Earthquake precursors using the earth's magnetic data by analyzing Ultra Low Frequency (ULF) emission anomalies is one of the earthquake disaster mitigation efforts. This study uses 11 earthquake data in the Province of West Sumatra and its surroundings in 2021 with coordinates (3.50ºLS-1.20ºN and 98.10º-102.10ºE). This study was conducted to determine Ultra Low Frequency (ULF) emission ano…