ANALISIS PERUBAHAN NILAI MEDAN MAGNET BUMI TERHADAP GEMPABUMI LAMPUNG TANGGAL 7 (Mw 5,1) DAN 31 (ML 5,3) MARET 2014; ANALYSIS OF GEOMAGNETIC FIELD VARIATIONS ASSOCIATED WITH LAMPUNG EARTHQUAKE ON 7 (Mw 5.1) AND 31 (ML 5.3) MARCH 2014

MUSTIKARINI, DYAH DHANI, Imam Suyanto

2016 | Skripsi | FMIPA

Many scientists have focused their research on the ULF geomagnetic field to find possible anomalous signals caused by the seismic activity. Thereafter, many papers have reported ULF geomagnetic field polarization ratio increases which have been claimed to be related to the occurrence of moderate and strong earthquake. On 7 and 31 March 2014, Lampung earthquake (magnitude 5.1 and 5.3) hit near the LWA station. Geomagnetic data from LWA and SCN station have been analyzed to detect any signature related to this moderate earthquake. The relation between earthquake magnitude and epicenter distance to geomagnetic station consistently indicates a relationship which satisfies 0.025 R

Kata Kunci : ULF geomagnetic field, polarization ratio welch, power spectrum density, Lampung earthquake