The group of statistical precursors of 7.3 and 6.6 magnitude earthquakes in the region of Indonesia

Alexandr Volvach (), Lev Kogan, Larisa Volvach, Konstantin Kanonidi, Igor Bubukin and Valeria Shtenberg
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Alexandr Volvach: Radio Astronomy and Geodynamics Department of Crimean Astrophysical Observatory
Lev Kogan: Radio Astronomy and Geodynamics Department of Crimean Astrophysical Observatory
Larisa Volvach: Radio Astronomy and Geodynamics Department of Crimean Astrophysical Observatory
Konstantin Kanonidi: Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radiowave Propagation of RAS
Igor Bubukin: Radiophysical Research Institute of N.I. Lobachevsky Nizhny Novgorod State University
Valeria Shtenberg: Nizhny Novgorod State University of Architecture and Civil Engineering

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2024, vol. 120, issue 6, No 26, 5616 pages

Abstract: Abstract Based on the methodology for studying variations in the properties of small-scale probability density fluctuations when measuring the X-component of the magnetic field, short-term precursors were identified for two earthquakes with magnitudes 7.3 and 6.6 that occurred in the Indonesia region on December 14, 2021, and January 14, 2022, respectively. In both cases, the applied approach made it possible to identify an ensemble of these precursors over an interval of the order of one day to one hour before the indicated events. For the earthquakes under consideration, phenomena of simultaneous or quasi-simultaneous occurrence of groups of precursors were discovered, and time points were identified that could correspond to critical phenomena during the process of “final preparation” of the earthquake.

Keywords: Earthquake precursors; Magnetic field; Statistical functional (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1007/s11069-024-06439-x

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