1906 Earthquake Research Paper

The San Andreas fault line has caused constant development nightmares for large urban areas such as San Francisco as well as the other cities built on top of it. Fault lines are one of the side effects of the earth’s tectonic plates shifting that can result in devastating earthquakes. Some of the most devastating earthquakes in our modern era have occurred along the San Andreas fault line due to a dense population. The most notable and destructive earthquake on the San Andreas fault line occurred in San Francisco in 1906. The reason this earthquake was so deadly was because of its magnitude and the city’s poor planning. This earthquake was a wakeup call for San Francisco and force the city to revolutionize its knowledge on earthquakes and how to protect their city. Today San Francisco is one of the most well prepared cities for an earthquake and has made great discoveries in earthquake safety measures. The 1906 earthquake in San Francisco has drastically changed how the city has developed its zoning and building code policies, and its earthquake research.

The San Francisco earthquake on April 18, 1906 was one of the most devastating earthquakes felt by a lot of states. At 5:15 am, this earthquake which registered at 8.25 on the Richter Scale shook San Francisco, California. The earthquake lasted less than a minute and it did a lot of destruction in that period of time. The most destructive part during the San Francisco earthquake was the fires which began after, as a result of the earthquake. The fires killed about 3,000 people and left 400,000 homeless (San Francisco Earthquake). The San Francisco earthquake epicenter was located near San Andreas fault and as a result, the damages caused by the earthquake was felt many miles along the San Andreas fault line. The city of San Francisco was known for its culture and economy, and because of the impact of the earthquake and fire, the city was in total disaster. Because of the magnitude of the earthquake and the amount of damage it did to the city of San Francisco, a lot of data and digital images have been collected so that it can be used for references and be displayed at its anniversary.

The Earthquake shook buildings and walls to the ground. But, what came after the quake was much more devastating. Fires broke out in every direction and this thriving city became mostly ashes. People became curious and gracious in this time of turmoil and that has never before been seen in San Francisco. When all hope was lost the firefighters made a great stand putting out the fire and ending the turmoil.

The tectonic setting for the 1906 San Francisco Earthquake was in the outermost shell of earth consisting of rigid plates that have been moving for hundreds of millions of years. Two of these moving plates meet in western California; the boundary between them is a zone of faults, the principal one being the San Andreas fault. The Pacific Plate (on the west) slides horizontally northwestward relative to the North American Plate (on the east), causing earthquakes along the San Andreas and associated faults. The San Andreas fault is a transform plate boundary, accommodating horizontal relative motions (usgs.gov).

On April 18, 1906, an earthquake occurred in San Francisco with a magnitude of 7.9. The earthquake was caused by the San Andreas Fault since the San Andreas Fault slip over a segment. The earthquake could be felt from Oregon to southern California. Buildings in San Francisco was destroyed by earthquake and fires. Fires started after the earthquake occurred and firefighters were not able to stop the fire because the water mains were broken and because of this, firestorms started to develop around San Francisco. Then, the San Francisco Mayor E.E. Schmitz called the U.S. Army troops to shoot anyone that is found looting. While the army was doing that, firefighters and U.S. troops tried to fight the fire by dynamiting the city to create firewalls.

California, and thus San Francisco, lies on the San Andres fault. The earthquake was caused when this fault suddenly shifted, with the rupture spreading for a total of 476 kilometres in northward and southward direction. “This fault is a continental transform fault, which forms part of the tectonic boundary between the North American Plate and the Pacific Plate.” (1906 Earthquake: How long was the 1906 Crack? USGS Earthquake Hazards Program – Northern California, Accessed September 3, 2006). 1 The distance of the fault is of about 1300 kilometres, which runs the length of California from Cape Mendocino in the north to the Salton Sea in the south. Geologists have estimated that the fault moved as quickly as 2.74 kilometres per second. The San Andreas Fault, the source of this disaster, lies ten miles or deeper, at the meeting point of two tectonic plates, the Pacific and the North American. “The right-lateral strike-slip fault is characterized by mainly lateral motion in a dextral sense, where the western plate (Pacific plate) moves northward relative to the eastern plate (North American

According to the court clerk of the U.S. District Court of San Francisco, the earthquake lasted around a minute, however that minute was enough to inflict one of the most devastating disasters in United States history. The earthquake was felt from Oregon to Las Angeles as well as Nevada with the epicenter occurring 2 miles away from San Francisco in the Pacific Ocean. The quake resulted in water mains and gas lines breakages, and the fires raged unchecked which spread to over 500 blocks in San Francisco. Although the earthquake of 1906 is known as the San Francisco earthquake, the cities of Santo Rosa and San Jose were affected as well and lost much of their infrastructure.

The San-Francisco earthquake caused quite a lot of damage in the area, but what is an earthquake? An earthquake is the movement of tectonic plates along a transform boundary and what plate is California sitting on? The Pacific Plate which is not connected to the North American plate and the plate boundary is a transform boundary. Earthquakes occur so often there that people say it is like a rainstorm that is ignored. The place where the Pacific Plate is grinding along with the North American Plate is called the San Andreas Fault. As stated before the earthquake had a magnitude of 7.8 which caused so much destruction a fire broke out. Nobody really knows where the fire started but it burned for 7 days and scorched over 500 city blocks leaving the once proud and powerful city into dust. The combination of the earthquake and fire is said to have killed “ Over 700 deaths by the earthquake and fire is now believed to be an understatement the total loss of life by a factor of 3 or 4.” (The Great 1906 San-Francisco Earthquake.)

"U.S. taxpayers will cover seventy-five to a hundred per cent of the damages"(Schulz). A large effect of the earthquake will be damage to "Oregon's critical energy-infrastructure hub, a six-mile of Portland through which ninety per cent of the state's liquid fuel and which houses everything from electrical substations to natural-gas terminals" (Schulz).

The 9th of February 1971 an earthquake occurred in the lower parts of the San Gabriel Mountains in southern California. The San Fernando earthquake was measured to have a magnitude of around 6.5, which caused severe damage to buildings and major freeways in the Los Angeles area. Two huge health care buildings in San Fernando caused the majority of deaths when they collapsed at both sides. The epicenter of the earthquake was located in the mountains and the most severe damages occurred in northern San Fernando Valley. However, the event impacted other densely populated areas in Los Angeles and caused huge difficulty for transportation as a result of failure in several roadways and freeway interchanges.

The tea cups that began to shatter were enough to wake Rose M. Quinn from her bed in the early morning hours of April 18, 1906. The earthquake that lasted just one minute was estimated to be close to 8.0 on the richter scale and was large enough to destroy 30,000 buildings, including her own home, in what was determined to be one of the most catastrophic natural disasters in U.S history. And while Ms.Quinn held out hope that her “City of the Golden West” would restore its nearly 400 million dollars worth of damage (10.8 billion dollars today), an even stronger and largely unknown earthquake rocked the United States just 100 years prior.

The great earthquake in California on April 18, 1906, killed 3 thousand people. The devastation of earthquakes is tremendous and terrifying. Earthquakes are unpredictable they can happen at any time. Earthquakes can destroy homes and collapse skyscrapers in a matter of seconds. They also start fires destroy water pipes sewage lines.

On April, 18 1906, San Francisco would be divested by several disasters. That morning at five, the San Andreas Fault shifted, resulting in an earthquake with a strength of 7.8 on the Richter Scale. It shocked San Francisco and the surrounding areas. The quake lasted 45 seconds to one minute only, and caused major damage and loss of life. The buildings in San Francisco during the time were largely made of wood and some of the newly built ones were made of brick and stone. City officials worked with builders for this change in response to six fires that occurred closely together before the earthquake, (Gunn, 2008). The new brick buildings could survive a fire, but it was

As the fifth largest healthcare provide in the nation, Allegiant Health has more than 60,000 employees, which provides inpatient and outpatient care to thousands of clients in 21 states. In San Francisco, where the healthcare provider is headquartered, the question of a large earthquake hitting the area is not if, but when. In the past, the area has experienced numerous catastrophic earthquakes. In 1906, an earthquake with an estimated magnitude 7.8, which occurred as a result of a rupture of 296 miles of the San Andreas fault (USGS and UC Berkeley, n. D), struck the greater San Francisco area causing wide spread damage and igniting fires that as damaging as the earthquake itself. The 1906 earthquake and resulting fire responsible for the

The 1906 San Francisco earthquake struck the coast of Northern California at 5:12 a.m. on April 18 with an estimated moment magnitude of 7.8 and a maximum Mercalli intensity of XI . Severe shaking was felt from Eureka on the North Coast to the Salinas Valley, an agricultural region to the south of the San Francisco Bay Area. Devastating fires soon broke out in the city and lasted for several days. As a result, about 3,000 people died and over 80% of the city of San Francisco was destroyed. The events are remembered as one of the worst and deadliest natural disasters in the history of the United States. The death toll remains the greatest loss of life from a natural disaster in California's history and high in the lists of American urban disasters.