What is an earthquake epicenter?
Quick Answer
The epicenter is the point on Earth's surface directly above where an earthquake starts underground. It is often used to describe the quake's location in news reports and scientific summaries.
The Full Story
An earthquake begins at a point underground called the focus or hypocenter. The epicenter is the surface point directly above it. Because seismic energy spreads outward from the source, areas near the epicenter often feel strong shaking first, though damage also depends on depth, distance, and local ground conditions. Scientists use data from several seismograph stations to calculate the epicenter after an earthquake occurs. The term is central to earthquake mapping and emergency response.
Key Facts
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Suggested video title for this topic:
"Epicenter vs. focus: the earthquake location people always mix up"
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