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Natural environment
Related to any physical feature of the earth's natural environment.
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Natural environment > Earthquake 
magnitude, body-wave
Natural environment; Earthquake
A measure of the of the magnitude of an earthquake determined from P waves.
magnitude, local (ML)
Natural environment; Earthquake
A measure of the magnitude of a local earthquake originally defined by Charles Richter using the maximum amplitude recorded by horizontal-component seismographs.
normal fault
Natural environment; Earthquake
A sloping faulting on which the block above the fault has moved downward relative to the block below.
magnitude, moment
Natural environment; Earthquake
The magnitude of an earthquake determined from seismic moment.
oblique-slip fault
Natural environment; Earthquake
A fault with both strike-slip and dip-slip movement.
magnitude, surface-wave
Natural environment; Earthquake
The magnitude of an earthquake determined from surface waves.
right-lateral fault
Natural environment; Earthquake
A strike-slip fault on which displacement of the block opposite the observer is to the right.
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)