Results 21 to 30 of about 1,245 (168)

Assessing Susceptibility to Soil Liquefaction Using the Standard Penetration Test (SPT)—A Case Study from the City of Portoviejo, Coastal Ecuador

Land, 2022
The city of Portoviejo in coastal Ecuador was severely affected during the 16 April 2016, Pedernales earthquake (Mw 7.8). Various coseismic liquefaction phenomena occurred, inducing lateral spreading, sand boils, ground subsidence, and sinkholes in soils
Eduardo Ortiz-Hernández, Kervin Chunga, José Luis Pastor, Theofilos Toulkeridis   +3 more
doaj   +1 more source

Tracking surface and subsurface deformation associated with groundwater dynamics following the 2019 Mirpur earthquake

Geomatics, Natural Hazards & Risk, 2023
The Mirpur Mw 5.8 earthquake on September 24, 2019, produced extensive liquefaction-induced surface deformation (LISD) in the surrounding villages. Due to the complexity of seismic hazards and the occurrence of their effects on a large spatial scale, the
Muhammad Younis Khan, Ekrem Saralioglu, Syed Ali Turab, Sher Muhammad   +3 more
doaj   +1 more source

Primary and Secondary Environmental Effects Triggered by the 30 October 2020, Mw = 7.0, Samos (Eastern Aegean Sea, Greece) Earthquake Based on Post-Event Field Surveys and InSAR Analysis

Applied Sciences, 2021
On 30 October 2020, an Mw = 7.0 earthquake struck the eastern Aegean Sea. It triggered earthquake environmental effects (EEEs) on Samos Island detected by field surveys, relevant questionnaires, and Interferometric Synthetic Aperture Radar (InSAR ...
Spyridon Mavroulis, Ioanna Triantafyllou, Andreas Karavias, Marilia Gogou, Katerina-Navsika Katsetsiadou, Efthymios Lekkas, Gerassimos A. Papadopoulos, Issaak Parcharidis   +7 more
doaj   +1 more source

Geological Criteria for Evaluating Seismicity Revisited: Forty Years of Paleoseismic Investigations and the Natural Record of Past Earthquakes [PDF]

, 2011
The identification of individual past earthquakes and their characterization in time and space, as well as in magnitude, can be approached in many different ways with a large variety of methods and techniques, using a wide spectrum of objects and ...
Audemard M. F.A., Michetti A.M.
core   +3 more sources

Liquefaction susceptibility assessment in fluvial plains using airborne lidar: the case of the 2012 Emilia earthquake sequence area (Italy) [PDF]

Natural Hazards and Earth System Sciences, 2015
We report a case study from the Po River plain region (northern Italy), where significant liquefaction-related land and property damage occurred during the 2012 Emilia seismic sequence.
R. Civico, C. A. Brunori, P. M. De Martini, S. Pucci, F. R. Cinti, D. Pantosti   +5 more
doaj   +1 more source

NW-dipping versus SE-dipping causative faults of the 1783 M7.1 Southern Calabria (Italy) earthquake: The contribution from the analysis of the coseismic hydrological changes

Frontiers in Earth Science, 2022
The 1783 Mw7.1 Southern Calabria (Italy) earthquake originated a remarkable number of observations of hydrological changes (variations of flow in springs and streams, liquefaction, changes in water temperature) that occurred in different localities.
Luigi Cucci
doaj   +1 more source

Liquefaction phenomena associated with the Emilia earthquake sequence of May–June 2012 (Northern Italy) [PDF]

Natural Hazards and Earth System Sciences, 2013
In this paper we present the geological effects induced by the 2012 Emilia seismic sequence in the Po Plain. Extensive liquefaction phenomena were observed over an area of ~ 1200 km2 following the 20 May, ML 5.9 and 29 May, ML 5.8 mainshocks; both ...
Emergeo Working Group
doaj   +1 more source

Automatic Identification of Liquefaction Induced by 2021 Maduo M_w7.3 Earthquake Based on Machine Learning Methods

Remote Sensing, 2022
Rapid extraction of liquefaction induced by strong earthquakes is helpful for earthquake intensity assessment and earthquake emergency response. Supervised classification methods are potentially more accurate and do not need pre-earthquake images ...
Peng Liang, Yueren Xu, Wenqiao Li, Yanbo Zhang, Qinjian Tian   +4 more
doaj   +1 more source

Coseismic liquefaction phenomenon analysis by COSMO-SkyMed: 2012 Emilia (Italy) earthquake

International Journal of Applied Earth Observation and Geoinformation, 2015
Abstract The liquefaction phenomenon that occurred in the coseismic phase of the May 20, 2012 Emilia (Italy) earthquake (ML 5.9) is investigated. It was induced by the water pressure increase in the buried and confined sand layers. The level-ground liquefaction was the result of a chaotic ground oscillation caused by the earthquake shaking and the ...
Chini, Marco, Albano, Matteo, Saroli, Michele, Pulvirenti, Luca, Moro, Marco, Bignami, Christian, Falcucci, Emanuela, Gori, Stefano, Modoni, Giuseppe, Pierdicca, Nazzareno, Stramondo, Salvatore   +10 more
openaire   +1 more source

Distribution and Mobility of Coseismic Landslides Triggered by the 2018 Hokkaido Earthquake in Japan

Remote Sensing, 2022
At 3:08 on 6 September 2018 (UTC +9), massive landslides were triggered by an earthquake of Mw 6.6 that occurred in Hokkaido, Japan. In this paper, a coseismic landslide inventory that covers 388 km2 of the earthquake-impacted area and includes 5828 ...
Jiayan Lu, Weile Li, Weiwei Zhan, Yongbo Tie   +3 more
doaj   +1 more source