What is the Richter scale equation?
A better measure of the size of an earthquake is the amount of energy released by the earthquake, which is related to the Richter Scale by the following equation: Log E = 11.8 + 1.5 M (where Log refers to the logarithm to the base 10, E is the energy released in ergs and M the Richter magnitude).
How do you calculate earthquake energy?
The energy release can also be roughly estimated by converting the moment magnitude to energy using the equation log E = 5.24 + 1.44M, where M is the magnitude.
What is the magnitude in Richter scale of an earthquake that released 10/16 joules of energy?
Seismic energy by magnitude compared:
| Magnitude | Energy in joules (J) | TNT equiv. |
|---|---|---|
| 6.0 | 6.3 x 1013 | 15 kilotons of TNT |
| 7.0 | 2.0 x 1015 | 500 kilotons of TNT |
| 8.0 | 6.3 x 1016 | 15 million tons of TNT |
| 9.0 | 2.0 x 1018 | 500 million tons of TNT |
How many times as much energy is released by an earthquake with a magnitude of 9.2 than by an earthquake with a magnitude of 8?
logarithm is the exponent. Use a calculator to evaluate. The energy released by an earthquake with a magnitude of 9.2 is 3.98 × 10 25 ergs. 6.
Does the Richter scale go from 1 to 10?
The Richter scale does NOT go from 1 to 10, or between any limits at all. Magnitude 0 and smaller earthquakes happen all the time. As a matter of fact, the smaller they are, the more frequently they occur, but the instrumental detection limit extends only to around magnitude -3.
How is the Richter scale logarithmic?
The Richter scale is a logarithmic scale used to express the total amount of energy released by an earthquake. Each number increase on the Richter scale indicates an intensity ten times stronger. For example, an earthquake of magnitude 5 is ten times stronger than an earthquake of magnitude 4.
How much energy does a 9.0 earthquake release?
99,000,000 tons
A magnitude 4.0 earthquake is only equivalent to about 6 tons of TNT explosives, but because the Richter scale is a base-10 logarithmic scale, the amount of energy released increases quickly: A magnitude 5.0 earthquake is about 200 tons of TNT, magnitude 6.0 is 6,270 tons, 7.0 is 199,000 tons, 8.0 is 6,270,000 tons.
How do you find the magnitude and intensity of an earthquake calculator?
The Richter scale defines the magnitude of an earthquake to be R=log(IcIn) where Ic is the intensity of the earthquake and In is the intensity of a standard earthquake. Therefore, you can write the difference of two magnitudes as R2−R1=log(I2I1).
What is the magnitude in the Richter scale of an earthquake that released 10 10 joules of energy?
If an earthquake released 10 joules of energy then its magnitude on a Richter scale would be -4. Normal earthquakes have magnitude 3 to 8 or more.
How strong is a 9.0 magnitude earthquake?
A magnitude 9.0 earthquake can last for five minutes or longer, and the amount of energy released is about 1,000 times greater than that of a 7.0. According to the U.S. Geological Survey, the most powerful quakes could leave few if any masonry buildings standing, destroy bridges and toss objects into the air.
What is the intensity of an earthquake with a magnitude of 3?
Earthquake magnitude
| magnitude level | category | effects |
|---|---|---|
| less than 1.0 to 2.9 | micro | generally not felt by people, though recorded on local instruments |
| 3.0–3.9 | minor | felt by many people; no damage |
| 4.0–4.9 | light | felt by all; minor breakage of objects |
| 5.0–5.9 | moderate | some damage to weak structures |
How strong is 6.7 magnitude earthquake?
Earthquake Magnitude Scale
| Magnitude | Earthquake Effects |
|---|---|
| 5.5 to 6.0 | Slight damage to buildings and other structures. |
| 6.1 to 6.9 | May cause a lot of damage in very populated areas. |
| 7.0 to 7.9 | Major earthquake. Serious damage. |
| 8.0 or greater | Great earthquake. Can totally destroy communities near the epicenter. |