Results 61 to 70 of about 20,973 (212)

SEISMIC FRAGILITY EVALUATION OF SOIL-PILE-STRUCTURE INTERACTION EFFECTS SUBJECTED TO MAINSHOCK-AFTERSHOCK RECORDS

International Journal for Computational Civil and Structural Engineering, 2023
In most current seismic design on bridges, only mainshock actions are considered without incorporating the effect of mainshock-aftershock (MA) sequences and interaction soil-pile.However, a large mainshock usually triggers numerous aftershocks in a ...
saddouki souheyla, Djarir Яхиауи, Rafik Demagh   +2 more
doaj   +1 more source

Importance of direct and indirect triggered seismicity

, 2003
Using the simple ETAS branching model of seismicity, which assumes that each earthquake can trigger other earthquakes, we quantify the role played by the cascade of triggered seismicity in controlling the rate of aftershock decay as well as the overall ...
Agnès Helmstetter, Correig, Davis, Felzer, Felzer, Gardner, Harris, Helmstetter, Kagan, Knopoff, Molchan, Ogata, Ogata, Reasenberg, Sornette, Stein   +15 more
core   +4 more sources

Opportunities for the U.S. Geological Survey's National Seismic Hazard Model to Improve Seismic Risk Assessment of Critical Infrastructure

Earthquake Spectra, Volume 42, Issue 2, May 2026.
As fragility and risk modeling techniques and computational capabilities evolve, complemented by moving toward more routine and systematic seismic risk assessment of all buildings and critical infrastructure, the authors pose a few critical questions to investigate how the U.S. Geological Survey (USGS) National Seismic Hazard Models (NSHMs) can be used
Kishor S. Jaiswal, N. Simon Kwong
wiley   +1 more source

Comparative study on dynamic response and probabilistic seismic fragility of underground caverns under near-fault and far-field mainshock–aftershock sequences

Underground Space
Actual seismic events typically exhibit mainshock–aftershock sequence characteristics, and source characteristics have a significant impact on cavern response.
Pengfei Chen, Quan Jiang, Yong Xia, Zhijun Liu, Long Li   +4 more
doaj   +1 more source

Insights into the Aftershocks and Inter-Seismicity for Some Large Persian Earthquakes [PDF]

Journal of Sciences, Islamic Republic of Iran, 2015
This paper focuses on aftershocks behavior and seismicity along some co-seismic faults for large earthquakes in Iran. The data of aftershocks and seismicity roughly extracted from both the Institute of Geophysics the University of Tehran (IGUT) and ...
M. Nemati
doaj  

Preliminary Analysis of the Aftershock Sequence of the February 6, 2023, Turkey Earthquake [PDF]

مجلة جامعة النجاح للأبحاث العلوم الطبيعية
The February 6, 2023, Turkey earthquake with a moment magnitude (Mw=7.8) will be recognized as one of the most powerful earthquakes to strike a large metropolitan area in recent memory.
Radwan El-Kelani, Anas Atatri
doaj   +1 more source

Determination of the major axis direction and macroseismic epicenter of the assessed intensity map based on relocated aftershock sequences

Frontiers in Earth Science, 2023
The rapid assessment of an intensity map following a strong earthquake forms the foundation for risk assessment and emergency response in Chinese mainland.
Zhishuang Xu, Jie Liu, Alimujiang Yalikun, Xiaoli Li, Jing Ren, Xintao Wen   +5 more
doaj   +1 more source

Nonstationary ETAS models for nonstandard earthquakes

, 2014
The conditional intensity function of a point process is a useful tool for generating probability forecasts of earthquakes. The epidemic-type aftershock sequence (ETAS) model is defined by a conditional intensity function, and the corresponding point ...
Kumazawa, Takao, Ogata, Yosihiko
core   +1 more source

User Acceptance and Perceptions of Earthquake Early Warning Systems as a Function of Information Type: The Case of Postearthquake Nepal

Earthquake Spectra, Volume 42, Issue 2, May 2026.
What drives user perceptions and acceptance of earthquake early warning systems (EEWS) as an emerging technology? Do distinct types of transparency into EEWS affect users’ perceptions of the system's usefulness and desirability differently? To address these questions, we focus on Nepal, an earthquake‐prone country with no active public EEWS ...
Shana Scogin, Sagar Khanal, Saphal Joshi, Rachael Lau   +3 more
wiley   +1 more source

Engineering Applications Using Probabilistic Aftershock Hazard Analyses: Aftershock Hazard Map and Load Combination of Aftershocks and Tsunamis

Geosciences, 2017
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.
Byunghyun Choi, Akemi Nishida, Tatsuya Itoi, Tsuyoshi Takada   +3 more
doaj   +1 more source