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Old 27-02-2008, 12:46 AM #18
Scarlett. Scarlett. is offline
Senior Moment
 
Join Date: Apr 2007
Posts: 40,662

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Scarlett. Scarlett. is offline
Senior Moment
 
Join Date: Apr 2007
Posts: 40,662

Favourites (more):
BB2023: Henry
BB7: Nikki


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Here is the ricketer scale
We got a 4.7


Less than 2.0 Micro Microearthquakes, not felt. About 8,000 per day

2.0-2.9 Minor Generally not felt, but recorded. About 1,000 per day

3.0-3.9 Minor Often felt, but rarely causes damage. 49,000 per year (est.)

4.0-4.9 Light Noticeable shaking of indoor items, rattling noises. Significant damage unlikely. 6,200 per year (est.)

5.0-5.9 Moderate Can cause major damage to poorly constructed buildings over small regions. At most slight damage to well-designed buildings. 800 per year


6.0-6.9 Strong Can be destructive in areas up to about 100 miles across in populated areas. 120 per year

7.0-7.9 Major Can cause serious damage over larger areas. 18 per year

8.0-8.9 Great Can cause serious damage in areas several hundred miles across. 1 per year

9.0-9.9 Great Devastating in areas several thousand miles across. 1 per 20 years

10.0+ Great Never recorded; see below for equivalent seismic energy yield. Extremely rare (Unknown)
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