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about 8.9 was the first one

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14y ago

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How rector scale works?

the rector scale is used to measure earthquakes. 1 - 4 you can't feel. 5 is a slight tremor. that x 10 is 6, x 10 is 7, so on.


What was mount etna on the rector scale?

=Mount Etna had an average of 6.8 on the rector scale.=


What scale does Japan use to measure earthquakes?

Japan uses the Richter scale to measure earthquakes. This scale quantifies the energy released by an earthquake using a logarithmic scale from 1 to 10. In addition to the Richter scale, Japan also uses the Japan Meteorological Agency (JMA) seismic intensity scale to evaluate the intensity of shaking felt at specific locations.


What was the magnitude of the 2011 earthquake?

On the rector scale it was 8.8.It was then upgraded to 8.9,and lastly it was upgraded to 9.0 bringing the death toll to more then 21,000 in Japan.


What was the stress of the earthquake in san fransico 1906?

Scientist estimate it at 7.9 on the Rector scale. In 1906 there really was no way to measure how strong an earthquake was.


Where was the 2 last earthquakes took place?

Chile and haiti Japan had the last major earthquake heard about worldwide. But earthquakes happen every second all over the earth. Some arent strong enough to feel or even make the scale, while others are major ones, like the earthquake in Japan.


What is the definination of rector scale?

I suspect that you mean the "Richter scale." I am not familiar with the "rector scale." The Richter scale is a method to describe the amount of energy released by an earthquake as recorded at a specific location. Since the release of energy covers a very wide range of values, the scale is logarithmic, meaning that for every increase in a whole number, the energy is ten times greater. Thus an earthquake registering 5 on the Richter scale is ten times more powerful than an earthquake registering 4 on the Richter scale.


How strong was the japan 2011 earthquake?

9.1 on the Richter Scale.


What is the riotorscale?

If you mean 'Richter Scale' then it is a system used to measure how strong earthquakes are. Eg. The recent Haiti Earthquake measured 7.0 on the scale.


What type of earthquakes cause widespread damage and loss of lives?

Strong ones at or above 6 on the earthquake scale. Earthquakes centered close to human connerbations. Earthquakes that cause Tsunamis.


What is the average Richter scale reading for japan?

Japan experiences frequent earthquakes ranging in magnitudes from small to very large. The average Richter scale reading for Japan can vary depending on the time frame and specific regions considered, but is generally around 4-5 on the Richter scale.


How many earthquakes have japan had over the years?

Because the island of Japan lies in an area where several plates meet, it has experienced frequent earthquakes. Earthquakes are caused by the release of energy or seismic waves when these plates move. See the related links below for a list of earthquakes that have hit Japan in the past. The most recent earthquake and biggest to ever hit Japan occured March 11, 2011 and measured 8.9 on the Richter scale.