Preseismic ULF effectand possible interpretation

• Published in: Annals of Geophysics
• Main Authors: Molchanov, O. A., Yu. Schekotov, A., Fedorov, E., Belyaev, G. G., Solovieva, M. S., Hayakawa, M.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Istituto Nazionale di Geofisica e Vulcanologia, INGV 2004
• Subjects: Ultra-Low Frequency emission; seismicity; Alfven waves; 04.02.04. Magnetic and electrical methods; Pedersen; Kamchatka
• Online Access: https://www.annalsofgeophysics.eu/index.php/annals/article/view/3265; https://doi.org/10.4401/ag-3265

We present the results of ULF magnetic field observation at Karimshino station (Kamchatka, Russia). Using a case study we discovered an effect of suppression of ULF intensity about 2-6 days before rather strong and isolated seismic shocks (magnitude M = 4.6-6.6). It is revealed for nighttime and the...