Abstract
The geodynamic mechanism is the research focus and core issue of plate motions and plate tectonics. Analyzing the time series of earthquakes may help us understand the relationship between two plate boundaries and further explore movement mechanisms. Therefore, this paper uses earthquake event data and the Granger causality test method to quantitatively analyze the interaction and energy transfer relationship of plate boundaries from the viewpoint of statistics. The paper aims to explore the relationship between the pull effect and the push effect of plate motion and to provide knowledge to explore seismic energy transfer relationships, and even to predict earthquakes: (1) The directions of the global plate motion field are opposite to the directions of Granger causality between plate boundaries of the Pacific, Nazca, African, Australian, Eurasian, and Philippine plates. (2) The slab-pull force (not limited to the subduction force of the ocean plates) provides a main driving force for plate motions in the Pacific plate, Nazca plate, African plate, Australian plate, Eurasian plate, and Philippine sea plate. (3) The causality relationship and optimal lag length of energy release between plate boundaries may provide another view to forecasting earthquakes.
Highlights
IntroductionThe composition of the Earth’s interior, which is the structure of each sphere inside the Earth, can be inferred through the observation of seismic waves
The Earth is a complex whole, and its interior is composed of multiple layers
The second-generation model [3,4], the third-generation model [5], and the fourth-generation model [6] were successively proposed. These lithospheric plates vary in size, and the relative motion between them is too slow to notice by humans
Summary
The composition of the Earth’s interior, which is the structure of each sphere inside the Earth, can be inferred through the observation of seismic waves. This structure includes the crust, the upper mantle, the transition layer, the lower mantle, the D” layer, the outer core, and the inner core [1]. The second-generation model [3,4], the third-generation model [5], and the fourth-generation model [6] were successively proposed These lithospheric plates vary in size, and the relative motion between them is too slow to notice by humans. It is of great significance to study the occurrences of earthquakes and eruptions of volcanoes mechanically, and to predict these events to minimize the loss of life and property, ensuring the sustainable development of human society
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