The Richter scale assesses the 1906 San Francisco earthquake and the 1964 Alaska earthquake as both being of magnitude 8.3. However, on the moment magnitude scale, the San Francisco earthquake is probably equivalent to a Richter magnitude 7.8 and the Alaska seism is equivalent to a 9.2. The Alaska earthquake was at least 100 times bigger.
Answer the following statement true (T) or false (F)
True
You might also like to view...
What is some of the evidence establishing that climate change is currently occurring?
What will be an ideal response?
Both ends of the rope used during a steady tug-of-war have
A. tensions that relate to the participants. B. unequal tensions. C. equal tensions. D. none of the above
If a material has a half-life of 24 hours, how long do you have to wait until the amount of radioisotope is 1/4 its original amount?
A. 72 hours B. 48 hours C. 12 hours D. 24 hours E. practically forever, but it may be safe by then
Which below does not describe the polar front jet stream?
a. is strongest in winter b. moves farther south in winter c. forms near the boundary called the polar front d. is normally found at a higher elevation than the subtropical jet