Understanding Earthquake Terms and Philippine Risk Zones
When an earthquake strikes, several key components work together. The focus (or hypocenter) is where the earthquake actually starts deep underground, while the epicenter is the point directly above it on Earth's surface where shaking feels strongest.
Seismic waves carry the earthquake's energy outward from the focus, and faults are the cracks or fracture zones in rock where the movement occurs. Scientists measure magnitude (energy released) differently from intensity (how much shaking people actually feel).
Tectonic plates come in two main types: continental plates (thicker but less dense) and oceanic plates (thinner but denser). Scientists divide Earth's lithosphere based on patterns of volcanoes, earthquakes, and mountain ranges.
Local Connection: Regions III, V, VII, and BARMM are among the highest-risk earthquake and volcano zones in the Philippines - if you live there, knowing emergency procedures isn't just smart, it's essential!