Natural environment

Natural environment

Related to any physical feature of the earth's natural environment.

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Natural environment > Earthquake

depth of focus

Natural environment; Earthquake

In seismology, the depth of focus refers to the depth at which an earthquake occurs. Earthquakes occurring at a depth of less than 70 km are classified as 'shallow-focus' ...

earthquake

Natural environment; Earthquake

An earthquake (also known as a quake, tremor or temblor) is the result of a sudden release of energy in the Earth's crust that creates seismic waves. The seismicity, seismism ...

seismic wave

Natural environment; Earthquake

Seismic waves are waves of energy that travel through the Earth's layers, and are a result of an earthquake, explosion, or a volcano that imparts low-frequency acoustic ...

seismometer

Natural environment; Earthquake

Seismometers are instruments that measure motions of the ground, including those of seismic waves generated by earthquakes, volcanic eruptions, and other seismic sources. Records ...

epicenter

Natural environment; Earthquake

The epicenter or epicentre is the point on the Earth's surface that is directly above the hypocenter or focus, the point where an earthquake or underground explosion ...

hypocenter

Natural environment; Earthquake

An earthquake's hypocenter is the position where the strain energy stored in the rock is first released, marking the point where the fault begins to rupture. This occurs ...

earthquake storms

Natural environment; Earthquake

Sometimes a series of earthquakes occur in a sort of earthquake storm, where the earthquakes strike a fault in clusters, each triggered by the shaking or stress redistribution of ...