Global earthquakes in the 2025 first half according to the GS RAS

The paper presents a description of the Earth’s seismicity in the first half of 2025 at a magnitude level of mb (MS)≥6.0 (a total of 67 earthquakes), as well as information on 66 earthquakes felt in the territory of the Russian Federation according to the Earthquake Early Alert Service of the Geophysical Survey RAS. Information messages were published for the 12 strongest events within one or two days after their occurrence. The messages provide parameters of the main shocks, focal mechanisms, wave forms and macroseismic data. During the period under review, the strongest earthquake on the globe occurred on March 28 with MS=7.8 (Mw=7.4) in northwest Myanmar. As a result, 3791 people died, more than five thousand were injured. On the territory of Russia, the most noticeable earthquake occurred on May 29 with mb=5.9 (Mw=5.5) in the Pacific Ocean, east of the Kuril Islands. Its shaking intensity was Ii=5 in the nearest settlement Malokurilskoye (D=57 km). The seismic energy released on the globe in the first half of 2025 (SE0.5=6.76⋅1016 J) decreased slightly compared to that in the second half of 2024 (SE0.5=8.22⋅1016 J), remaining below the average semi-annual value for the period 2010–2024 (SE0.5=2.17⋅1017 J), as in most half-years during the three previous years.