The San Andreas Fault is a continental transform fault that forms part of the tectonic boundary between the Pacific Plate and the North American Plate. The strike-slip fault is characterized by mainly lateral motion in a

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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 scaleis 7.9; values from 7.7 to as high as 8.3 have been

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Early death counts ranged from 375 to over 500. However, hundreds of fatalities in Chinatownwent ignored and unrecorded. The total number of deaths is still uncertain, but various

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The city's fire chief, Dennis T. Sullivan, was gravely injured when the earthquake first struck and later died from his injuries. The interim fire chief sent an urgent request to the Presidio

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Property losses from the disaster have been estimated to be more than $400 million in 1906 dollars. This is equivalent to $8.76 billion in 2019 dollars. An insurance industry source

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The 1906 Centennial Alliance was set up as a clearing-house for various centennial events commemorating the earthquake. Award presentations,

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As damaging as the earthquake and its aftershocks were, the fires that burned out of control afterward were even more destructive. It has been

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