phenomenon in coastal areas and rivers in many parts of the world. Current ...
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Payam Momeni, Katsuichiro Goda, Mohammad Heidarzadeh and Jinhui Qin
Historical records of major earthquakes in the northwestern Indian Ocean along the Makran Subduction Zone (MSZ) indicate high potential tsunami hazards for coastal regions of Pakistan, Iran, Oman, and western India. There are fast-growing and populous ci...
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Leopold Lobkovsky
A seismogenic trigger mechanism is proposed to explain the abrupt climate warming phases in the Arctic as a result of strong mechanical disturbances in the marginal region of the Arctic lithosphere. Those disturbances might have been caused by great eart...
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Jorge Quezada,Edilia Jaque,Nicole Catalán,Arturo Belmonte,Alfonso Fernández,Federico Isla
Pág. 295 - 315
The Tirúa-Mocha Island area (38.2°-38.4° S) in southern Chile has been affected by two megaearthquakes in only 50 years: the 1960 Mw=9.5 Valdivia earthquake and 2010 Mw=8.8 Maule earthquake. We studied in the field the vertical ground movements occurred ...
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Rolly E. Rimando, Jeremy M. Rimando and Robjunelieaaa B. Lim
A 75 km-long, generally NE-striking ground rupture associated with the 6 February 2012 MW 6.7 (Mb 6.9) Negros earthquake was mapped on the eastern side of Negros Island, Philippines. It closely follows a previously unmapped, pre-existing fault trace alon...
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Isabel Santibáñez,José Cembrano,Tiaren García-Pérez,Carlos Costa,Gonzalo Yáñez,Carlos Marquardt,Gloria Arancibia,Gabriel González
Pág. 32 - 65
The Chilean Andes, as a characteristic tectonic and geomorphological region, is a perfect location to unravel the geologic nature of seismic hazards. The Chilean segment of the Nazca-South American subduction zone has experienced mega-earthquakes with Mo...
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