Richter Scale:
a. 5.0 – 5.9 ~ Small
b. 6.0 – 6.9 ~ Moderate
c. 7.0 – 7.9 ~ Major
d. 8.0 – 8.9 ~ Great
I found this in my mom’s book on natural disasters. It’s less than 1 year old…can a 5 earthquake cause damage? Please explain.
Have any of you been through an earthquake that was rated around a 5 on the richter scale? What was it like?
How are the Richter Scale and the moment magnitude scale similar? How are they diffrent?
I only know that Richter scale 3 will shake 0.1 mm at a distance of 100 kilometer. It increases by ten fold for each Richter scale magnitude. Give example how it will vary according the distance of epicenter. They say it is Inverse Square of the distance. Please explain with a model calculation. If an earthquake is measured from a distance of 2000 kilometers from epicenter and if the magnitude is 9 in Richter scale what will be the maximum shaking. Will the S wave pass through sea water.?
An earthquake measuring 7 on the Richter scale releases about how many times more energy than an earthquake with a magnitude of 6?
Given that the Richter scale is a base 10- logarithmic measure of the amplitude of an earthquake, determine how much stronger an earthquake that measures 6.9 is than one that measures 5.4.
How do you do this?? Explanation and answer please 
If the LA earthquake had a magnitude of 6.5 on the Richter scale and the magnitude of the San Francisco earthquake had a magnitude 35 times as intense as the LA earthquake, what is the magnitude of the San Francisco earthquake?
What is the measure of an earthquake that is 10 times as intense as an earthquake measuring 5.2 on the richter scale
i think you need to use log
how many orders of magnitude greater is an earthquake rated at 4 on the Richter scale than an earthquake rated at 3 and at 2
We’ve been told that there are a number of flaws to the Richter scale (ML), the limitations of the original instrumentation, that it was only designed for use in California and that shallow earthquakes are a practical problem. Can you explain why this should be?
Reading it back, maybe the point is it only works for shallow earthquakes?!
I’m doing a project in algebra on earthquakes. I think that it might be the Richter scale and the mercalli scale. but there’s also a seismograph…so im not sure which two to use.
why or why not?
and can the it also be high on the mercalli scale but low on the richter scale?
An earthquake with a reading of 7.0 on the Richter scale releases ten times as much energy as an earthquake that registers 6.0 on the scale. If x represents the amount of energy released by a 6.0 earthquake, write an expression for the amount of energy released by a 7.0 earthquake.
First it was the earthquake in Haiti. Then it was the earthquake in Chile. 2 major earthquakes within a month of each other. Now there’s been some tremors in california, one even going as high as 4.3 on the richter scale. And im wondering… Are these earthquakes leading up to something big? Such as The Big One?
I used to have a Chinese page marked that recorded earthquakes in China that were 3.0+ on the Richter scale. (The USGS.gov site records 4.0+ for global events; 2.5+ for tremors in the US).
At any rate, the site moved and I somehow deleted the new address and I’m having trouble finding it again. Would any of you by chance know this site? Thanks so much!
Of course . . . right after I posted this question, I found a site! However, I’d love to know if there are others . . .
Thanks again!
The USGS website only records information on global events over 4.0. I often feel earthquakes in my region that do not show up on that site because they are a 3.5 or something like that. I like to track them or to know at least if I’m feeling an earthquake or something else. (We can also feel the effects of blasting in the nearby mountains.)
Here is a quote from an article regarding the quake in Italy (L’Aquilla).
"The U.S. Geological Survey said the big quake was magnitude 6.3, but Italy’s National Institute of Geophysics put it at 5.8 and more than a dozen aftershocks followed."
I know that the Richter scale is logarithmic, so this difference is actually substantial. Do estimates normally vary this much?
Are you saying that it is different because one measurement was made on the N. American plate and the other made on the European plate?
14.5 on the Richter scale.
I have a math project where we have to present an application of logarithms in real life. I chose the richter scale and I still don’t quite understand, even after reading the explanations, I need an example. Please help me understand or refer me to an example. Thanks.
I really need to understand this:
What is the magnitude of an earthquake that is 3.7 times as strong as another earthquake that measures 5.2 on the Richter scale?
Thanks in advance!
The mega earthquakes in New Madrid on December 16, 1811 and January 23 1812 were quite strong I understand. However the earthquake that struck the New Madrid fault Zone on Feb 7, 1812 is said to have reached 8.0 on the Richter Scale. How is this possible when Charles Richter’s Richter scale was not invented for another hundred years?
and an earthquake that measures 6.2 on the richter scale?
earthquake. Explain how the Richter scale is used..
Help!
please and thank you
The largest earthquake ever recorded was in 1960, in the ocean off the coast of Chile. It measured 9,5 on the richter scale!
After the earthquake 22 hours later it caused 200 people to drown on the east coast of Japan. How did it do that??!
What are amplitude ratios between a Richter-scale 5 earthquake and a Ricther-scale 6 earthquake?
I don’t want to spend a lot, well actually I wouldn’t really want to spend anything since its only a minor assignment but I really want to know how I can make a richter scale or even a seismograph. Thank you (:
The Richter scale was developed in the 1930′s.
I am doing a project fo science. I have to find 10 recent earthquakes with a magnitude greater than5.0 on the Richter scale. Then I have to compile my fidings in a table that includes the epicenter and the magnitude of the quake, the damage it caused, and any other interesting information about the quake. Please help me find earthquakes and a place to make a table.
I need help:
Explain how the Richter scale is used and then tell what the disadvantage is to using this scale.
I don’t have any books to find this information and nothing else.
I had been a little skeptical about that until the late 1980′s. I live in the midwest where we have some quakes, the New Madrid Fault. I lived next to a house where there was a dog and I had an 8 week old puppy.
3 minutes or so before the 4.5 or so quake, the other dog, a hound, started to howl, and I thought it was sick (it was old) and my puppy literally jumped up in my arms. I thought she was reacting to the other dog’s howling. Just then I felt something and heard a roar, like a loud engine or something, but did not really realize it was a quake at first. I went inside a minute later and my Mom said, "Did you feel the earthquake"? A minute later radio and tv were talking about the quake. This was in St. Louis in 1987 or 1988. It was probably less than a 5 on the Richter scale. But the dogs reacted a full minute-3 minutes ahead of time.
I have a math project where we have to present an application of logarithms in real life. I chose the richter scale and I still don’t quite understand, even after reading the explanations, I need an example. Please help me understand or refer me to an example. Thanks.
Why is it possible taht you can get a NEGATIVE magnitude on the Richter Scale?
And can this be justified mathematically? If so, how?