DISTURBANCE OF THE GEOPHYSICAL ENVIRONMENT DURING STRONG 7.7 EARTHQUAKE IN MYANMAR ON MARCH 28, 2025

We consider the results of instrumental registration of geophysical effects in the surface atmosphere caused by a strong 7.7 earthquake in Myanmar on March 28, 2025. It is shown that the earthquake caused microbaric variations in the atmosphere, as well as variations in the magnetic and electric fields at significant distances from the seismic event source. In this case, the disturbance of the magnetic and electric fields is recorded both during the period of the main shock and during the arrival at the observation point of the infrasound signal propagating in the atmospheric waveguide. It was found that the earthquake led to an increase in the GPS positioning error at an epicentral distance of ~ 6008 km from the earthquake source. The analysis of the results of ionospheric sounding of free access obtained at the Okinawa station showed the presence of the ionospheric earthquake effect in the form of a variation in the critical frequency of the ionospheric F2 layer. These data once again demonstrate the influence of phenomena and processes occurring in the lithosphere on the atmosphere and ionosphere.