Correlations between earthquake properties and characteristics of possible ULF geomagnetic precursor over multiple earthquakes

KA Yusof, M Abdullah, NSA Hamid, S Ahadi… - Universe, 2021 - mdpi.com
In this study, we improved and adapted existing signal processing methods on vast
geomagnetic field data to investigate the correlations between various earthquake …

Assessment of signal processing methods for geomagnetic precursor of the 2012 M6. 9 Visayas, Philippines earthquake

KA Yusof, NS Abdul Hamid, M Abdullah, S Ahadi… - Acta Geophysica, 2019 - Springer
This study assessed two signal processing methods on geomagnetic data to detect
precursory signals appearing before the M6. 9 Visayas, Philippines earthquake on 6 …

Statistical analysis of pre‐earthquake electromagnetic Anomalies in the ULF Range

S Warden, L MacLean, J Lemon… - Journal of Geophysical …, 2020 - Wiley Online Library
Assessing the statistical significance of electromagnetic anomalies in the ultralow frequency
(ULF) range observed prior to earthquakes is a necessary step toward determining whether …

Appraisal of contemporaneous application of polarization ratio and fractal analysis for studying possible seismo-electromagnetic emissions during an intense phase of …

C Dey, S Baruah, G Rawat, T Chetia, S Baruah… - Physics of the Earth and …, 2021 - Elsevier
Mechanical deformations from within the earthquake preparation zones are believed to
cause seismo-electromagnetic (SEM) emission in ultra-low frequency (ULF) band, ie …

[PDF][PDF] Normalized polarization ratio analysis for ULF precursor detection of the 2009 M7. 6 Sumatra and 2015 M6. 8 Honshu earthquakes

KA Yusof, M Abdullah, NSA Hamid, S Ahadi… - J …, 2020 - academia.edu
The utilization of geomagnetic field data especially in the ultra-low frequency range has
been shown by prior studies to have the potential to detect earthquake precursors. The most …

The ULF geomagnetic anomalous signal associated with Nias earthquake M5. 3 North Sumatra Indonesia on September 6, 2018

CN Dewi, F Febriani, T Anggono… - Journal of Physics …, 2020 - iopscience.iop.org
A study of ultra-low-frequency (ULF) geomagnetic signals has been carried out prior to the
onset of Nias earthquake M5. 3 that occurred at 07: 13: 49 LT (Local Time) on September 6 …

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

SNAS Zafar, R Umar, NH Sabri… - … Series: Earth and …, 2021 - iopscience.iop.org
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 …

Assessment of ultra-low frequency (ULF) geomagnetic phenomena associated with earthquakes in the western part of Java Island, Indonesia during 2020

CN Dewi, F Febriani, T Anggono, S Syuhada… - Rudarsko-geološko …, 2024 - hrcak.srce.hr
Ultra-low frequency (ULF) geomagnetic analysis is a robust method for earthquake (EQ)
forecasting. We conducted a simultaneous study of EQ precursors around the western part …

Anomalous geomagnetic activities before the Karangasem-Bali, Indonesia earthquakes on December 13, 2022

CN Dewi, F Febriani, T Anggono… - … Series: Earth and …, 2024 - iopscience.iop.org
A series of earthquakes occurred on Bali Island, Indonesia, on December 13, 2022. The
United States Geological Survey (USGS) recorded four shallow earthquakes around …

Investigation of the ultra low frequency (ULF) geomagnetic anomalies prior to the Lebak, Banten earthquake (M= 6.1; January 23, 2018)

S Syuhada, P AD, D CN, H AS - AIP Conference Proceedings, 2020 - pubs.aip.org
To investigate the ultra-low frequency (ULF) geomagnetic anomalies related to the Lebak
earthquake, we have analyzed the three components geomagnetic data observed from …