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Number of earthquakes in the United States by magnitude from 2005 to 2012

 

Number of earthquakes in the United States from 2005 to 2012*, by magnitude

Richter magnitude scale
United States; U.S. Geological Survey; 2005 to 2012 Source: US Geological Survey


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This statistic shows the number of earthquakes in the United States from year 2005 to 2012, by magnitude. In 2005, 1,475 earthquakes with a Richter magnitude scale between 3.0 and 3.9 were recorded in the United States.

Statistic Information
 
close Markets and sectors
Society , Environment
Survey
Survey time period 2005 to 2012
Object of investigation Number of earthquakes by magnitude
Region United States
Macroregion North-America only
Type Ranking
Category other
Relevance 3
Release
Published by U.S. Geological Survey
Release date July 2012
Further information * Data as of July 25, 2012.
The expression Richter magnitude scale refers to a number of ways to assign a single number to quantify the energy contained in an earthquake. In all cases, the magnitude is a base-10 logarithmic scale obtained by calculating the logarithm of the amplitude of waves measured by a seismograph. An earthquake that measures 5.0 on the Richter scale has a shaking amplitude 10 times larger and corresponds to an energy release of v1000 ˜ 31.6 times greater than one that measures 4.0.
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