Seismo-Geothermics Analysis of Seismic Cones and Upper Mantle T-Type Tectonic Belt in China and Its Surroundings

Based on the author's self-developed Seismo-Geothermal Theory (SGT) system, this paper uses the M 4.0+ earthquake catalog of China and surrounding areas from the California Earthquake Center, USA, to determine the geographical and three-dimensional spatial distribution characteristics of earthquakes and volcanoes in the study area, the temporal progression of sub-crustal earthquakes, and the relationship between the stratified activity of Seismic Cone Tectonics (SCT) and strong intra-crustal earthquakes. It conducts detailed yet concise studies on 6 SCTs closely related to the study area, preliminarily depicting the surrounding environment of seismic activity in China, and introduces the concept of the upper mantle T-type tectonic belt, which spans the junction of the Pacific Ocean and the Eurasian continent. Operating in the mode of "T-type tectonic belt providing energy for the SCT driving layer → active layer conversion → energy storage layer accumulation → dissipation layer rupture leading to intra-crustal strong earthquakes and/or volcanic eruptions", it may become a powerful driver and source of power for seismic activity in China and surrounding areas. Sub-crustal earthquakes are an important geophysical parameter of the upper mantle that can currently be detected by human seismic instruments, and the stratified activity ε₀ values of sub-crustal earthquakes may also become a predictive indicator for strong intra-crustal earthquakes. On this basis, it may be possible to use multiple precursor indicators to explore the possibility of future moderate to strong seismic activity in the study area, contributing to mitigating disasters caused by intra-crustal strong earthquakes and volcanic eruptions.