On April 25, 2015, an earthquake of magnitude 7.8 on the Richter scale struck Nepal. On May 12, 2015, a major aftershock of magnitude 7.3 on the Richter scale shook the same region. (Round your answers to two decimal places.) (a) How did the power of the first earthquake and this aftershock compare? The first quake was times as powerful as the aftershock. (b) What would be the magnitude of a quake four times as powerful as the first quake?
Unitary Method
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On April 25, 2015, an earthquake of magnitude 7.8 on the Richter scale struck Nepal. On May 12, 2015, a major aftershock of magnitude 7.3 on the Richter scale shook the same region. (Round your answers to two decimal places.)
(b) What would be the magnitude of a quake four times as powerful as the first quake?
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