Question: User: Visual Prompt for AI Video Generator: Prompt: A cutaway geological 3D animation of an earthquake originating underground[cite: 15]. Two types of seismic waves race towards a surface monitoring station labeled "Helwan Observatory"[cite: 15]. Fast blue longitudinal P-waves arrive first, followed by slower red transverse S-waves[cite: 15]. An animated time-gap bracket highlights the "Warning Period" between their arrivals[cite: 15]. Educational style, clear labels[cite: 15]. English Voiceover & Text: Voiceover: "During an earthquake, primary P-waves are longitudinal and travel faster, while secondary S-waves are transverse and slower[cite: 15]. Because P-waves arrive at monitoring stations first, they create a vital warning period before the slower S-waves strike[cite: 15]!"