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EarthquakesVolcanoes
Vocab
| Question | Answer |
|---|---|
| Earthquake | Earthquakes are sudden ground shaking caused by the release of accumulated energy from broken rock along faults, primarily driven by the movement of tectonic plates. Seismology studies these events, which often occur at plate boundaries, using instruments |
| Fault | A fault is a fracture or zone of fractures in the Earth's crust across which rock blocks move, ranging from millimeters to thousands of kilometers in length. Driven by tectonic plate forces, they are classified by their slip direction—normal, reverse, or |
| Seismic Wave | Seismic waves are vibrations of elastic energy that travel through the Earth’s interior or along its surface, typically generated by earthquakes, volcanic activity, or artificial explosions. These waves, which carry energy without transporting material, a |
| Focus | "Focus" in science refers to either the optical point where light rays converge, the origin point of an earthquake, or the cognitive, neural, and behavioral state of intense, distraction-free concentration. Key findings show that visual focus can trigger |
| Epicenter | The epicenter is the point on Earth's surface directly above an earthquake's hypocenter (or focus), where the rupture begins. It is usually the area experiencing the most intense shaking and damage. Scientists locate the epicenter using data from at least |
| Volcano | Volcanoes are openings in Earth’s crust allowing magma, ash, and gases to escape, forming mountains over time as material accumulates. They primarily form at tectonic plate boundaries (subduction zones, rift zones) or hotspots. Major types include shield |
| Hotspot | A hotspot is a large plume of hot mantle material rising from deep within the Earth. A line of volcanoes develops as a plate moves over a hotspot, much as a line of melted wax forms as a sheet of waxed paper is moved slowly over a burning candle. |