Richter+Scale


 * ~ Richter magnitudes ||~ Description ||~ Earthquake effects ||~ Frequency of occurrence ||
 * 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 ||^  || 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 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 ||^  || Devastating in areas several thousand miles across. || 1 per 20 years ||
 * 10.0+ || Epic || Never recorded; see below for equivalent seismic energy yield. || Extremely rare (Unknown ||