GoKawiilAI Analysis of 2 Million Earthquakes Reveals New Deep-Earth Structures
Researchers at the Chinese Academy of Sciences used a machine learning algorithm to sift through seismic data from over two million earthquakes recorded between 1990 and 2024, uncovering nearly 175,000 so-called PKP precursor signals. These faint seismic echoes, arriving before the main earthquake waves, point to small irregular structures located roughly 1,800 miles underground near the boundary between Earth's solid mantle and liquid outer core.