Why 3D spatial visualization is critical for understanding deep-focus earthquakes (300–700 km depth) occurring inside the Earth's mantle.
1. The Limitation of 2D Seismic Maps
2D flat maps treat a 10km shallow quake and a 600km deep-focus quake as identical dots, hiding crucial depth hazard dimensions.
2. Tracing the Subducting Pacific Slab in 3D
Plotting deep hypocenters on QuakeViewer3D reveals the exact geometry of the Pacific oceanic plate diving 700 km into the mantle at a 45-degree angle.
3. Explaining Anomalous Seismic Intensity
Visualizing how seismic waves travel efficiently through rigid cold slabs, causing strong shaking thousands of kilometers away from the epicenter.