History of Earthquakes

History of Earthquakes

History of Earthquakes

The San Francisco Earthquake of 1878

This earthquake was named “the great San Francisco earthquake”, until the year 1906. This earthquake, known as one of California’s destructive earthquakes took place on October 21, 1968. It took place because of a slip on the Hayward Fault. A lot of damages took place in communities that are located along the fault and in San Francisco and San Jose. The residents of northern California and Nevada could feel the tremors of this earthquake. This earthquake resulted in five deaths, thirty injuries, and property damage over $300,000.

The San Francisco Earthquake of 1906

This earthquake that took place in California on April 18, 1906, and it is known as one of the most significant earthquakes of all time. It is still important today due to the fact that a great amount of scientific knowledge came from it rather than how big it was. It ruptured the northernmost 430 kilometers of the San Andreas Fault from northwest San Juan Bautista to the triple junction of Cape Mendocino. This earthquake confused and surprised contemporary geologists with its large, horizontal displacement and great rupture length. This earthquake took place on April 18, 1906, and over three-thousand people died as a result of this storm. 225,000 people also got hurt and there was over $400,000,000 in property damage.

The Loma Prieta Earthquake of 1989

This earthquake was the first major event to take place along the San Andreas Fault since the 1906 earthquake happened. It ruptured the southernmost of forty kilometers of the break that took place in 1906, in comparable amounts of right-lateral strike-slip and reverse slip motion. The average strike-slip displacement was 1.2 meters while the average reverse-slip displacement was 1.6 meters. It happened on October 18, 1989, had a magnitude of 6.9, caused sixty-three deaths, injured 3,757 people, and caused $5,900,000,000 in property damage. At that time, it was the most storm that caused the most amount of money in property damage.

2014 South Napa Earthquake

At 3.20 a.m. pacific time on August 24, 2014, tens of thousands of people that lived in the Bay Area woke up to a rumbling. It was the strongest earthquake in that area since the Loma Prieta Quake of 1989 hit the town of Napa and Sonoma Counties. Shaking was noticed as far south as Fresno and as far north as Chico. The epicenter of this magnitude 6.0 earthquake was halfway between Napa and Vallejo.

These earthquakes, though very damaging and hurtful to the people of California will always be an important element of our countries weather history. Not only did they do hurt and kill people and damage property, they taught us more about how earthquakes operate and the science behind them.

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