Results 21 to 30 of about 23,012 (224)

Thermal Anomalies Detection Using Comparative Method for Small Earthquake

open access: yesMATEC Web of Conferences, 2018
Thermal anomaly is one of the earthquake precursor in the earthquake preparatory phase. Remote sensing in thermal region has been employed based on the concept of stress accumulation in the active plate tectonics region, which may be transformed as ...
Wongpornchai Pisanu, Suwanprasit Chanida
doaj   +1 more source

Diurnal and semidiurnal cyclicity of Radon (222Rn) in groundwater, Giardino Spring, Central Apennines, Italy [PDF]

open access: yes, 2018
Understanding natural variations of Rn (222Rn) concentrations is the fundamental prerequisite of using this radioactive gas as a tracer, or even precursor, of natural processes, including earthquakes. In this work, Rn concentrations in groundwater were
Barberio, MARINO DOMENICO   +8 more
core   +2 more sources

Radon as Earthquake Precursor [PDF]

open access: yes, 2012
Earthquake predictions are based mainly on the observation of precursory phenomena. However, the physical mechanism of earthquakes and precursors is at present poorly understood, because the factors and conditions governing them are so complicated. Methods of prediction based merely on precursory phenomena are therefore purely empirical and involve ...
IMME', Giuseppina, MORELLI D.
openaire   +3 more sources

Short-term electromagnetic precursors of earthquakes

open access: yesГеодинамика и тектонофизика, 2019
In the study of the relationship between electromagnetic and seismotectonic processes, we analyzed the data of three observatories located at large distances, considering both latitudes and longitudes, and detected electromagnetic impulses in the ...
B. V. Dovbnya   +2 more
doaj   +1 more source

ANALISIS ANOMALI SINYAL ULTRA LOW FREQUENCY BERDASARKAN DATA PENGUKURAN GEOMAGNETIK SEBAGAI INDIKATOR PREKURSOR GEMPABUMI WILAYAH LAMPUNG TAHUN 2016

open access: yesJGE, 2020
Regional research had been done to analysis anomalies signal of ultra low frequency based on measurement data as an indicator of the geomagnetic earthquake precursor of lampung in 2016. To achieve purpose of the study conducted by the following steps: (i)
Ulfa Wahyuningsih   +2 more
doaj   +1 more source

Classes of low-frequency earthquakes based on inter-time distribution reveal a precursor event for the 2011 Great Tohoku Earthquake [PDF]

open access: yes, 2018
Recently, slow earthquakes (slow EQ) have received much attention relative to understanding the mechanisms underlying large earthquakes and to detecting their precursors. Low-frequency earthquakes (LFE) are a specific type of slow EQ.
Shimada, Hirohiko, Tokuda, Tomoki
core   +3 more sources

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]

open access: yes, 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

On the puzzling feature of the silence of precursory electromagnetic emissions [PDF]

open access: yes, 2013
It has been suggested that fracture-induced MHz-kHz electromagnetic (EM) emissions, which emerge from a few days up to a few hours before the main seismic shock occurrence permit a real-time monitoring of the damage process during the last stages of ...
Chelidze, T.   +2 more
core   +2 more sources

An earthquake precursor mobile network

open access: yesEarthquake Science, 2021
It is known that the VLF/LF radiation existing prior to large earthquakes is recorded in several seismically active countries of the world. The networks of this radiation consist of stationary transmitters and receivers. However, there are cases of large earthquakes, when existing networks cannot detect relevant EM radiation.
Kachakhidze, Manana   +3 more
openaire   +2 more sources

Investigating short-term earthquake precursors detection through monitoring of total electron content variation in ionosphere

open access: yesFrontiers in Astronomy and Space Sciences, 2023
The effectiveness and accuracy of earthquake precursors are measured by the ability of the precursors to predict the time, epicentral distance, and magnitude of the earthquake for short-term earthquake prediction.
Nur Fatin Irdina Zulhamidi   +7 more
doaj   +1 more source

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