Speaking of the San Andreas Fault, what is the general direction is the land mass moving in the Southwest corner of the US? Is it probable that it will slide off into the ocean? Is that an unlikely event, and why or why not?
a Many earthquakes occur along the San Andreas fault
b the North American Plate and the Pacific Plate are locked in dynamic equilibrium
c the subduction zone is the boundary at which the crustal plates are drifting apart
d the age of the bedrock increases as distance from the fault increases
The San Andreas Fault line divides the ___________ plate from the ________ plate ?
Which four statements are true regarding the San Andreas Fault?
A. The San Andreas Fault is located in California.
B. Some segments of the fault have a slow, gradual movement resulting in little noticeable seismic activity.
C. Stick-slip motion along the fault produces the largest earthquakes.
D. Movement along the fault is occurring at a rate of about 1 or 2 inches a day.
E. The earthquake activity around Parkfield has been very regular since the mid 1800′s.
the San Andreas Fault is going to go off big time? I mean fifteen years ago the heads of the Jet Propulsion Laboratories in Pasadena, CA and the heads of the Seismographic Institute said that there will probably not be a major earthquake during our lifetimes. Six weeks later the L.A. Times had an article stating that the selfsame heads of these places bought up over a million acres of desert east of Palm Springs at 25 cents an acre. Do you believe this?
Okay this summer, my family and I were in Las Vegas and we decided to go to Los Angeles. So we drove there on Interstate 15 to Interstate 10. My question is, Did we cross over the San Andreas fault? If we did could we see it like you can in other parts of California. I fell asleep in the middle of California so I couldn’t remember.
And by bigger I mean stronger earthquakes, or volcano eruptions from active volcanos. Along the San Andreas fault line, could this mean a bigger quake?
I was watching Fox news and it said that there were 25 (or some number like that) earthquakes in California in the past two months.
http://earthquake.usgs.gov/eqcenter/recenteqsus/
Recent earthquakes
By the way, I haven’t been keeping track to earthquakes as much as I used to..I was unsure if all of the quakes in Cali were common or not (like if this sort of thing happens all the time).
okay, so i’ve been reading up on earthquakes since the one on Tuesday, and its starting to get to me.
What Sections of the san andreas fault are expected to erupt?
and what will it be like?
One day Billy Bob was living a normal life in his home in New York City, New York. It was a white house in urban New York City. He had just come home from work and was looking forward to a quiet evening. His work was being a construction worker building houses for people. He was watching Sports Center when suddenly he felt the ground shake. He didn’t think it was anything because earthquakes did not happen in New York City. He knew that there were no fault lines to cause earthquakes in New York City. Then the shaking became more violent. Then things were falling over in his house. He went outside and looked at everything outside falling down. He quickly went into his crawlspace and waited until the earthquake was over. The earthquake went on for three hours. When he went outside to check on what happened he found everything to be toppled over, except for his house. His house was just recently all by himself built so that was probably why his house was the only building standing because he was a good construction builder..
He watched the channel 5 news and found out that approximately 292 buildings had been destroyed. The earthquake was a 4.5 magnitude on the Richter scale. It was not a big earthquake. He then began helping rebuild the city because he was a construction worker who built houses. He knew that it would take about a half a year to rebuild all of the damage that was caused by the earthquake. Something that nobody could figure out was why the earthquake happened. There were no fault lines near New York to cause the earthquake. The place earthquakes would make sense would be California because the San Andreas Fault is there. How could an earthquake occur without any fault lines for the earthquake to occur? That’s what all of the meteorologist were wondering after the earthquake happened. The city was rebuilt in about 66 months.
About 2 weeks after the city was rebuilt Billy Bob was outside building a house in Junee. He was building a very large house in a very large neighborhood. He saw on the weather that it was about 83 degrees Fahrenheit. The temperature with the humidity was unbearable. After he was done he went home. When he was about to go inside he noticed that it felt a lot colder. Then the temperature was rapidly dropping. He looked at the barometer in his house and it said it was 21 degrees Fahrenheit. He quickly shut all of the doors and windows so no cold air would come into the house. On the news it said that everywhere in the US the weather was rapidly dropping. None of the meteorologists could figure out why the weather was dropping so rapidly or why it was dropping at all. He went to bed a few hours later. The next day when he looked what the temperature was, he found out that it was negative 150 degrees Fahrenheit. He made sure to stay inside and keep the heat up as high as possible so he would not freeze to death inside his home. Nobody could figure out why the weather was so cold. But then about a week later the weather was back in the 80’s. All of the meteorologists were wondering why the weather was so messed up.
The weather stayed the same for the next 5 months. Everyone in New York and the US was getting back to their normal lives. But then the meteorologists were predicting bad storms. They were predicting an extremely bad thunderstorm. Everyone started to rush into stores and get supplies for when they were going to leave New York City before worse storms happen. A lot of things get broken and stolen in stores. People also fight to get supplies and a lot of people get injured in the stores. It was like the store had been destroyed because of all of the damage to everything inside the stores. Fortunately Billy Bob gotets out of New York and into Chicago. But other people weren’t so lucky. About half of the people in New York City escaped New York. The streets were empty because of the people that left. About 5 days after some people left he got into Chicago he heard on the news it said that a much larger earthquake had just happened in New York. It was estimated that 3,500 buildings were destroyed in the massive earthquake. The magnitude of this earthquake was 10.0. It was the biggest earthquake ever recorded. They showed pictures of how New York City looked like. It was just destroyedin ruins because of how big the earthquake that happened was. There is also a fire still going on in New York City that doesn’t look like it will stop soon. Then as the meteorologists predicted an extremely bad thunderstorm started and there was even more damage to everything. New York City was in ruins. And if that wasn’t enough there are tidal waves crashing into New York City from the side of New York City adding to all of the damage that had already happened..it.
Billy Bob decided that he would stay in Chicago until he is absolutely sure the storms have ended. But he wasn’t sure that the storms would end. The fire and the tidal waves and the thunderstorm lasted for about 3 days
The fault was a normal fault formed by the crust being pulled apart, due to the pull of a divergent plate boundary. The cold weather happened when global warming causes large areas of the Greenland and Iceland ice shelves to break off and melt, diluting the Atlantic Ocean with large amounts of fresh water. This slows the Gulf Stream causing a rapid cooling of the Northern Hemisphere. Since plates are always moving they rub against each other in some places sink beneath each other in others, or spread apart from each other (like the Mid-Atlantic Ridge).
After all of that New York City looked like a warzone from all of the damage. Billy Bob hopeds that the storms have ended for good because he is tired of all of the stress of the storms. Billy Bob knows that he will probably not move into New York again because New York City is dilapidated. After about a year of staying in Chicago he was convinced that the storms had caused too much damagestopped for good and went back to New York Citydecided he would never go back to New York City. None of the buildings were still standing
The city was in ruins. It would probably take years and years to rebuild back to what it used to be before the storms. Billy Bob found a job as a construction worker who built houses in Chicago.. He decided to just go back to Chicago and live there for the rest of his life because it would be impossible to live with everything in ruins. In the end meteorologists figured out that the earthquakes happened because of a fault line they found running through New York. The reason nobody knew about the fault was because that it just formed about 5 years ago and just now started to have an earthquake there.
At such places the motion isn’t smooth–the plates are stuck together at the edges but the rest of each plate is continuing to move, so the rocks along the edges are distorted. As the motion continues, the strain builds up to the point where the rock cannot withstand any more bending. With a lurch, the rock breaks and the two sides move. An earthquake is the shaking that radiates out from the breaking rock. Billy Bob went on to live the rest of his life in peaceiece in Chicago where he lived for the rest of this life.
I have heard much talk about a future California earthquake (San Andreas Fault) that is supposed to be the biggest, most devastating one yet. It is predicted to take place in my lifetime. There was a special on tv, but I didn’t get to see it and I don’t remember what it was called.
Does anyone know of a site or program that has a big description of the estimated/supposed year the earthquake will happen, damage, etc?
and if it did crack then what would happen to LA and Hollywood and San Diego and San Fransico? lol Would everybody just sink and die? If people know the san andreas fault line will crack someday during a big earth quake then why do people in these places?
I bet someday in the far future in hundreds of years all that land will sink after a big earthquake and it will become a very famous for people to explore underwater cities.
If, for millions of years, the west side of the San Andreas fault has been moving northwesterly to the east side, should not the mountainous coastal land mass south of where the fault enters the sea (at Daly City) have formed a peninsula by now? (PS: for whoever answers this question, I will appreciate
your looking at my Geology question # 2, relative to the Alburqueque rift valley also). Thanks.
I was wondering if the San Andreas fault line is visible from above and can you take helicopters tours over the site.
The large area of high hazard in the valley east of San Fernando is due to the large, northward dipping thrust fault that was the source of the 1971 quake. Why is the region of hazard here broader than the region around the San Andreas fault near Palmdale?
http://earthquake.usgs.gov/
A red line that’s appeared on the right Map that shows North America and it also reaches up to Alaska. What does it mean?
I know it’s the san andreas fault but why is it marked with the red line?
any other time I’ve looked there never been anything like that there.
If a bomb were to be dropped in the San Andreas Fault, would the result be a massive earthquake?
Like a 7.5 is 300 years past due, ect. Can the USGS predict an earthquake and if so has anyone heard of one suposed to be happening in the san andreas fault?
Can anyone tell me the reason to start the california earthquake in April 18,1906 ???
e.g. plate movement or other resonable reason.
is it relate to the San Andreas fault zone? California is located at North. America plate, is the plate stretching or squeezing or twisting??
if can, excellent in both pictures and literary compositions, thank you
.I know we can’t predict the future, but estimate..I live in Southern California, and rumor has it, the San Andreas fault is long over due, particularly the Southern part of it’s 800 mile scar. Lately, I have been having dreams of this catastrophate Quake occuring.
*catasthropic.spell check..
For geography, i have to create a information bootklet about earthquakes, the San Andreas Fault, the Bay Area of San Francisco and other link to them.
I just don’t understand What is the reason behind to knowing an earthquake will arise by the San Andreas Fault?
Or if i’m completely wrong, can someone explain more about this whole thing? Thankyou.
The underground nuclear bomb explotions (like north korea) apparently creates a shockwave that is detected as an "artifical" earthquake. There are numerous seismic problems in Japan by natural geological processes. Is the nuclear explosion strong enough to trigger an unattended consequence (i.e. tip the balance for a major earthquake of natural causes)? There were a lot of these tests done in Nevada which is not far from California's San Andreas fault. Does that mean the forces involved are just not strong enough to significantly impact natural geological processes?
I have heard much talk about a future California earthquake (San Andreas Fault) that is supposed to be the biggest, most devastating one yet. It is predicted to take place in my lifetime. There was a special on tv, but I didn't get to see it and I don't remember what it was called.
Does anyone know of a site or program that has a big description of the estimated/supposed year the earthquake will happen, damage, etc?
As shown here: http://upload.wikimedia.org/wikipedia/en/8/8a/San_Andreas_Fault_Map.gif the Pacific Plate goes to south and the NorthAmerican Plate goes to the north. So if you lay down a railway across the Fault, it has to break the rails once in a while. Also the sides of the railway doesn't connect to each other in a few years. So how is it solved? I cannot go and see myself…
If motion of Pacific Plate along the San Andreas Fault is, on the average, 3.5 cm per year, how many years will it take los angeles to move the 1,083 kilometer distance to be next to san francisco?
Show me how you got the answer too, thank youuu! 
Also the San andreas fault line forms the boundry between which two techtonic plates?
If the San Andreas fault didnt completely slip during the Northridge Earthquake…and a magnitude 6.7 was created…what are the chances of the upcoming earthquake to be a 9.0 or higher..?
What causes earthquakes along the San Andreas fault in California?
Homework question……help please
I'm no scientist, but because Peru had an earthquake, would that put more pressure on the fault lines north, up the coast and eventually cause major earthquakes on the coast of California? Didn't California have a small earthquake just recently and wasn't there predictions of a major earthquake on the San Andreas Fault line made on CNN just a few days ago? Shouldn't people be made more aware of this possibility?
The San Andreas Fault marks a boundary between the Pacific Plate and the North American Plate. The Cascade Range is a major mountain range of western North America. The Cascades are part of the Pacific Ring of Fire.
San Francisco: The Great Quake
The San Francisco Earthquake of 1906 was an occurrence of mostly pure tragedy in history. It was one of the most significant earthquakes of all time. Happening at precisely 5:12 AM on April 18, 1906, this was a devastating event that definitely would not be forgotten for many years to come. In the following paragraphs you will hear about some of the many horrible events of this time, and even a few of the good things that happened because of it.
But, what is an earthquake? An earthquake is a tremor, or shaking, of the Earths surface. The tremor is caused by movement of the fault lines located in the Earths crust. The tremors send out seismic waves, or shock waves, which are what we usually feel and call an earthquake.
In 1935, Charles Richter, a seismologist from America, developed a scale that measures the moment magnitude of seismic waves. This device is called the Richter scale. It records data on a scale from one through nine, the strength of the number being ten times more powerful than the one right before it. Most seismologists say that anything over a seven point magnitude is thought of as a pretty severe earthquake. According to the measurements of this scale the San Francisco earthquake came in as a seven point eight.
A foreshock, or a smaller earthquake that comes before a larger one, had occurred about twenty to twenty five seconds before the actual earthquake. Violent shocks and strong shaking lasted forty five to sixty seconds during the actual earthquake. When the earth started to move the shaking was so extravagant it was felt as far north as southern Oregon, as far south as south Los Angeles, and even as far inland as central Nevada.
The earthquake was caused by a rupture on the San Andreas fault which runs from the Salton Sea to Cape Mendocino, a distance of about eight hundred miles (one thousand two hundred eighty seven kilometers). The earthquake had ruptured along the fault for two hundred ninety six miles. The main shock epicenter was located offshore about two miles, or three kilometers, from the city.
The earthquake had not caused damage just by the strong shaking it had also started fires. It was estimated that up to ninety percent of the total destruction and damage was caused by fires. The fires were caused by things such as broken gas lines somehow catching fire, forest fires caused by campfires set by refugees, and quite a few of them were arson. Some people were even that desperate that they would set fire to their own homes so they could collect more money from insurance companies that did not cover earthquake damage but actually did cover fires. This also led to millions of dollars in debt for the insurance companies, but the insurance companies were not the only ones in debt the entire city was in debt! We’ll see to that later.
Some of the smaller fires in the downtown area actually combined to make one inferno, or a very big fire. To make things even worse in many parts of the city water mains had been destroyed and broken from the effects of the earthquake giving firefighters limited resources to put out the fires. As a result the fires lasted for four days and four nights. Over five hundred blocks of the downtown area of the city were destroyed from the fire.
Troops were immediately put into action and had arrived by seven o‘clock AM. But by the time they had got there, the fires caused by the quake had grown much larger than what they were just a few hours before. In order to put out the fire the San Francisco Fire Department, General Fredrick Funston (the leader of the troops), and the troops themselves came up with and idea that called for dynamite. This idea was that all of them would blow up and bomb buildings in a way that was creating more fires but also creating a ring of ruins around the fires. Sometimes it worked, other times it did not. But eventually those three groups got to putting out the fires once and for all.
Mayor Schmitz later allowed police, vigilante patrols, and military troops to shoot any looters that they saw raiding homes and/or businesses. Because of this outrageous event about five hundred people were shot and killed.
Due to the poor building standards of the time, many homes had been completely destroyed by both the fire and the earthquake. Some people say that the greatest losses of the earthquake were the ones in which some scientific laboratories were completely destroyed by the fire. In fact Alice Eastwood, the Curator of Botany at the California Academy of Sciences in San Francisco, had been known for discovering fifteen hundred rare species of molecules and atoms, but sadly a very large percentage of her studies and specimens were lost in the great quake and fire. The rebuilding of the town had cost over five hundred million dollars in 1906 money, which is equal to five billion ten million dollars in today’s money.
Between two hundred twenty five thousand and three hundred thousand of the four hundred ten thousand people living in San Francisco at the time were left homeless. These people were told to stay in camps in the bay area. The army had built five thousand six hundred ten wooden houses to hold twenty thousand people. The houses were spread across eleven camps. Displaced people would pay two dollars per month to stay in these houses until their homes were rebuilt. The people that did not stay in the camps were better off to live with family members who were nearby until their homes were finished.
The city’s rebuilding took a period of about ten years. By that time the city had been almost completely rebuilt. The people of the highest power in the city wanted to rebuild the city as quick and soon as possible so they would be able to start selling newly built houses and open more new businesses to bring in more money to the city, but since the city was in such a rush to rebuild itself the cities building standards had actually been lowered instead of being raised. Because of this poorly planned rebuild, if another earthquake happened the damage and expense would be worse and higher than the what it was for the 1906 earthquake.
One question commonly asked is, Can it Happen Again? I did some of research and came up with these facts, the answer is yes, it definitely could happen again because San Francisco is very close to the San Andreas Fault, and also because the main epicenter of the 1906 earthquake was located only 2 miles off shore from the city itself. Many scientists have estimated that if another earthquake between a level of six point magnitude to a level of eight point magnitude had occurred the epicenter would very close to the one from the 1906 quake.
The San Francisco Earthquake of 1906 was an occurrence of mostly pure tragedy in history. It was one of the most significant earthquakes of all time. Happening at precisely 5:12 AM on April 18, 1906, this was a devastating event that definitely would not be forgotten for many years to come. In the following paragraphs you will hear about some of the many horrible events of this time, and even a few of the good things that happened because of it.
But, what is an earthquake? An earthquake is a tremor, or shaking, of the Earths surface. The tremor is caused by movement of the fault lines located in the Earths crust. The tremors send out seismic waves, or shock waves, which are what we usually feel and call an earthquake.
In 1935, Charles Richter, a seismologist from America, developed a scale that measures the moment magnitude of seismic waves. This device is called the Richter scale. It records data on a scale from one through nine, the strength of the number being ten times more p