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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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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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Junji Koyama, Motohiro Tsuzuki and Kiyoshi Yomogida
A distinct difference of the earthquake activity in megathrust subduction zones is pointed out, concerning seismic segmentations in the vicinity of Japan?that is, the apparent distribution of earthquake hypocenters characterized by Along-dip Double Segme...
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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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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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Gabriel Gonzalez,Daniel Carrizo
Pág. 223 - 244
The Salar del Carmen Fault is the most important strand of the Atacama Fault System exposed along the eastern border of the Sierra del Ancla. The younger slip event along this fault forms seven consecutive 8 km long north-south striking fault segments th...
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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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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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Firdawaty Marasabessy,Asri A. Muhammad
Pág. 12 - 19
Bobanehena village is geographically located in the coastal area of subduction route, causing the village to be vulnerable to frequent earthquakes. The 5 SR earthquake struck the village in 2015 caused heavy damages to people's houses. The houses that ar...
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Kervin Chunga,Felipe Ochoa-Cornejo,Maurizio Mulas,Theofilos Toulkeridis,Edgar Menéndez
Pág. 66 - 81
Few moderate-to-strong earthquakes associated with active and capable geological faults have been documented for the southern coastal region of Ecuador. The seismic record of Ecuador initiates with the Guayaquil earthquake in 1787 (Mw 6.5), followed by t...
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Byunghyun Choi, Akemi Nishida, Tatsuya Itoi and Tsuyoshi Takada
After the Tohoku earthquake in 2011, we observed that aftershocks tended to occur in a wide region after such a large earthquake. These aftershocks resulted in secondary damage or delayed rescue and recovery activities. In addition, it has been reported ...
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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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Jorge Quezada,Gabriel Gonzalez,Tibor Dunai,Arturo Jensen,Joaquim Juez-Larre
Pág. 81 - 96
The age of the uppermost emerged marine terrace in the Caldera-Bahía Inglesa area, located at 224±6 m a.s.l. is presented herein. The methodology applied is based on the exposure ages in clasts of quartz using cosmogenic 21Ne. The age obtained was 0.86±0...
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Aditya Saputra, Christopher Gomez, Ioannis Delikostidis, Peyman Zawar-Reza, Danang Sri Hadmoko, Junun Sartohadi and Muhammad Anggri Setiawan
Located approximately a hundred kilometres north of Java Subduction Zone, Java Island has a complicated geology and geomorphology. The north zone is dominated by the folded area, the centre is dominated by the active volcanic arc and the south of Java in...
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Aditya Saputra, Christopher Gomez, Ioannis Delikostidis, Peyman Zawar-Reza, Danang Sri Hadmoko, Junun Sartohadi and Muhammad Anggri Setiawan
Located approximately a hundred kilometres north of Java Subduction Zone, Java Island has a complicated geology and geomorphology. The north zone is dominated by the folded area, the centre is dominated by the active volcanic arc and the south of Java in...
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Marcelo Contreras, Andrés Tassara, Muriel Gerbault, Rodolfo Araya, Klaus Bataille
Pág. 247 - 262
We study interseismic deformation preceding the Mw8.8 2010 Maule earthquake by means of two-dimensional
finite-element modeling. Our goal is to gain insight into the fundamental factors controlling elastic strain build-up and
release in subduction zones,...
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