Earthquake dynamics is a scientific field that focuses on studying the mechanisms and processes that control the occurrence, propagation, and impact of earthquakes. Researchers in this area investigate the physical properties of the Earth's crust and fault systems, as well as the interactions between tectonic plates that lead to seismic activity. By studying earthquake dynamics, scientists aim to improve our understanding of earthquake behavior, develop better models for earthquake forecasting and hazard assessment, and ultimately help mitigate the impacts of earthquakes on society and infrastructure. Key topics in earthquake dynamics research include seismic wave propagation, fault mechanics, stress accumulation and release, and earthquake triggering mechanisms.