can anyone tell me the reason to start the california earthquake in April 18,1906 ???
87261
The San Francisco 1906 earthquake occurred along the well-known San Andreas fault. The San Andreas fault is where two different blocks of the Earth's crust contact each other. Take a look at these websites for more information:\n\nhttp://en.wikipedia.org/wiki/1906_San_Francisco_earthquake\n\nhttp://en.wikipedia.org/wiki/San_Andreas_Fault
668139
I remember reading somewhere that the great New Madrid earthquake in the early 1800s was so powerful that it caused the Mississippi River to flow in the opposite direction for a time.  I imagine that tectonic activity - movement that changes the shape of the earth's crust - would do it.
668980
zeroEarthquake History of Massachusetts\n\nMassachusetts was the sixth state of the original thirteen to enter the Union (1788). However, the region was visited by English explorers as early as 1602, followed by the arrival of the Pilgrims at Plymouth in 1620. The early settlers compiled the extensive historical accounts that are now available. Nineteen earthquakes, intensity V or greater, have centered in Massachusetts. A number of other earthquakes were centered off the coast of Massachusetts and affected the eastern portion of the State. A shock in 1755 reached intensity VIII at Boston and was felt across the State. In addition, Massachusetts was affected by some of the more severe Canadian shocks plus the earthquake of 1929 that centered on Grand Banks of Newfoundland. \n\nStrong earthquakes in the St. Lawrence Valley in 1638, 1661, 1663, and 1732 were felt in Massachusetts. The 1638 and 1663 shocks damaged chimneys at Plymouth, Salem, and Lynn. On June 11, 1643, Newbury, Massachusetts, was strongly shaken. Again in 1727 (November 9) an earthquake described as "tremendous" in one report and "violent" in another caused much damage at Newbury. The shock was felt from the Keenebec River to the Delaware River and from ships at sea to the extreme western settlements. Several strong aftershocks were reported from the area through February 1728. \n\nEastern Massachusetts was shaken moderately on February 17, 1737, and June 24, 1741. Then on June 14, 1744, large numbers of bricks were shaken from tops of chimneys at Boston and other towns and stone walls were shaken down. Many persons in Newbury and Ipswich were alarmed. The earthquake was reported felt severely at Falmouth, Maine. \n\nOn November 18, 1755, one of the most significant earthquakes in the northeastern region occurred off Cape Ann. At Boston walls and chimneys were thrown down and stone fences were knocked down (intensity VIII, Modified Mercalli scale). Some descriptions mentioned violent movement of the ground, like waves of the sea, making it necessary to cling to something to prevent being thrown to the ground. At Pembroke and Scituate small chasms opened in the earth through which fine sand reached the surface. Large numbers of fish were killed and many people on vessels felt shocks as if the ships were striking bottom. This earthquake was felt from Lake George, New York, to a point at sea 200 miles east of Cape Ann, and from Chesapeake Bay to the Annapolis River, Nova Scotia, about 300,000 square miles. Reports of a seismic sea wave reaching the West Indies following the earthquake appear to be erroneous. A tsunami had occurred in the West Indies on November 1, 1755, following the great Lisbon earthquake, which apparently led to a report of its association with the Cape Ann earthquake. \n\nLittle information is known about an earthquake that occurred on October 5, 1817. Walls were reported thrown down at Woburn (VII - VIII), but additional details are lacking. \n\nModerate earthquakes in 1847 (August 8), 1852 (November 27), 1854 (December 10), 1876 (September 21), 1880 (May 12), 1903 (January 21 and April 24), 1907 (October 15), 1925 (January 7 and April 24), 1940 (January 28), and 1963 (October 16 and 30), were felt over limited areas of eastern Massachusetts. The epicenter of the January 7, 1925, shock was off Cape Ann; the reported felt area extended from Providence, Rhode Island, to Kennebunk, Maine. The October 16, 1963, shock caused some plaster to fall at Sommerville; in addition a wall was reported cracked and stones fell from a building foundation (intensity VI). Dishes were broken and many persons were alarmed at Amesbury, and a window was cracked at Winthrop. The other earthquakes did not exceed intensity V. \n\nThe residents of Nantucket Island were jolted by a moderate earthquake on October 24, 1965. Very slight damage, mostly to ornaments, was reported. Doors, windows, and dishes rattled, and house timbers creaked.
234933
I can't think of any different, but been living here all my life in the bay area in Silicon Valley, Tri-Valley and the  Central Valley.  I like the Central Valley the best, because you don't really feel the Earthquake here.  What really puzzle me the most is high cost housing is in the wrong area because they are on the Earthquake foundations and all other areas in the east of the Bay Area is lower and little effects on Earthquakes.  My point is the Eastern side should cost more than the Western side of California because more safer from Earthquakes.  Any lands that is far side safer from earthquake shall be consider the highest in the house Market!  Funny the House Market should go back to school!
868837
Usually when it is hot an earthquake starts.
409645
Fort Tejon, California \n1857 01 09 16:24 UTC \nMagnitude 7.9\n\nThe magnitude of the Fort Tejon and San Fransisco earthquake are estimated to have been very similiar. Since you asked for the largest SOUTHERN California Earthquake though, the Fort Tejon one would be the corrrect answer.
541129
Depends on what intensity earthquakes you're talking about, but... according to the NEIC (National Earthquake Information Center), there were 42 earthquakes ranging in magnitude from 2.5 to 5.3 on the 24th of April, 2006.\nSee the first link below for a listing and their longitude and latitude, and the second link for a world map.  You can run your own searches if you want from http://neic.usgs.gov/neis/epic/epic_global.html.
856524
9.5 magnitude, Chile, 1960. Biggest since 1900, modern measures.\nhttp://earthquake.usgs.gov/regional/world/10_largest_world.php\n\nNo. Faults or potential faults would rupture before they could build up enough energy to have a magnitude 20 quake.  Maybe a huge meteor impact could cause such an earthquake. It hasn't happened in recorded history.
883081
“Earthquake prediction” in the popular language is consonant with short-term prediction.  Scientists are sure about where earthquakes will occur, and a general time span.  For example, I live in San Francisco, and we know that sometime in the next 30 years, there's going to be a big one.\n\nAt the present time, optimism is rather low about the prospects for short-term prediction, because of its local nature: one would have to be fortunate to have instruments within short range of the future focus of a strong earthquake.\n\nResearch into anomalies in the ratio of P- to S-wave velocities, magnetic fields, resistivity, tilt, emission of noble gases, and so on are no longer at the leading edge of contemporary interest.
403621
In a nutshell, their is no way to predict earthquakes because there are little to no warnings signs. For example in California, This is a transform fault where two plates are sliding past each other... Eventually the stress builds up so much that it moves a lot at one time.. This is what causes Earth Quakes there, and when they happen they are devastating... We just cant tell when the stress is so much that an earthquake is going to happen.. It is not possible and probably will never be.
274866
this site is the best\nhttp://earthquake.usgs.gov/learning/
870278
The first link provides current and historical information regarding the fault.  The second link is to the history channel's web site which contains a brief overview of the Mega Disaster's episode on a possible future fault movement.\n\nhttp://quake.ualr.edu/public/nmfz.htm\nhttp://www.history.com/minisite.do?content_type=Minisite_Episodes&content_type_id=1435&display_order=3&mini_id=1401
127553
Earthquakes are caused by the shifting of the Earth's tectonic plates. We don't get earthquakes like the West coast here on the east coast because there simply isn't as much shifting.
460543
Pretty much the entire city rests on the Hayward Fault Zone, so I'd say everywhere. Which isn't to say that the entire place will collapse due to Earthquakes, but it is on a fault line so there will be seismic activity.
765823
In terms of loss of human life the deadliest was on January 23rd 1556 in Shaanxi, China. It measured 8 on the richter scale. An estimated 830,000 people were killed during the quake.\n\nThe largest recorded earthquake occured in Chile in South America on May 22nd 1960. This earthquake was enormous at 9.5 of the richter scale. The epicenter of the earthquake (the point on the earth's surface directly above the focus of an earthquake) was 60 meters down below the ocean floor about 100 miles off the coast of Chile out in the Pacific. \n\nThe nearby towns of Valdivia and Puerto Montt suffered devastating damage because of their closeness to the center of such a massive quake. The loss of human life was not as bad as it could have been because there were large foreshocks that sent people into the streets. \n\nThe damage from the quake was not limited to the nearby shores of Chile. Enormous tsunamis caused by the quake, traveled for thousands of miles across the Pacific Ocean, reaching the shores of Hawaii, the Philippines, and even Japan devastating everything in their path.\n\nThe earthquake that occured on December 26 2004  was recorded as a 9.3 on the Richter scale which was just below what had occured in Chile. This one resulted in 275,000 deaths. \n\nHope this helped you out a little.
1094439
The largest event recorded was the Giles County earthquake in 1897. ... in Virginia\n\nLarge Earthquakes in the United States and the World \n\nPrince William Sound, Alaska \n1964 March 28 03:36:14 UTC (local time: March 27 05:36:14 p.m.) \nMagnitude 9.2 \n\nLargest Earthquake in Alaska \n\n\nIsoseismal Map \n\nDamage Photos: 1   2   3 \n\nSeismograms \n\nCommunity Internet Instensity Map \nThis great earthquake and ensuing tsunami took 125 lives (tsunami 110, earthquake 15), and caused about $311 million in property loss. Earthquake effects were heavy in many towns, including Anchorage, Chitina, Glennallen, Homer, Hope, Kasilof, Kenai, Kodiak, Moose Pass, Portage, Seldovia, Seward, Sterling, Valdez, Wasilla, and Whittier. \n\n \n\nAnchorage, about 120 kilometers northwest of the epicenter, sustained the most severe damage to property. About 30 blocks of dwellings and commercial buildings were damaged or destroyed in the downtown area. The J.C. Penny Company building was damaged beyond repair; the Four Seasons apartment building, a new six-story structure, collapsed; and many other multistory buildings were damaged heavily. The schools in Anchorage were almost devastated. The Government Hill Grade School, sitting astride a huge landslide, was almost a total loss. Anchorage High School and Denali Grade School were damaged severely. Duration of the shock was estimated at 3 minutes. \n\nLandslides in Anchorage caused heavy damage. Huge slides occurred in the downtown business section, at Government Hill, and at Turnagain Heights. The largest and most devastating landslide occurred at Turnagain Heights. An area of about 130 acres was devasted by displacements that broke the ground into many deranged blocks that were collapsed and tilted at all angles. This slide destroyed about 75 private houses. Water mains and gas, sewer, telephone, and electrical systems were disrupted throughout the area. \n\nThe earthquake was accompanied by vertical displacement over an area of about 520,000 square kilometers. The major area of uplift trended northeast from southern Kodiak Island to Price William Sound and trended east-west to the east of the sound. Vertical displacements ranged from about 11.5 meters of uplift to 2.3 meters of subsidence relative to sea level. Off the southwest end of Montague Island, there was absolute vertical displacement of about 13 - 15 meters. Uplift also occurred along the extreme southeast coast of Kodiak Island, Sitkalidak Island, and over part or all of Sitkinak Island. This zone of subsidence covered about 285,000 square kilometers, including the north and west parts of Prince William Sound, the west part of the Chugach Mountains, most of Kenai Peninsula, and almost all the Kodiak Island group. \n\nThis shock generated a tsunami that devasted many towns along the Gulf of Alaska, and left serious damage at Alberni and Port Alberni, Canada, along the West Coast of the United States (15 killed), and in Hawaii. The maximum wave height recorded was 67 meters at Valdez Inlet. Seiche action in rivers, lakes, bayous, and protected harbors and waterways along the Gulf Coast of Louisiana and Texas caused minor damage. It was also recorded on tide gages in Cuba and Puerto Rico. \n\nThis great earthquake was felt over a large area of Alaska and in parts of western Yukon Territory and British Columbia, Canada. \n\n  \n\nAbridged from Seismicity of the United States, 1568-1989 (Revised), by Carl W. Stover and Jerry L. Coffman, U.S. Geological Survey Professional Paper 1527, United States Government Printing Office, Washington: 1993. \n\n \nTravel times (in hours) are shown for the tsunamis produced by the 1960 Concepción, Chile, earthquake (purple curves) and by the 1964 Good Friday, Valdez (Anchorage), Alaska earthquake (red curves). The 1960 tsunamis killed 61 people and caused about $24 million in damage. \n\nAdditional Links \n\nThe Great Prince William Sound Earthquake of March 28, 1964 \n\nThe Great Alaska Earthquake of
1042660
There are pre-tremors associated with impending earthquakes in well defined regions.  However, these are seismic as well, and not associated with the atmosphere.  There is no one sign in the atmosphere, and certainly not three.