Has San Andreas been hit by an earthquake?
Yes San Andreas has had an earthquake in fact it has been a lot of them
San Andreas even has a fault line named after it (The San Andreas fault line is actually a visible crack in the ground) and a lot of earth quakes happen upon a fault line.
Which city is in greater danger of being hit with a 9.0 magnitude earthquake San Francisco or Seattle?
Seattle is located very close to the Cascadia subduction zone, where earthquakes of magnitude 9.0 have occurred in the past. The San Andreas fault which bypasses San Francisco, is not capable of such an earthquake due to it being a transform fault, where the maximum magnitude would be about 7.8-8.0.
that may be the case. there is a quadruo of faults that cause major eruptions one after another in a cycle: chile, new zealand, japan then california on the san andreas fault. geologists predict that that fault will erupt soon and unlike yellowstone, they arent saying it wont be in our life time. this quadruo are locations which cause major earthquakes. scientsts are predicting the next san andreas earthquake will be around magnitude 9.0 out…
Earthquakes affect the land because the plates of the land separate forming fault lines like the San Andreas fault in California. Faults however don't always happen, the earthquake can also cause a tsunami through the shaking of the water and can hit the land destroying buildings and cities. the same destruction can happen with an earthquake alone.
The entire state is on the fault. The fault goes from Southern California to Northern California and the scarf shelf can be seen along spots in the San Joaquin Valley. The 1906 San Francisco earthquake was a 7 point quake and even today damaged can be seen in some older buildings. In the 1980's Los Angles was hit with a powerful quake on the fault and freeway overpasses fell.
Although there are some earthquakes that are exceptions, most are identified by the year they occurred and where they hit (usually a prominent location) such as the 1906 San Francisco Earthquake (the San Francisco Fire) and the 1922 Vallenar Earthquake (Chile). Exception include names such as the Good Friday Earthquake (another name for the 1964 Alaskan Earthquake), and the Boxing Day Earthquake (2004 Indian Ocean Earthquake and Tsunami).
The massive earthquake that hit Japan was rated an 8.9 on the Richter scale, which means that it was very large, and very devastating. This earthquake was much more powerful than that of the earthquake in Haiti. The earthquake that hit Japan caused a tsunami, which has killed hundreds, and thousands are still missing. Information is still being gathered at this time.
The worst quake in U.S. history was probably the San Francisco earthquake of 1906. The quake ans the fires it started destroyed about 80% of San Francisco and killed at least 3,000 people. The worst hurricane to hit the U.S. was the Galveston hurricane of 1900. The entire town of Galveston, Texas was destroyed and 6,000 to 12,000 people were killed.
Minor earthquakes happen in the Bay Area of Northern California often (there are thousands a year in fact). But the two most major earthquakes to hit the area happened in 1906 and 1989. 1906 - The San Francisco earthquake was a magnitude 7.9 and was one of the worst natural disasters in American history. Fires broke out in the city, 3,000 people were killed and 80 percent of the city destroyed. 1989 - The Loma…
There have been two major San Francisco earthquakes. The most devastating earthquake to hit San Francisco to date occurred on 18 April 1906 at 5:12 am. It measured around 7.7 to 7.9 on the Richter Scale. It is estimated that between 3000 and 6000 people were killed, but exact figures are not available. A great deal of damage was caused by the fires that burned out of control after the event. Another major earthquake measuring…
Well, truth is right now a lot of experts are saying that there might be a 6.0 earthquake near Berkeley. It also might hit San Jose, but they are still not sure. Here is a link that will help you. http://berkeley.patch.com/articles/berkeley-earthquake-prediction-no-basis-in-scientific-fact-says-usgs