One of the biggest earthquakes to rock San Francisco was the San Francisco earthquake of 1906. It was called as the Great Quake of 1906. The epicenter of this devastating quake was about 2 miles south of San Francisco City. The earthquake was felt at 5:12 am on April 18, 1906, and it struck the Northern California coast. The earthquake was recorded to be having an intensity of 7.8 on the Richter scale. It was also said to be a very severe and extreme one that had a depth of 5 miles. There was a strong foreshock of about 20 to 25 seconds before the attack of the quake. The main shock lasted for about 42 seconds.
There was severe shaking felt from Eureka to Salinas Valley. This means that the stretch from the North to the South of San Francisco Bay felt the effects of the Great Quake of 1906. The effect of the severe earthquake was severely felt in the city as the fire broke out in the city and it lasted for several days. The fire had a devastating effect on the city and caused a lot of damage to the city. It was reported that nearly 80% of San Francisco city was damaged and it took a lot of time and money to repair the damages caused by the earthquake. The fire and the earthquake were recorded to be one of the worst damaged to hit the California State.
It was found out that the shaking intensity of the earthquake was correlated to the core geological conditions. The stronger shakings were felt in the areas that were located in the sediment filled valleys and the bedrocks sites did not face a major shake like the sediment areas. The entire downtown of Santa Rosa was destroyed.
It was estimated that as many as 3,000 people had lost their lives due to the Great Quake of 1906. My good friend who works at http://www.asbestosremovalanddemovancouver.com had a grandfather pass away in this earthquake. As many as 200,000 people had lost their homes in this nature’s fury and were left homeless. They had to camp in the city parks under the tents supplied by the Army. The other refugee camps were located in the Presidio and the Panhandle areas and along the beaches between the Ingleside and the North Beach. Even after two years of the quake, many of the refugee camps were still in function. This was the extent of damage that the Great Quake caused in California.