OVERVIEW ON REMOTELY SENSED ERTHQUAKE PRECURSORS

  • H. Valizadeh University Putra Malaysia (UPM), Serdang, Malaysia
  • F. H. Azad University Putra Malaysia (UPM), Serdang, Malaysia
  • S. Valizadeh Fakkeh Building and Road Construction Company, Tehran, Iran

Abstract

Earthquakes are the most destructive phenomena among all the natural hazards. Occurring often without any warning, they are the most feared and unpredictable natural phenomena. Earthquake prediction has two potential objectives: (a) phenomena that provide information about the future earthquake hazardĀ  useful to those who live in earthquake-prone regions and (b) phenomena causally related to the physical processes governing failure on a fault that will improve our understanding of those processes. Some of the earthquake precursors can be detectable from space and some are better to be monitored via ground- based systems. Surface deformation data are provided by GPS and SAR imaging, land surface temperature changes by ASTER, Landsat TM and ETM, different types of cloud studies using MODIS and Seawifs data, electromagnetic and ionosphere anomalies by ground passive stations and radon gas emissions in the faults areas by solid on the ground detectors. Any phenomena that happen to occur before an earthquake can be called precursors whether or not they have a causal relation to the earthquake, therefore, observations of these signals and studies for their correlation with the earthquakes are only worthwhile if issued scientifically. Efforts towards the data gathering of earthquakes occurring with and without preceded precursors are extremely important. But, jumping directly to the conclusion from these very early stage studies that accurate earthquake early warning is within reach within a decade is not scientific. In this paper we tried to collect about complete and helpful information of earthquake precursors which have been studied until now.

Published
2011-08-01
How to Cite
VALIZADEH, H.; AZAD, F. H.; VALIZADEH, S.. OVERVIEW ON REMOTELY SENSED ERTHQUAKE PRECURSORS. EACEF - International Conference of Civil Engineering, [S.l.], v. 1, p. 022, aug. 2011. Available at: <http://proceeding.eacef.com/ojs/index.php/EACEF/article/view/321>. Date accessed: 19 may 2024.
Section
Group of Geotechnical Engineering