Active fault facts for kids
Woodcut of the New Madrid Earthquake, that happened in 1811. It is the biggest earthquake in the history of the US, east of the Rocky Mountains. It is classifired as level IX (heavy shaking) on the Mercalli intensity scale. It probably had a magnitude of between 7.5 and 7.9 on the Richter scale.
An active fault is a fault that is likely to become the source of another earthquake sometime in the future. Faults are active if there has been movement seen or evidence of seismic activity during the last 10,000 years. Active faulting is considered to be a geologic hazard. It is related to earthquakes as a cause.
Images for kids
See also
In Spanish: Falla activa para niños
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Active fault Facts for Kids. Kiddle Encyclopedia.