WEBVTT

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An earthquake is a sudden shaking of the ground caused by the movement of tectonic plates

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beneath the Earth's surface.

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In this section, we'll dive into key terms related to earthquakes that help us understand

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how they occur and where their effects are felt.

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We'll explore what faults, focus, and epicenters are and how they contribute to the phenomena

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of earthquakes.

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A fault is a fracture or zone of weakness in the Earth's crust where tectonic plates

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move past each other, causing earthquakes.

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Focus The focus, or hypocenter, is the actual location within the Earth where the earthquake

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originates, usually along a fault line where the stress between tectonic plates is released.

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Seismic waves are these energy waves that propagate through the Earth's crust and interior during

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an earthquake, transmitting the energy released by plate movements.

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epicenter The epicenter is the point on the Earth's surface directly

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above an earthquake's focus.

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Effects of earthquake, the primary effects of earthquakes are ground shaking and surface

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rupture, and the secondary effects of earthquakes are tsunamis, landslides, and fires.

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Understanding earthquakes helps us prepare and respond to these natural events.

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By learning about their causes and effects, we can better protect ourselves and our communities.