Abstract: At 14:20:56 (Beijing Time) on March 28, 2025, a moment magnitude 7.9 earthquake struck the Mandalay region in central Myanmar. In response, the Institute of Geophysics, China Earthquake Administration, initiated a rapid scientific assessment involving multidisciplinary teams. Source parameters, focal mechanism, rupture process, and seismic radiated energy were estimated. Based on the inferred source model, ground shaking intensity map and coseismic deformation field were simulated. The results indicate that the earthquake occurred along the Sagaing Fault and was characterized by predominant right-lateral strike-slip motion. Both the moment energy ratio and the slowness parameter exceed global averages, suggesting a relatively high level of energy dissipation. The estimated intensity in the epicentral region may have reached or exceeded level X (on the Modified Mercalli Intensity scale), potentially affecting an area of approximately 280, 000 km². Significant coseismic displacement was shown, with the maximum horizontal offset reaching 1.09 meters.