Results 101 to 110 of about 151,601 (302)

Spatiotemporal correlations of aftershock sequences

, 2010
Aftershock sequences are of particular interest in seismic research since they may condition seismic activity in a given region over long time spans. While they are typically identified with periods of enhanced seismic activity after a large earthquake ...
Albert, Baiesi, Bakun, Båth, Corral, Corral, Davidsen, Davidsen, Davidsen, Davidsen, Felzer, Fischer, Forsyth, Gomberg, Gutenberg, Hainzl, Hainzl, Helmstetter, Helmstetter, Helmstetter, Helmstetter, Jörn Davidsen, Kagan, Kagan, Kagan, Kagan, Kanamori, Katharina Doblhoff-Dier, Lennartz, Main, Marsan, Narteau, Newman, Ogata, Ogata, Peixoto, Peng, Rubin, Rundle, Shcherbakov, Shcherbakov, Sornette, Sornette, Tiago P. Peixoto, Turcotte, Utsu, Vere-Jones, Wells, Zaliapin   +48 more
core   +1 more source

Evaluation of Modeling Assumptions for Predicting Structural Damage and Train Derailment Under Earthquake Loading

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT The rapid development of new railway networks and the aging of existing infrastructure in seismic‐prone regions continue to motivate the need for efficient methods to simulate the dynamic behavior of coupled train track structure systems. While detailed train–structure interaction (TSI) models can capture complex mechanisms, they are often too
Miguel A. Gomez, Matthew J. DeJong
wiley   +1 more source

Fault activity studies in the Lower Tagus valley and Lisbon region using geophysical data [PDF]

, 2018
he Metropolitan Area of Lisbon and the Lower Tagus Valley (LTV) region are located in central Portugal and inhabited by nearly 4 million people. The region has suffered throughout its history the effect of destructive earthquakes caused by hidden faults,
Alves, Daniela, Borges, José, Carvalho, João, Ghose, Ranajit, Ramalho, Elsa   +4 more
core  

Covariance Structure Modeling of Engineering Demand Parameters in Cloud‐Based Seismic Analysis

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Probabilistic seismic demand modeling aims to estimate structural demand as a function of ground motion intensity—a critical stage in seismic risk assessment. Although many models exist to describe the structural demand, few consider the covariance among engineering demand parameters, potentially overlooking a key factor in improving the ...
Archie Rudman, Enrico Tubaldi, Roberto Gentile, John Douglas   +3 more
wiley   +1 more source

Tectonomagnetic and VLF electromagnetic signals in Central Italy

Annals of Geophysics, 2004
Tectonomagnetic field observations from absolute magnetic field level measurements were undertaken in Central Italy in an area extending between latitude 41°N and 43°N and between longitude 13°E and 15°E.
P. Palangio, G. Mele, S. Lepidi, D. Di Mauro, A. Meloni   +4 more
doaj   +1 more source

Three‐Dimensional Analytical Model of a Free‐Standing Square Rocking Column

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT A three‐dimensional analytical two‐degree‐of‐freedom (2DOF) model is developed to describe the bounded rocking response of free‐standing rigid square columns subjected to bidirectional seismic excitation. The formulation extends Housner's classical planar theory by deriving the full three‐dimensional equations of motion for a column ...
Dimitra Adamopoulou, Michalis F. Vassiliou   +1 more
wiley   +1 more source

Preliminary study of the tectonic structure and seismogenic environment of the M4.7 Feidong earthquake sequence on September 18, 2024 in HefeiKey points

Earthquake Science
At 20:08, on September 18, 2024, an M4.7 earthquake occurred along the Tanlu fault zone in the Feidong County of Hefei, Anhui Province. This earthquake is the largest event in the modern history of Hefei, which caused substantial social impact. To reveal
Hongyu Ni, Junlun Li, Huajian Yao, Xianliang Huang, Lingli Li, Dongrui Zhou, Xiaoli Wang, Shuyuan Yu, Yuanchao Lu, Jianfang Yu, Haigang Zheng, Guili Zhou, Hanwen Zou, Wen Yang, Ming Zhang, Guoyi Chen, Ye Lin, Guanling Peng, Zefeng Li, Haipeng Li   +19 more
doaj   +1 more source

Vulnerability assessment of urban building stock: a hierarchic approach [PDF]

, 2012
In the last decades the evaluation of the seismic risk are of rising concern, considered essential in the activity and definition of strategy planning and urban management.
Costa, A., Ferreira, T., Mendes da Silva, J. A. R., Varum, H., Vicente, R.   +4 more
core   +1 more source

Seismic activities around Shizuoka City.

Papers in Meteorology and Geophysics, 1986
1983年以降、気象庁で採用している新しい震源計算方法によって再計算された震源を用いて、静岡市付近の地震活動を再検討した。地震の分布には、伊豆半島南端と静岡市付近を結ぶテクトニックな構造線を境にして、その北東側と南西側でははっきりした違いが存在する。すなわち北東側には 30 km より深い地震はほとんど存在せず、10 km より浅い地震は非常に少ない。この構造線に直交する方向の断面図からも、この線を境にして震源の深さ分布が変わっていることがはっきりと認められる。また、ごく浅い地震は構造線の周辺に分布する傾向がみられる。 地震活動の時間的変化に関してみると、1974年伊豆半島沖地震が発生する以前は構造線の近くに比較的集中していたのに対して、この地震のあと、構造線の北東側の領域で地震活動が復活した ...
Akio Yoshida, Nobuo Hamada, Takeshi Koizumi   +2 more
openaire   +2 more sources

Quantifying Model Selection Uncertainty in Structural Analysis: Methodology and Application

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT With increasing focus on complex engineering systems under rare events, computational models are critical for predictions due to the scarcity or absence of data. However, selecting an appropriate model can be challenging. Using a single model without available test calibration could result in significant bias in performance predictions. A case
Ya‐Heng Yang, Tracy C. Becker
wiley   +1 more source