Richter magnitudes Description Earthquake effects Less than - TopicsExpress



          

Richter magnitudes Description Earthquake effects 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 Very Light 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. 800 per year 6.0-6.9 Strong Can be destructive in areas up to about 160 kilometres (100 mi) 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 Extreme Devastating in areas several thousand miles across. 1 per 20 years 10.0+ Epic Never recorded. Extremely rare (Unknown)
Posted on: Tue, 15 Oct 2013 04:57:54 +0000

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