Conclusion The results show that the designed spectral acceleration is still able to cover the
spectral acceleration resulting from the wave propagation of the controlling earthquake …

This paper reviews several effective ULF frequency ranges of geomagnetic field used by
prior studies to detect earthquake precursor. Since the chosen frequency ranges are rather …

Electromagnetic emissions from earthquakes are known as precursors and are of
considerable importance for the purpose of early alarms. The propagation of low-frequency …

A numerical model has been elaborated to calculate ULF electromagnetic fields in the
ground-atmosphere–ionosphere system created by an underground horizontal current …

This work considers the effectiveness of earthquakes (EQs) radio precursors mainly in the
Extremely Low Frequency (ELF) range and below, and carries out an analysis based on a …

Tepung porang merupakan salah satu produk antara dari umbi porang yang sangat
potensial untuk dimanfaatkan dalam bidang pangan. Tepung porang dapat dimanfaatkan …

We analyzed the seismic signals of the Mount Rinjani station to identify possible seismic
anomalies before a series of major earthquakes on Lombok Island in 2018. We observe …

A study on ultra-low frequency (ULF) geomagnetic anomaly was carried out for the M5. 9
Banten earthquaNe on January 23, 2018. The time-domain of geomagnetic data on X, Y …

In order to obtain earthquakes precursors in Indonesian regions, some researchers have
used data from Indonesian geomagnetic observatories and surroundings. Comparisons of …

In this study, we performed research on electromagnetic anomalies related to earthquakes
as early signs (precursors) that occurred in Fukushima, Japan on February 13th, 2021. The …