Massive destruction after 1906 San Francisco Earthquake

The transcript describes the devastating impact of an earthquake on San Francisco, highlighting efforts to stop the fire on Van Ness Ave, the widespread destruction, and the economic impact. Over 28,000 buildings were destroyed, with damage exceeding half a billion dollars, marking it as one of the most tragic earthquakes in North American history.

What was the extent of the area affected by the earthquake?

What was the nature of the destruction caused by the earthquake?