Results 11 to 20 of about 405 (138)

Treatment of discontinuities inside Earth models: Effects on computed coseismic deformations

open access: yesEarth and Planetary Physics, 2021
In this paper, we study how coseismic deformations calculated in 1066 Earth models are affected by how the models treat Earth discontinuities. From the results of applying models 1066A (continuous) and 1066B (discontinuous), we find that the difference ...
Jie Dong   +4 more
doaj   +1 more source

Dueling dynamics of low-angle normal fault rupture with splay faulting and off-fault damage

open access: yesNature Communications, 2023
Despite a lack of modern large earthquakes on shallowly dipping normal faults, Holocene Mw > 7 low-angle normal fault (LANF ...
J. Biemiller, A.-A. Gabriel, T. Ulrich
doaj   +1 more source

The 2017, MD = 4.0, Casamicciola Earthquake: ESI-07 Scale Evaluation and Implications for the Source Model

open access: yesGeosciences, 2021
On 21 August 2017 at 20:57 (local time) a very shallow (H = 1.2 km), moderate (Md = 4.0), earthquake hit the volcanic island of Ischia (Southern Italy), causing the death of two people.
Rosa Nappi   +7 more
doaj   +1 more source

Coseismic effects of the 2016 Amatrice seismic sequence: first geological results

open access: yesAnnals of Geophysics, 2016
Since the beginning of the ongoing Amatrice seismic sequence on August 24, 2016, initiated by a Mw 6.0 normal faulting earthquake, the EMERGEO Working Group (an INGV team devoted to earthquake aftermath geological survey) set off to investigate any ...
EMERGEO W.G. :   +47 more
doaj   +1 more source

Coherence Difference Analysis of Sentinel-1 SAR Interferogram to Identify Earthquake-Induced Disasters in Urban Areas

open access: yesRemote Sensing, 2018
This study proposes a workflow that enables the accurate identification of earthquake-induced damage zones by using coherence image pairs of the Sentinel-1 satellite before and after an earthquake event.
Chih-Heng Lu   +4 more
doaj   +1 more source

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

open access: yesGeomatics, 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   +3 more
doaj   +1 more source

Inversion of synthetic geodetic data for the 1997 Colfiorito events: clues on the effects of layering, assessment of model parameter PDFs, and model selection criteria

open access: yesAnnals of Geophysics, 2008
The 1997 September-October Umbria-Marche sequence has been extensively studied in the past by analyzing coseismic displacement data (GPS, leveling, SAR). Here we focus on synthetic data representative of the main event of the 1997 Umbria-Marche
L. Crescentini, A. Amoruso
doaj   +1 more source

Co-seismic surface effects from very high resolution panchromatic images: the case of the 2005 Kashmir (Pakistan) earthquake [PDF]

open access: yesNatural Hazards and Earth System Sciences, 2011
The use of Very High Resolution (VHR) satellite panchromatic image is nowadays an effective tool to detect and investigate surface effects of natural disasters.
M. Chini, F. R. Cinti, S. Stramondo
doaj   +1 more source

Landslides triggered by an earthquake and heavy rainfalls at Aso volcano, Japan, detected by UAS and SfM-MVS photogrammetry

open access: yesProgress in Earth and Planetary Science, 2018
Unmanned aerial systems (UASs) and structure-from-motion multi-view stereo (SfM-MVS) photogrammetry have attracted a tremendous amount of interest for use in the creation of high-definition topographic data for geoscientific studies.
Hitoshi Saito   +3 more
doaj   +1 more source

Coseismic and Postseismic Crustal Deformation Associated With the 2016 Kumamoto Earthquake Sequence Revealed by PALSAR‐2 Pixel Tracking and InSAR

open access: yesEarth and Space Science, 2020
Coseismic and postseismic crustal deformations caused by earthquake episodes are important in understanding the mechanisms of these episodes as well as the fault rheology near an epicentral area.
Yuji Himematsu, Masato Furuya
doaj   +1 more source

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