Results 31 to 40 of about 1,245 (168)

Evidence for Past Subduction Earthquakes at a Plate Boundary with Widespread Upper Plate Faulting: Southern Hikurangi Margin, New Zealand [PDF]

open access: yes, 2015
At the southern Hikurangi margin, New Zealand, we use salt marsh stratigraphy, sedimentology, micropaleontology, and radiocarbon dating to document evidence of two earthquakes producing coseismic subsidence and (in one case) a tsunami over the past 1000 ...
Clark, Kate J.   +5 more
core   +1 more source

Detection of Liquefaction Phenomena from the 2017 Pohang (Korea) Earthquake Using Remote Sensing Data

open access: yesRemote Sensing, 2019
On 15 November 2017, liquefaction phenomena were observed around the epicenter after a 5.4 magnitude earthquake occurred in Pohang in southeast Korea. In this study, we attempted to detect areas of sudden water content increase by using SAR (synthetic ...
Hyunseob Baik   +2 more
doaj   +1 more source

High-resolution palynological analysis in Lake Sapanca as a tool to detect recent earthquakes on the North Anatolian Fault [PDF]

open access: yes, 2009
High-resolution palynological analysis of a 38-cm-long core collected from Lake Sapanca, northwest Turkey, reveals large earthquakes that occurred during the second half of the 20th century along the North Anatolian Fault Zone. Four events have disturbed
Boyraz, S, Gürbüz, A, Leroy, SAG
core   +1 more source

Large earthquakes create vertical permeability by breaching aquitards [PDF]

open access: yes, 2016
Hydrologic responses to earthquakes and their mechanisms have been widely studied. Some responses have been attributed to increases in the vertical permeability. However, basic questions remain: How do increases in the vertical permeability occur?
Liao, X   +4 more
core   +2 more sources

Earthquake Environmental Effects and Building Properties Controlling Damage Caused by the 6 February 2023 Earthquakes in East Anatolia

open access: yesGeosciences, 2023
On 6 February 2023, East Anatolia was devastated by two major earthquakes resulting in hundreds of thousands of collapses and tens of thousands of human casualties.
Spyridon Mavroulis   +4 more
doaj   +1 more source

Preliminary identification of earthquake triggered multi-hazard and risk in Pleret Sub-District (Yogyakarta, Indonesia)

open access: yesGeo-spatial Information Science, 2021
Yogyakarta is one of the large cities in Central Java, located on Java Island, Indonesia. The city, and the Pleret sub-district, where the study has taken place, is prone to earthquake hazards, because it is close to several seismically active zones ...
Aditya Saputra   +5 more
doaj   +1 more source

Superficial simplicity of the 2010 El Mayor–Cucapah earthquake of Baja California in Mexico [PDF]

open access: yes, 2010
The geometry of faults is usually thought to be more complicated at the surface than at depth and to control the initiation, propagation and arrest of seismic ruptures.
A Sladen   +35 more
core   +4 more sources

Field relations among coseismic ground motion, water level change and liquefaction for the 1999 Chi‐Chi (Mw = 7.5) earthquake, Taiwan

open access: yesGeophysical Research Letters, 2003
Field‐based, basin‐wide relations are discovered among coseismic ground motion, water‐level change and liquefaction induced by the 1999 (Mw = 7.5) Chi‐Chi earthquake, Taiwan. The relations imply thresholds of 4.4 m/s2 and 0.6 m/s in the spectral acceleration and velocity at 1 Hz, respectively, below which pore pressure does not change appreciably and ...
Chi‐Yuen Wang   +4 more
openaire   +1 more source

Future trends in paleoseismology: Integrated study of the seismic landscape as a vital tool in seismic hazard analyses [PDF]

open access: yes, 2005
This paper forms the Introduction to this Special Issue of Tectonophysics, devoted to selected scientific research presented during events sponsored by the INQUA Subcommission on Paleoseismicity in the past few years.
AUDEMARD F., MARCO S., MICHETTI A.M.
core   +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

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