In 1986 an earthquake measuring 5.0 on the Richter scale hit northeast Ohio. This earthquake is _______ times as intense as a magnitude 2.0 quake

2 answers

The Richter Scale is logarithmic, 5-2 = 3.

10^3 = 1000
On December 16, 1811, an earthquake occurred near New Madrid, Missouri, that temporarily reversed the course of the Mississippi River. The quake had a magnitude of 8.8. On October 17, 1989, a calamitous quake measuring 7.1 on the Richter scale occurred in San Francisco during a World Series baseball game on live TV. The New Madrid quake was _______ times as intense as the San Francisco quake.