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QUESTION
The 1906 San Francisco earthquake had a magnitude of 7.9 on the MMS scale. Around the same time there was an earthquake in South America with...
- The 1906 San Francisco earthquake had a magnitude of 7.9 on the MMS scale. Around the same time there was an earthquake in South America with magnitude 4.8 that caused only minor damage. How many times more intense was the earth movement in San Francisco earthquake than the South American one?
- One earthquake has MMS magnitude 3.4. If a second earthquake has 860 times as much energy (earth movement) as the first, find the magnitude of the second quake.
