Environment
What Are Seismic Waves?
Seismic waves are vibrations that carry energy away from an earthquake, explosion or other sudden source. Their speed and path depend on the elastic properties and densi…
earthquakes volcanoes
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Articles about earthquakes volcanoes
4 published items.
Environment
What Is Plate Tectonics?
Plate tectonics is the framework that explains the large-scale motion of Earth's rigid outer shell. The lithosphere is broken into plates that move over the weaker asthe…
Environment
How Do Volcanoes Erupt?
Volcanoes erupt when magma and gases move from depth toward Earth's surface and pressure overcomes the strength of surrounding rock. The style of eruption depends on mag…
Environment
How Do Earthquakes Happen?
Earthquakes happen when stress accumulated in rocks is released suddenly as a fault slips. Tectonic plates move continuously, but friction can lock parts of their bounda…