About 8.5 million Japanese civilians were displaced from their homes between 1943 and 1945 as a result of air raids on Japan by the United States Army Air Forces (USAAF) during World War II. ... After American bombers started to devastate entire cities in 1945, millions more civilians fled to the countryside.
If your talking about what I think it is the word is delta.
The magnitude scale is logarithmic. That just means that if you add 1 to an earthquake's magnitude, you multiply the shaking by 10. 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
The economics would be pretty different compared to each oneS it would make a huge difference on human. Stop animal testing