From the University of Nevada, Reno's website:
Earthquake Severity
Richter Earthquake
Magnitudes Effects
Less than 3.5 Generally not felt, but recorded.
3.5-5.4 Often felt, but rarely causes damage.
Under 6.0 At most slight damage to well-designed buildings.
Can cause major damage to poorly constructed buildings
over small regions.
6.1-6.9 Can be destructive in areas up to about 100 kilometers
across where people live.
7.0-7.9 Major earthquake. Can cause serious damage over larger areas.
8 or greater Great earthquake. Can cause serious damage in areas several
hundred kilometers across.
There have been 25 "microquakes" since midnight.
A 3.0 hit Reno about an hour ago.
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