Results 31 to 40 of about 2,611 (203)

The 2025 Kamchatka Earthquake and Tsunami: Cascading Impacts and Risks to Japan

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT On July 29th, 2025, a large earthquake (Mw 8.8) occurred near the Kamchatka Peninsula. This event caused a tsunami that reached Japan's Pacific coast, even though the source was far away. In this study, we analyze the characteristics of earthquakes and tsunamis and discuss how they relate to the recurrence possibility and risk in Japan.
Ampan Laosunthara, An‐Chi Cheng, Yo Fukushima, Yoshinori Shigihara, Natt Leelawat, Anawat Suppasri, Fumihiko Imamura   +6 more
wiley   +1 more source

Seismic Analysis of the Superlong Base-Isolated Structure Under Multidimensional and Multisupport Excitations

Advances in Civil Engineering
This study utilizes synthetic ground motions to analyze the seismic response of superlong base-isolated structures, with a focus on their multidimensional, spatially varying, and nonstationary characteristics under actual earthquake conditions. A classic
Zheng Li, Xinhao Jin, Jiawei Li
doaj   +1 more source

Rapid Seismic Evaluation of Continuous Girder Bridges with Localized Plastic Hinges

Sensors, 2022
In seismic assessment of continuous girder bridges, plastic hinges form in bridge piers to dissipate seismic energy through nonlinear restoring forces.
Zhaolan Wei, Mengting Lv, Minghui Shen, Haijun Wang, Qixuan You, Kai Hu, Shaomin Jia   +6 more
doaj   +1 more source

Surface Consistent Seismic Hazard Assessment in the Shillong Plateau, Northeast India: A Probabilistic Approach Using Multiple Source Models and a Logic Tree Framework

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT We perform probabilistic seismic hazard analysis (PSHA) in the Shillong Plateau by clubbing the up‐to‐date earthquake data and seismotectonic properties of the study area. Twenty‐one areal seismic sources are delineated based on the updated earthquake catalog, tectonic, and fault plane solutions.
Mohd Shahabuddin, William Kumar Mohanty, Eleftheria Papadimitriou   +2 more
wiley   +1 more source

Seismic excitation of the Chandler wobble revisited [PDF]

Geophysical Journal International, 1979
Summary. An overview is taken of the last decade of studies of the effect of earthquakes on the polar motion. The treatment of the liquid outer core in static deformation is reviewed and some misconceptions in a number of papers are pointed out. Volterra’s formula is generalized to the case of a liquid core which does not obey the highly idealized ...
L. Mansinha, D. E. Smylie, C. H. Chapman
openaire   +1 more source

Sensitivity of 3D Base‐Isolated Buildings to Individual Isolator Variability

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Variability in elastomeric isolators arises from differences in rubber formulation and curing, leading to noticeable changes in stiffness and damping among nominally identical bearings. While most previous studies have examined global isolator variability associated with environmental or aging effects, individual isolator variability has ...
Norouz Jahan, Niel C. Van Engelen
wiley   +1 more source

Numerical Analysis of Seismic Site Effects in Loess Region of Western China under Strong Earthquake Excitations

Shock and Vibration, 2020
The Loess Plateau is one of the most tectonically and seismically active areas in the world. Observations from past strong earthquakes, particularly the Minxian–Zhangxian and Wenchuan earthquakes, have shown distinctive evidence of seismic site effects ...
Tuo Chen, Zhijian Wu, Yanhu Mu, Ping Wang, Qiyin Zhu   +4 more
doaj   +1 more source

Adverse Impact of Earthquake Seismic Loading on Angular Offset Tunnels and Effects of Isolation Grout

Infrastructures, 2022
This paper investigates the effects of seismic loads on tunnels in an attempt to provide better protection from earthquake shaking. Dynamic analysis of angular offset tunnels was performed, and the tunnels’ behavior under earthquake shaking and their ...
Ahmed Elgamal, Nissreen Elfaris
doaj   +1 more source

Concept, Tests, and Optimum Design of Novel Negative Stiffness Friction Dampers for Seismic Protection of Long‐Span Bridges

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Viscous dampers (VDs) are widely used to mitigate the excessive responses of long‐span bridges. However, VDs face some intricate challenges in engineering practices, including high damping coefficient requirement, potential base shear amplification and tremendous damping force under high velocity. To address these issues, this study develops a
Ruisheng Ma, Shaodong Jiang, Kun Xu, Qiang Han, Xiuli Du, Kaiming Bi   +5 more
wiley   +1 more source

Multi‐Hazard Shaking‐Tsunami Fatality Risk Estimation for Coastal Communities

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT This study develops a multi‐hazard fatality risk model for a coastal community (Tofino) on Vancouver Island, Canada, subjected to earthquake‐tsunami threats from the Cascadia subduction megathrust events. The model incorporates variable population distributions and uncertain fatality rate models, in addition to other key model components, such
Katsuichiro Goda
wiley   +1 more source