Results 1 to 10 of about 493 (196)

3D Shear‐Wave Velocity and Density Modeling of the Northern Cascadia Subduction Zone

Journal of Geophysical Research: Solid Earth, Volume 130, Issue 3, March 2025.
Abstract In the Northern Cascadia Subduction Zone (NCSZ), we developed a new 3D model for shear‐wave velocity (VS) and density to improve seismic hazard assessments and ground motion simulations. Utilizing seismic data from the past two decades, we measure surface wave dispersion from ambient noise and earthquake recordings and inverted them for VS ...
A. O. Ojo, S. Molnar, H. Ghofrani
wiley   +1 more source

Hazard and seismic risk of the Southern Cone

Revista de Estudios Latinoamericanos sobre Reducción del Riesgo de Desastres, 2017
With the objective of determining the catastrophic risk profile of Chile and Argentina, a seismic risk assessment following a probabilistic approach was conducted.
Omar-Darío Cardona, Gabriel A. Bernal, Daniela Zuloaga, Mario A. Salgado-Gálvez, Diana González   +4 more
doaj   +1 more source

Seismic Hazard Microzonation Map for the Central Plain of Thailand

Progress in Applied Science and Technology
A study was conducted to investigate the seismic hazard microzonation of the central plain of Thailand, which is situated in an area with a thick quaternary basin. Unconsolidated sediments can lead to amplification of earthquake ground shaking at fundamental frequency and can cause a significant increase in damage to buildings.
Patinya Pornsopin, Sophon Chaila, Chutimon Promsuk, Chirawat Kamjudpai, Passakorn Pananont, Khomphet Phetkongsakul, Wanatchaporn Rungjaeng, Nuttarinee Boonchu   +7 more
openaire   +1 more source

Multimethod Geophysical Imaging of Intermontane Basins: The Case Study of Cascina and Palarzano Plains (Central Apennines, Italy)

International Journal of Geophysics, Volume 2025, Issue 1, 2025.
A novel and integrated geophysical approach has been applied at Cascina and Palarzano plains (Abruzzi region, Central Apennines, Italy) to investigate their subsurface structure with particular attention to the faults bounding the basins. Both plains are characterized by the highest magnetic anomaly intensity measured over the Abruzzi region (up to 10 ...
L. Minelli, I. Nicolosi, F. D’Ajello Caracciolo, R. Carluccio, F. Ferri, L. M. Puzzilli, Pramita Mishra   +6 more
wiley   +1 more source

Seismic Microzonation Map of Chiang Mai Basin, Thailand

Trends in Sciences
The seismic site effect which is controlled by local geological conditions is a key parameter of seismic hazards analysis. This paper presents an observational study of microtremor data to investigate the dynamic characteristics of soil in the Chiang Mai basin (Chiang Mai and Lumphun province), Northern Thailand.
Patinya Pornsopin, Passakorn Pananont, Kevin Patrick Furlong, Sophon Chaila, Chutimon Promsuk, Chirawat Kamjudpai, Khomphet Phetkongsakul   +6 more
openaire   +1 more source

A strategy to address the task of seismic micro-zoning in landslide-prone areas [PDF]

Advances in Geosciences, 2013
As concerns landslide prevention and mitigation policies at the urban scale, the ability of Geographical Information Systems (GIS) to combine multi-layered information with high precision enables technicians and researchers to devote efforts in managing ...
G. Vessia, M. Parise, G. Tromba
doaj   +1 more source

Probabilistic seismic hazard map analysis for Aceh Tenggara district and microzonation for Kutacane city

IOP Conference Series: Earth and Environmental Science, 2021
Abstract The Aceh Tenggara (Southeast Aceh) District, especially Kutacane, is located along with the main GSF (Great Sumatra Fault) system and the Tripa segment in particular based on seismic hazard map of Indonesia 2017. Therefore, the seismic hazard map needs to be updated based on the recent seismotectonic information and the latest ...
I. Irwandi, Umar Muksin, null Asrillah, Andrean V H Simanjuntak, null Asrurifak   +4 more
openaire   +1 more source

Space–time finite element method with domain reduction techniques for dynamic soil–structure interaction problems

International Journal of Mechanical System Dynamics, Volume 4, Issue 2, Page 117-130, June 2024.
Abstract Design of earth structures, such as dams, tunnels, and embankments, against the vibrational loading caused by high‐speed trains, road traffic, underground explosions, and, more importantly, earthquake motion, demands solutions of the dynamic soil–structure Interaction (SSI) problem.
Vikas Sharma, Shion Shimizu, Kazunori Fujisawa   +2 more
wiley   +1 more source

Liquefaction maps in Babol City, Iran through probabilistic and deterministic approaches

Geoenvironmental Disasters, 2018
Background During an earthquake, significant damage can result due to instability of the soil in the area affected by internal seismic waves. Liquefaction is known as one of the major causes of ground failure due to the earthquake.
Mehran Naghizadehrokni, Asskar Janalizadeh Choobbasti, Mohsen Naghizadehrokni   +2 more
doaj   +1 more source

First level seismic microzonation map of Chennai city – a GIS approach [PDF]

Natural Hazards and Earth System Sciences, 2011
Abstract. Chennai city is the fourth largest metropolis in India, is the focus of economic, social and cultural development and it is the capital of the State of Tamil Nadu. The city has a multi-dimensional growth in development of its infrastructures and population. The area of Chennai has experienced moderate earthquakes in the historical past.
openaire   +3 more sources