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Natural environment
Related to any physical feature of the earth's natural environment.
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Natural environment > Earthquake 
Fukushima Daiichi nuclear disaster
Natural environment; Earthquake
The Fukushima Daiichi nuclear disaster is a series of equipment failures, nuclear meltdowns, and releases of radioactive materials at the Fukushima I Nuclear Power Plant, ...
2012 Indian Ocean earthquake
Natural environment; Earthquake
On 11 April 2012 an undersea earthquake struck near the Indonesian province of Aceh measuring at a magnitude of 8.6. There were initial fears that it would cause a subsequent ...
P wave
Natural environment; Earthquake
A seismic wave that involves particle motion in the direction of propagation.
Rayleigh wave
Natural environment; Earthquake
A seismic surface wave involving elliptical motion in a vertical plane oriented in the direction of propagation of the wave.
Richter scale
Natural environment; Earthquake
A scale ranging from 1 to 10 used to show the size of an earthquake.
Ring of Fire
Natural environment; Earthquake
The area around the pacific basin where a lot of seismic activity occurs, including the western coast of north and south america and east asian islands like japan.
S wave
Natural environment; Earthquake
A seismic body wave involving shear motion transverse to the direction of propagation of the wave.
Sub-categories
- Air (43)
- Atmosphere (59)
- Climate (1147)
- Climate change (10457)
- Coral reefs (23903)
- Deserts (738)
- Earthquake (7143)
- Flood (34)
- Forests (37)
- Grassland (35)
- Land mass (144)
- Landslide (66)
- Mountains (203)
- Plateau (39)
- Speleology (1857)
- Volcano (5852)
- Water (18527)