The Richter magnitude scale (also
Magnitude, Earthquake Effects, Estimated Number Each Year. 2.5 or less, Usually not felt, but can be recorded by seismograph. 900,000. 2.5 to 5.4, Often felt, ...
Whenever a major earthquake is in the news, you'll probably hear about its
Sal explains the basics of the
The Richter Magnitude Scale: Development, Details, Richter Magnitudes,
Examples, Magnitude Formula, How it works,
Richter studied many earthquakes that occurred between 1900 and 1950. The
largest had magnitude of 8.9 on the
Jun 6, 2016
There are a number of ways to measure the magnitude of an earthquake. The
first widely-used method, the
Widely used quantitative measure of the magnitude of an earthquake, devised in
1935 by American seismologist Charles F. Richter. See table.