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Please stop using the Richter Scale. It is old, outdated, inappropriate and even misleading. You would think that an increase of M3,0,for anything over about M 7.0.
https://youtu.be/sTvtKUb-RsY [1:52 minutes]Please stop using the Richter Scale. It is old, outdated, inappropriate and even misleading. You would think that an increase of M3,0,for anything over about M 7.0.
by: The US Government's Pacific Tsunami Warning Center
PacificTWC
Published on Dec 29, 2016
Published on Dec 29, 2016
Tsunami
warning center scientists usually measure an earthquake's "size"
with the moment magnitude scale rather than the older but more famous
Richter magnitude scale. The moment magnitude scale is better suited
for measuring the "sizes" of very large earthquakes and its
values are proportional to an earthquake's total energy release,
making this measurement more useful for tsunami forecasting.
Moment
magnitude numbers scale such that that energy release increases by a
factor of about 32 for each whole magnitude number. For example,
magnitude 6 releases about 32 times as much energy as magnitude 5,
magnitude 7 about 32 times as much as magnitude 6, and so on. This
animation graphically compares the relative "sizes" of some
20th and 21st century earthquakes by their moment magnitudes. Each
circle's area represents its relative energy release, and its label
lists its moment magnitude, its location, and the year it happened.
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