Mathematical Modeling of the Process of Disturbed Geomagnetic Field Formation as a Possible Earthquake Precursor

1999 ◽  
Vol 31 (10) ◽  
pp. 89-94
Author(s):  
Yuriy P. Ladikov-Roev ◽  
Victor I. Panchuk ◽  
Georgiy A. Chechko
Keyword(s):  
Mathematical Modeling ◽  
Geomagnetic Field ◽  
Earthquake Precursor ◽  
Field Formation

Could the Norilsk Region Dolerite Sills Have Recorded Geomagnetic Field Reversals? Results of Mathematical Modeling

2019 ◽  
Vol 55 (6) ◽  
pp. 833-840 ◽  
Author(s):  
D. V. Metelkin ◽  
A. V. Lavrenchuk ◽  
N. E. Mikhaltsov
Keyword(s):  
Mathematical Modeling ◽  
Geomagnetic Field

scholarly journals A statistical analysis of the relationship between Pc4 and Pc5 ULF waves, solar winds and geomagnetic storms for predicting earthquake precursor signatures in low latitude regions

2021 ◽  
Vol 880 (1) ◽  
pp. 012010
Author(s):  
S N A Syed Zafar ◽  
Roslan Umar ◽  
N H Sabri ◽  
M H Jusoh ◽  
A Yoshikawa ◽  
...  
Keyword(s):  
Solar Wind ◽  
Geomagnetic Field ◽  
Geomagnetic Storms ◽  
Earthquake Precursor ◽  
Ulf Waves ◽  
Low Latitude ◽  
Geomagnetic Indices ◽  
Solar Winds ◽  
Solar Wind Parameters ◽  
The Relationship

Abstract Short-term earthquake forecasting is impossible due to the seismometer’s limited sensitivity in detecting the generation of micro-fractures prior to an earthquake. Therefore, there is a strong desire for a non-seismological approach, and one of the most established methods is geomagnetic disturbance observation. Previous research shows that disturbances in the ground geomagnetic field serves as a potential precursor for earthquake studies. It was discovered that electromagnetic waves (EM) in the Ultra-Low Frequency (ULF) range are a promising tool for studying the seismomagnetic effect of earthquake precursors. This study used a multiple regression approach to analyse the preliminary study on the relationship between Pc4 (6.7-22 mHz) and Pc5 (1.7-6.7 mHz) ULF magnetic pulsations, solar wind parameters and geomagnetic indices for predicting earthquake precursor signatures in low latitude regions. The ground geomagnetic field was collected from Davao station (7.00° N, 125.40° E), in the Philippines, which experiences nearby earthquake events (Magnitude <5.0, depth <100 km and epicentre distance from magnetometer station <100 km). The Pc5 ULF waves show the highest variance with four solar wind parameters, namely SWS, SWP, IMF-Bz, SIE and geomagnetic indices (SYM/H) prior to an earthquake event based on the regression model value of R2 = 0.1510. Furthermore, the IMF-Bz, SWS, SWP, SWE, and SYM/H were found to be significantly correlated with Pc5 ULF geomagnetic pulsation. This Pc5 ULF magnetic pulsation behaviour in solar winds and geomagnetic storms establishes the possibility of using Pc5 to predict earthquakes.

The anomalous entry of low-rigidity solar cosmic rays into the geomagnetic field

1963 ◽  
Vol 68 (19) ◽  
pp. 5327 ◽  
Author(s):  
S.-I. Akasofu ◽  
W. C. Lin ◽  
J. A. Van Allen
Keyword(s):  
Cosmic Rays ◽  
Geomagnetic Field ◽  
Solar Cosmic Rays

Cerebral Blood Circulation in Premature Infants by Means of Mathematical Modeling

2015 ◽  
Vol 46 (S 01) ◽  
Author(s):  
R. Lampe ◽  
N. Botkin ◽  
V. Turova ◽  
T. Blumenstein ◽  
A. Alves-Pinto
Keyword(s):  
Mathematical Modeling ◽  
Premature Infants ◽  
Blood Circulation ◽  
Cerebral Blood Circulation

Mathematical Modeling and Application of Aperture Type of Collimated Beam Apparatus for Fluence Measurement and Radiometer Calibration

2020 ◽  
Vol 146 (12) ◽  
pp. 04020129
Author(s):  
Lianfeng Zhang ◽  
Yeye Song ◽  
Jinsong Zhang ◽  
Jianpeng Zhou ◽  
Zhangfa Tong
Keyword(s):  
Mathematical Modeling ◽  
Radiometer Calibration ◽  
Collimated Beam
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