San fransisco after the 1906 Earthquake

[custom_adv]
image
The 1906 earthquake preceded the development of the Richter magnitude scale by three decades. The most widely accepted estimate for the magnitude of the quake on the modern moment magnitude scale is 7.8; values from 7.7 to as high as 8.3 have been proposed.
Pages: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Check Also

Lawyer, human rights activist

Regarding education, Ebadi was fortunate to have grown up in a time when openness and …