Full text loading...
-
Anomalous geomagnetic variations associated with the Etna volcanic activity during February 2021
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, NSG2021 27th European Meeting of Environmental and Engineering Geophysics, Aug 2021, Volume 2021, p.1 - 5
Abstract
A series of paroxysmal events separated by relative calm periods at Etna volcano (37.75 N; 14.99 E) began on February 16, 2021 and continued to February 28, 2021. The magnetic effect caused by the eruption of the Etna volcano were analyzed. The data of registration of three components of the magnetic field of Mikhnevo observatory and a number of INTERMAGNET observatories, located at different distances from the volcano, were used. The result of data analysis reveals significant anomalous changes in the Earth’s magnetic field during paroxysmal Etna volcanic activity. The morphology of anomalies is similar at different distances from the volcano. In general, amplitudes of geomagnetic anomalies do not exceed tens of nT. Anomalies are most pronounced in the horizontal component of the Earth’s magnetic field.