people died
I think that the major event in California is when The gold rush appear and when the
The Kingston earthquake
The loma prieta earthquake in 1989.
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The Kashmir Earthquake happened in the 8th of September 2005 and measured 7.6 on the Richter Scale killing 80,000 people.
secondary because it tells you about what happened afterwards
The San Francisco earthquake
There was no major earthquake in San Francisco in 1903. The most significant earthquake in San Francisco in the early 1900s was the 1906 earthquake that caused widespread destruction.
Someone shouted and it was so loud that the earthquake happend in one second!
In 1906, San Francisco was struck by a devastating earthquake, known as the Great San Francisco Earthquake, which occurred on April 18. The earthquake, with an estimated magnitude of 7.9, caused widespread destruction, fires, and loss of life. The city was left in ruins, with an estimated 80% of San Francisco destroyed by the earthquake and subsequent fires.
The difference between them is that Primary effects happen during the earthquake e.g. Casualties, Damage to parking structures & free ways. But with Secondary effects they happen after an earthquake e.g. Fire, Landslides & Liquefaction
One that would be included would be the San Francisco Earthquake of 18 April 1906.
The San Francisco earthquake happened at 11:45 am on March 22. 1957. While it rated a 5.3 on the Richter scale and caused some structural damage, no one was killed or injured.
A magnitude 7.9 earthquake occured at in San Francisco at 5:12 a.m. on Wednesday, April 18, 1906.
It started at 5:04pm on the 17th October 1989
The 1906 San Francisco earthquake was caused by the movement of the North American Plate sliding past the Pacific Plate along the San Andreas Fault, resulting in intense horizontal shear stress that built up and released suddenly.
Over 10,000 aftershocks were recorded following the San Francisco earthquake of 1906. The largest aftershock occurred approximately 20 minutes after the main quake, measuring around magnitude 5.5.