SOLAR SYSTEM

UNIVERSE

METEOROIDS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
A magnitude 5 earthquake is ____ times stronger than a magnitude 3 earthquake.
A
2
B
5
C
10
D
100
Explanation: 

Detailed explanation-1: -Due to the variance in earthquakes, it is essential to understand the Richter scale uses logarithms simply to make the measurements manageable (i.e., a magnitude 3 quake factors 10³ while a magnitude 5 quake is 100 times stronger than that).

Detailed explanation-2: -A magnitude 5 is 100 times that of a magnitude 3 quake. With each level, thirty times more energy is released. A difference of two levels on the Richter scale equals 900 times more released energy.

Detailed explanation-3: -An earthquake of magnitude 5 shakes 10 times as violently as an earthquake of magnitude 4; a magnitude-6 quake shakes 10 times as hard as a magnitude-5 quake; and so on. To compare two earthquakes in terms of shaking, you subtract one magnitude from the other and raise 10 to that power: 10^(M1-M2).

Detailed explanation-4: -This is because there are many factors of 10 difference between the smallest and largest amplitudes of observed ground motions. An earthquake that measures 5.0 on the Richter scale has a shaking amplitude 10 times larger and corresponds to an energy release of 31.6 times greater than one that measures 4.0.

Detailed explanation-5: -An M6. 0 is 1, 000 times bigger than an M3.

There is 1 question to complete.