We present the confirmed validity of the significant explanatory aspect of the thermohydrogravidynamic theory (Simonenko, 2007, 2009, 2012-2020) concerning the evaluated (on April 7, 2021, especially for the presentation on the 11th International Conference on Geology and Geophysics) maximal magnitude 7.725 of the possible most strongest earthquake during the considered (Simonenko, 2020) intensification of the global natural processes of the Earth from December 7, 2019 to April 18, 2020 AD. To obtain the satisfactory explanation of the maximal magnitude M = 7.7 (according to the U.S. Geological Survey) of the strongest earthquake occurred on January 28, 2020 AD (123 km NNW of Lucea, Jamaica) near the calculated (Simonenko, 2020) mean date (February 5, 2020 AD) of the probable most strongest earthquake during the considered (Simonenko, 2020) range from December 7, 2019 to April 18, 2020 AD, we have analyzed the strongest earthquakes of the Earth occurred near the calculated local maximal combined (planetary and solar) integral energy gravitational influences on the internal rigid core of the Earth.