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en.wikipedia.org/wiki/Richter_magnitude_scale

The Richter magnitude scale assigns a magnitude number to quantify the size of an earthquake ... As energy release is generally proportional to the shaking amplitude raised to the 32 ... Richter established a magnitude 0 event to be an earthquake that would .... scale gives somewhat different values than the other scales.

earthquake.usgs.gov/learn/topics/calculator.php

USGS Earthquake Hazards Program, responsible for monitoring, reporting, and ... How much bigger is a magnitude 8.7 earthquake than a magnitude 5.8 ... of the magnitude of an earthquake versus the strength, or energy release, of an ... The difference between these two magnitudes is. ... times stronger (energy release).

earthquake.usgs.gov/learn/topics/mag_vs_int.php

USGS Earthquake Hazards Program, responsible for monitoring, reporting, and researching ... Magnitude and Intensity measure different characteristics of earthquakes. Magnitude measures the energy released at the source of the earthquake. ... II. Felt only by a few persons at rest, especially on upper floors of buildings. III.

earthquake.usgs.gov/learn/topics/measure.php

Earthquakes with magnitude of about 2.0 or less are usually called ... shocks annually - are strong enough to be recorded by sensitive seismographs all over the world. ... scale corresponds to the release of about 31 times more energy than the amount ... for which ML and Mblg are the only magnitudes that can be measured.

www.sms-tsunami-warning.com/pages/richter-scale

In other words, a two is 10 times more intense than a one and a three is 100 times ... That is, the wave amplitude in a level 6 earthquake is 10 times greater than in a ... it is correct to say that for each increase in 1 in the Richter magnitude there is a ... magnitude scale corresponds to the release of about 31 times more energy ...

www.answers.com/Q/A_magnitude_of_a_4.0_earthquake_releases_just_over_times_more_energy_than_a_2.0_magnitude_earthquake

A magnitude-4.0 earthquake releases just over times more energy than a 2.0 magnitude earthquake? 1,000. Edit. Share to: ...

www.latimes.com/nation/la-fg-mexico-earthquake-magnitude-20170921-htmlstory.html

Sep 22, 2017 ... 0:00. Progress: 0%. Stream TypeLIVE. Remaining Time -0:00. Share ... A magnitude 8 releases 1,000 times more energy than a magnitude 6, but it releases that energy over a larger area and for a longer time, Jones said. .... Intensity 2: Weak — Felt only by a few persons at rest, especially on upper floors of ...

www.e-education.psu.edu/earth520/content/l7_p4.html

When an earthquake happens, the main quantity of interest is its magnitude. ... about the Richter scale is that for most earthquakes of interest, the magnitudes end up ... Seismic moment (M0) is simply the product of the average amount of slip that ... energy released by an earthquake because you have to integrate over time ...

www.sciencemag.org/news/2011/03/comparing-earthquakes-explained

Mar 15, 2011 ... How can one compare the magnitude-9.0 earthquake in Japan with the ... two sorts of figures when comparing earthquakes: magnitude and energy. ... 4, than the difference in magnitudes is 2, so the stronger earthquake shakes 10^2 ... is 10^2.7, or just over 500 times as big—a figure you've probably seen.