Joules is the energy released by a small reference earthquake. The energy, can be obtained directly from the Gutenberg-Richter magnitude-energy relation, here expressed in units of Joules: log E = 1.5 R + 4.8 or equivalently: E = 101.5 R + 4.8. Joules; we can convert these units to equivalent tons of TNT.
http://convertalot.com/earthquake_power__calculator.html
On the Richter scale, the magnitude of an earthquake is related to the released energy E in joules (J) by the equation. log10 E = 4.4 + 1.5M. The 1906 San Francisco earthquake registered 8.2 on the Richter scale. Using the above equation, the released energy was E = 5.011872336x1016 J.
http://www.math.wichita.edu/~richardson/earthquake.html
The Richter Scale. On the Richter scale, the magnitude of an earthquake is related to the released energy E in joules (J) by the equation. log10 E = 4.4 + 1.5M. The 1906 San Francisco earthquake registered 8.2 on the Richter scale.
http://www.math.wichita.edu/~richardson/earthquake.html
A magnitude 8.5 earthquake (such as the 1964 Good Friday earthquake in Alaska) releases about 1x10 18 joules of energy. The atomic bomb exploded over Hiroshima released about 1.5x10 13 joules of energy.
http://serc.carleton.edu/quantskills/activities/botec_earthquake.html
Question. A magnitude 8.5 earthquake (such as the 1964 Good Friday earthquake in Alaska) releases about 1x10 18 joules of energy. The atomic bomb exploded over Hiroshima released about 1.5x10 13 joules of energy.
http://serc.carleton.edu/quantskills/activities/botec_earthquake.html
On the Richter scale, the magnitude of an earthquake is related to the released energy E in joules (J) by the equation. log10 E = 4.4 + 1.5M.
http://www.math.wichita.edu/~richardson/earthquake.html
The greatest recorded release of energy by an earthquake was in 1960, when a magnitude 9.5 earthquake occurred in Chile. This is the largest earthquake on record, releasing 1.12 x 10^19 joules, which is the equivalent of 2.7 billion tons of TNT.
http://matlabgeeks.com/miscellaneous/energy-release-recent-earthquakes/
It is a measure of the amplitude of the seismic waves produced by an earthquake. An increase of one unit on the Richter scale, say from magnitude 2.4 to 3.4, corresponds to a 10-fold increase in the amplitude of the seismic waves that shake the ground.
http://convertalot.com/earthquake_power__calculator.html
An increase of one unit on the Richter scale, say from magnitude 2.4 to 3.4, corresponds to a 10-fold increase in the amplitude of the seismic waves that shake the ground. The Richter magnitude is also related to the energy radiated from the earthquake source as seismic waves.
http://convertalot.com/earthquake_power__calculator.html
This is the largest earthquake on record, releasing 1.12 x 10^19 joules, which is the equivalent of 2.7 billion tons of TNT. In comparison, the Great East Japan earthquake of 2011, a magnitude 9.0 earthquake, released 2 x 10^18 joules, or the equivalent of 477 million tons of TNT.
http://matlabgeeks.com/miscellaneous/energy-release-recent-earthquakes/
how many joules in a magnitude 8 earthquake
There are 1 by 10 raised to 18 joules of energy in a magnitude of 8 earthquake.