Results 21 to 30 of about 18,474 (268)
Anomalies Observed in VLF and LF Radio Signals on the Occasion of the Western Turkey Earthquake (Mw = 5.7) on May 19, 2011 [PDF]
, 2012 VLF radio signals lie in the 10 - 60 kHz frequency band. These radio signals are used for worldwide navigation support, time signals and for military purposes.
Arabelos, D.N. +13 more
core +1 more source
MATEC Web of Conferences, 2018 Groundwater level (GWL) change is one of the earthquake precursors that used for earthquake prediction. The groundwater level change system detector for earthquake prediction at Yogyakarta region - Indonesia contains the GWL detector, signal conditioner,
Laksamana Firdaus Herlambang +3 more
doaj +1 more source
IEEE Access, 2019 Kernel-based two-dimensional principal component analysis (K2DPCA), a nonlinear method, was performed to examine ionospheric 2-D total electron content (TEC) variations obtained from the NASA Global Differential GPS (GDGPS) network, which consisted of ...
Jyh-Woei Lin +2 more
doaj +1 more source
Annals of Geophysics, 1997 Two magnetotelluric stations have been installed in the South-Eastern Thessaly basin (Central Greece), which have recorded the geomagnetic and geoelectric fields since 1993.
E. E. Papadimitriou +4 more
doaj +1 more source
Prediction of the date, magnitude and affected area of impending strong earthquakes using integration of multi precursors earthquake parameters [PDF]
Natural Hazards and Earth System Sciences, 2011 Usually a precursor alone might not be useful as an accurate, precise, and stand-alone criteria for the earthquake parameters prediction. Therefore it is more appropriate to exploit parameters extracted from a variety of individual precursors so that ...
M. R. Saradjian, M. Akhoondzadeh
doaj +1 more source
Pressure stimulated currents in rocks and their correlation with mechanical properties [PDF]
, 2004 The spontaneous electrification of marble samples was studied while they were subjected to uniaxial stress. The Pressure Stimulated Current (PSC) technique was applied to measure the charge released from compressed Dionysos marble samples, while they ...
Agioutantis, Z +6 more
core +3 more sources
Georesistivity precursors to the Tangshan earthquake of 1976
Annals of Geophysics, 1997 Georesistivity precursors and corresponding coseismic effects to the Tangshan earthquake of 1976 are given as follows: 1) resistivity measurements with accuracies of 0.5% or better for over 20 years show that resistivity decreases of several percent ...
F. Lu, B. Zhao, F. Qian
doaj +1 more source
Remote Sensing, 2022 Predicting the parameters of upcoming earthquakes has always been one of the most challenging topics in studies related to earthquake precursors. Increasing the number of sensors and satellites and consequently incrementing the number of observable ...
Mehdi Akhoondzadeh, Dedalo Marchetti
doaj +1 more source
Unfolding the procedure of characterizing recorded ultra low frequency, kHZ and MHz electromagetic anomalies prior to the L'Aquila earthquake as pre-seismic ones. Part I [PDF]
, 2009 Ultra low frequency, kHz and MHz electromagnetic anomalies were recorded prior to the L'Aquila catastrophic earthquake that occurred on April 6, 2009. The main aims of this contribution are: (i) To suggest a procedure for the designation of detected EM ...
C. Nomicos +9 more
core +3 more sources