Number of earthquakes in the United States by magnitude 2012

This statistic shows the number of earthquakes in the United States in 2012, by magnitude. In 2012, 1,236 earthquakes with a Richter magnitude scale between 3.0 and 3.9 were recorded in the United States.

Number of earthquakes in the United States in 2012, by magnitude

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Source

Release date

September 2013

Region

United States

Survey time period

2012

Supplementary notes


Number of earthquakes in the U.S. in 2012 in total: 3,836.
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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