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Geomagnetic Effect of the Earthquakes with Mw = 7.5–7.8 in Turkey on February 6, 2023.
- Source :
- Doklady Earth Sciences; Jul2023, Vol. 511 Issue 1, p578-584, 7p
- Publication Year :
- 2023
-
Abstract
- This paper is focused on study of the geomagnetic field variation response caused by a series of earthquakes with magnitudes of M<subscript>w</subscript> = 7.5–7.8 in Turkey on February 6, 2023. The initial data include high-precision observations of the geomagnetic field with a one-second sampling rate recorded at magnetic observatories in Russia and neighboring countries from middle to high latitudes. The paper analyzes the morphology of the geomagnetic signal, its amplitude-frequency characteristics, pulses in the rate of change and delays of the geomagnetic field response to earthquakes with magnitudes M<subscript>w</subscript> = 7–8 depending on the distance to the source. The results suggest that the geomagnetic effect is detected best in the rate of change recordings, reaching anomalous amplitudes of 10 nT/s. The signal delay ranges from 221 to 592 s depending on the magnetic field component and the distance to the epicenter, which is in the range from 765 to 2650 km for the selected observatories. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 1028334X
- Volume :
- 511
- Issue :
- 1
- Database :
- Complementary Index
- Journal :
- Doklady Earth Sciences
- Publication Type :
- Academic Journal
- Accession number :
- 165111695
- Full Text :
- https://doi.org/10.1134/S1028334X23600731