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Bookmark or Share- Magnitude 7 MetalsOne of the last aluminum smelters in the U.S. Employ over 400 people; Largest single consumer of electricity in Missouri; One of Missouri's largest natural gas users
- Richter magnitude scale - WikipediaThe Richter scale – also called the Richter magnitude scale or Richter's magnitude scale – is a measure of the strength of earthquakes, developed by Charles F. Richter and presented in his landmark 1935 paper, where he called it the "magnitude scale". This was later revised and renamed the local magnitude scale, denoted as ML or M L .. Because of various shortcomings of the M L scale, most ...
- Earthquakes Magnitude Scale and ClassesMagnitude: 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, but ...
- Alaska earthquake: Magnitude 7.8 quake strikes off Alaskan ...An earthquake with a magnitude of 7.8 struck off southern Alaska's coast late Tuesday, shaking the Alaska Peninsula and briefly sparking tsunami concerns before officials said no destructive waves ...
- What is stellar magnitude? | Astronomy Essentials | EarthSkyThe magnitude scale is much like golf in that the lower number means a greater brightness on the magnitude scale and a better score in golf. Loosely speaking, the 21 stars that are brighter than ...
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