Spatial distribution, randomness, magnitude, frequency, regularity, predictability of seismic hazard events
Geographers describe earthquakes using six key characteristics. These characteristics explain where earthquakes happen, how powerful they are, how often they strike, and how well scientists can forecast them.
Real World
The Cascadia Subduction Zone off the Pacific Northwest coast of the USA has ruptured with magnitude 9+ earthquakes roughly every 200–500 years — a pattern geologists have reconstructed from ghost forests and Japanese tsunami records, illustrating regularity and predictability in practice.
Exam Focus
Use all six characteristics as a checklist in extended answers; omitting spatial distribution or predictability is a common mark-losing error.
Essay Framework
Use PEEL to structure every paragraph. Tap each step for guidance and an example.
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