Results 71 to 80 of about 930,213 (168)

Active Tectonics and Earthquake Geology Along the Pallatanga Fault, Central Andes of Ecuador

open access: yesFrontiers in Earth Science, 2020
Based on new geological data and the analysis of a 4 m spatial resolution Digital Elevation Model (DEM), we provide a detailed and comprehensive description of section of the Chingual Cosanga Pallatanga Puna Fault System, a major active fault system in ...
Stéphane Baize   +10 more
doaj   +1 more source

The effect of seamount subduction on the formation of Holocene marine terraces

open access: yesEarth, Planets and Space
Marine terraces have long been a subject of paleoseismology, revealing the rupture history of megathrust earthquakes. However, the crustal deformation mechanisms responsible for their formation remain inadequately explained by conventional kinematic ...
Junki Komori   +3 more
doaj   +1 more source

Competing Effects of Mountain Uplift and Landslide Erosion Over Earthquake Cycles

open access: yesJournal of Geophysical Research: Solid Earth, 2019
Large earthquakes can construct mountainous topography by inducing rock uplift but also erode mountains by causing landslides. Observations following the 2008 Wenchuan earthquake show that landslide volumes in some cases match seismically induced uplift,
Gen K. Li, A. West, H. Qiu
semanticscholar   +1 more source

The survey and mapping of sand-boil landforms related to the Emilia 2012 earthquakes: preliminary results

open access: yesAnnals of Geophysics, 2012
Sand boils, which are also known as sand blows or sand volcanoes, are among the most common superficial effects induced by high-magnitude earthquakes. These generally occur in or close to alluvial plains when a strong earthquake (M >5) strikes on a ...
Andrea Ninfo   +6 more
doaj   +1 more source

Stability Analysis of GNSS Stations Affected by Samos Earthquake

open access: yesApplied Sciences
An earthquake cycle can cause meters of displacement on the surface and at Global Navigation Satellite System (GNSS) stations. This study focuses on the identification of GNSS stations that have significant displacement because of a Mw 7.0 earthquake ...
Seda Özarpacı
doaj   +1 more source

Crustal deformation in Hong Kong: Insights from GNSS observations and geophysical models

open access: yesInternational Journal of Applied Earth Observations and Geoinformation
This study investigates crustal deformation in Hong Kong using the Global Navigation Satellite System (GNSS) observations from 19 stations and a range of geophysical models. We examine horizontal and vertical land motions (VLM) recorded by GNSS from 2001
Dongju Peng   +6 more
doaj   +1 more source

Unveiling nonlinear site response through time-frequency analysis of earthquake records

open access: yesGeophysical Journal International
It is well known that nonlinear site effects may arise in soils during strong ground motion. This translates into a decrease in propagation velocity, shift of resonance frequencies, increased material damping, and lessened ground motion amplification ...
S. Lai, Alessandra Schibuola, L. Bonilla
semanticscholar   +1 more source

Study on Sediment Discharge Increase Caused by Wenchuan Earthquake Landslide and Heavy Rainfall in the Upper Reaches of the Min River

open access: yes工程科学与技术, 2014
:In order to characterize the increase of the sediment discharge caused by the Wenchuan earthquake and post-seismic heavy rainfall in the upper Min River,the SPOT images,aerial photographs and digital elevation map were interpreted,and landslides ...
丁海容   +6 more
doaj  

Unlocking the hidden secrets of the 2023 Al Haouz earthquake: Coseismic model reveals intraplate reverse faulting in Morocco derived from SAR and seismic data

open access: yesInternational Journal of Applied Earth Observations and Geoinformation
The 2023 Mw 6.8 Al Haouz earthquake struck Morocco’s Atlas Mountains on September 8, causing over 3000 fatalities and extensive damage, revealing hidden seismic hazards in this slowly deforming region. Despite its impact, Al Haouz earthquake has received
Min Bao   +5 more
doaj   +1 more source

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