Results 11 to 20 of about 1,887,130 (242)

Imaging overpressurised fracture networks and geological barriers hindering fluid migrations across a slow-deformation seismic gap [PDF]

open access: yesScientific Reports, 2023
There is an ongoing debate on the processes producing background seismicity and deformation transients across seismic gaps, i.e., regions that lack historical large-magnitude earthquakes.
Ferdinando Napolitano   +4 more
doaj   +2 more sources

B-value variations in the Central Chile seismic gap assessed by a Bayesian transdimensional approach [PDF]

open access: yesScientific Reports, 2022
The b-value can be used to characterize the seismic activity for a given earthquake catalog and provide information on the stress level accumulated at active faults.
Catalina Morales-Yáñez   +4 more
doaj   +2 more sources

Shallow slow earthquakes to decipher future catastrophic earthquakes in the Guerrero seismic gap [PDF]

open access: yesNature Communications, 2021
New offshore observations in the Guerrero seismic gap discovered shallow slow earthquakes, which suggest that a portion of the plate interface undergoes stable slip. This may explain the long return period of large earthquakes and why have previous large
R. Plata-Martinez   +13 more
doaj   +2 more sources

Gas and seismicity within the Istanbul seismic gap [PDF]

open access: yesScientific Reports, 2018
Understanding micro-seismicity is a critical question for earthquake hazard assessment. Since the devastating earthquakes of Izmit and Duzce in 1999, the seismicity along the submerged section of North Anatolian Fault within the Sea of Marmara ...
L. Géli   +37 more
doaj   +2 more sources

An ANN-Based Approach for Prediction of Sufficient Seismic Gap between Adjacent Buildings Prone to Earthquake-Induced Pounding

open access: yesApplied Sciences, 2020
Earthquake-induced structural pounding may cause major damages to structures, and therefore it should be prevented. This study is focused on using an artificial neural network (ANN) method to determine the sufficient seismic gap in order to avoid ...
Seyed Mohammad Khatami   +5 more
doaj   +3 more sources

Performance of base-isolated moment resisting steel frames subjected to pounding effects under near-field earthquake ground motions [PDF]

open access: yesJournal of Structural and Construction Engineering, 2021
Despite conservative requirements of existing building code regarding clear seismic gap distance of base-isolated (BI) structures to surrounding moat walls, seismic performance of these structures is still ambiguous under severe earthquake ground motions
Mona Ghalehnoy, Mostafa Masoudi
doaj   +1 more source

Towards using seismic anisotropy to interpret ductile deformation in mafic lower crust [PDF]

open access: yes, 2008
The lower crust forms an important geodynamic control in continental tectonics and the communication and coupling of kinematics between surface and deep-Earth processes.
Tatham, Daniel John
core   +7 more sources

Seismic anisotropy in siliciclastic reservoir rocks [PDF]

open access: yes, 2006
The interpretation of geophysical field measurements of seismic anisotropy is presently limited by our knowledge of the controls of the elastic anisotropy of sedimentary rocks in the subsurface. Traditionally, laboratory ultrasonic velocity measurements
Maddock, Jamie Stewart
core   +7 more sources

THE PROBABILITY OF A STRONG (M≥6.0) EARTHQUAKE IN THE SOUTH FERGANA SEISMIC ACTIVITY ZONE IN THE COMING YEARS

open access: yesГеодинамика и тектонофизика, 2023
There were investigated seismic mode and stress state of the Earth’s crust in the South Fergana seismic activity zone. In the central part of the zone, there was identified an area of a long-term seismic quiescence during which no earthquakes with energy
R. S. Ibragimov   +3 more
doaj   +1 more source

Variation of Fault Creep Along the Overdue Istanbul‐Marmara Seismic Gap in NW Türkiye

open access: yesGeophysical Research Letters, 2023
Strain energy from tectonic loading can be partly released through aseismic creep. Earthquake repeaters, repeatedly activated brittle fault patches surrounded by creep, indicate steady‐state creep that affects the amount of seismic energy available for ...
D. Becker   +4 more
doaj   +1 more source

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