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

The first nationwide celebration of Iranian culture and art

During the late 1960s and throughout the 1970s, Iran experienced a remarkable period of cultural …