The San Andreas Fault
Map of where San Andreas fault, California is
external image san-andreas-fault-map.jpg
New Madrid Fault Line: The New Madrid fault line has recorded over 4000 earthquakes of various scales over the last four decades. Also referred to as the New Madrid Seismic Zone, this region is one of the most vulnerable region in the United States. Earthquakes in this region directly affect a range of states including Illinois, Missouri, Tennessee, Indiana etc.

Rampo Fault Line: The Rampo fault line runs over a distance of 187 miles, between the Appalachian Mountains and the Piedmont areas. Earthquakes in this fault line can have devastating effects on states like New York, New Jersey, and Pennsylvania.

Ridgefield Fault Line: One of the latest addition to the names of fault lines in the United States is the Ridgefield fault line. It is believed that the Ridgefield fault line was formed around 250 million years ago. An Earthquake in this zone can result in severe damage to Connecticut, and the surrounding regions.

Denali Fault Line: In Alaska, the Denali fault line spans across the state right through the Alaska range, before entering Canada. The trench formed by this fault is most often filled by glaciers. A look at the satellite image, and you will realize that this fault line looks like a man-made canal in the Alaskan range.

San Andreas Fault Line: Spanning across the state of California, from Cape Mendocino to the Mexican border, the San Andreas fault line divides the state in two halves. Running parallel to the coast of the United States, San Andreas fault is prone to a number of earthquakes, thus making this region quite active in terms of seismic movements.
Map of U.S. Earthquakes
external image map.gif
external image usa.gif

Earthquakes
Alaska 1964 = On March 27, 1964, at 5:36 p.m. ADT (03:36 3/28 UTC) a great earthquake of magnitude 9.2 (moment magnitude) occurred in Prince William Sound region of Alaska. The epicenter was about 10 km east of the mouth of College Fiord, approximately 90 km west of Valdez and 120 km east of Anchorage. The epicenter was located at Lat. 61.04N, Lon. 147.73W, at a depth of approximately 25 km. This earthquake is the second largest earthquake ever recorded in the world. after a M9.5 earthquake in Chile in 1960. The duration of rupture lasted approximately 4 minutes (240 seconds).

California 1989= The Loma Prieta earthquake, also known as the Quake of '89 and the World Series Earthquake,[4[[http://en.wikipedia.org/wiki/1989_Loma_Prieta_earthquake#cite_note-SFGate1999-3|]]] was a major earthquake that struck the San Francisco Bay Area of California on October 17, 1989, at 5:04 p.m. local time. Caused by a slip along the San Andreas Fault, the quake lasted 10–15 seconds[1[[http://en.wikipedia.org/wiki/1989_Loma_Prieta_earthquake#cite_note-SanAndreasFault-0|]]] and measured 6.9 on the moment magnitude scale[5[[http://en.wikipedia.org/wiki/1989_Loma_Prieta_earthquake#cite_note-4|]]] (surface-wave magnitude 7.1) or 6.9 on the open-ended Richter Scale.[1
China 2005 = The 2005 Kashmir earthquake was a major earthquake centered in Pakistan-administered Kashmir known as Azad Kashmir, near the city of Muzaffarabad, affecting Gilgit-Baltistan and Khyber Pakhtunkhwa province of Pakistan. It occurred at 08:52:37 Pakistan Standard Time (03:52:37 GMT) on 8 October 2005. It registered a moment magnitude of 7.6 making it similar in size to the 1906 San Francisco earthquake, the 1935 Quetta earthquake, the 2001 Gujarat earthquake, and the 2009 Sumatra earthquakes. As of 8 November, the government of Pakistan's official death toll was 75,000. The earthquake also affected countries in the surrounding region where tremors were felt in Tajikistan and western China, while officials say nearly 1,400 people also died in Indian-administered Kashmir and four people in Afghanistan. The severity of the damage caused by the earthquake is attributed to severe upthrust, coupled with poor construction.

Japan 2010 = The Great Hanshin earthquake, or Kobe earthquake, was an earthquake that occurred on Tuesday, January 17, 1995, at 05:46 JST (January 16 at 20:46 UTC) in the southern part of Hyōgo Prefecture, Japan. It measured 6.8 on the moment magnitude scale (USGS),[1[[http://en.wikipedia.org/wiki/Great_Hanshin_earthquake#cite_note-USGS-Stat-0|]]] and Mj7.3 (adjusted from 7.2) on JMA magnitude scale.[2[[http://en.wikipedia.org/wiki/Great_Hanshin_earthquake#cite_note-Kobe.40en-1|]]] The tremors lasted for approximately 20 seconds. The focus of the earthquake was located 16 km beneath its epicenter,[2on the northern end of Awaji Island, 20 km away from the city of Kobe.
Approximately 6,434 people lost their lives (final estimate as of December 22, 2005); about 4,600 of them were from Kobe.[3[[http://en.wikipedia.org/wiki/Great_Hanshin_earthquake#cite_note-2|]]] Among major cities, Kobe, with its population of 1.5 million, was the closest to the epicenter and hit by the strongest tremors. This was Japan's worst earthquake in the 20th century after the Great Kantō earthquake in 1923, which claimed 140,000 lives. It caused approximately ten trillion yen ($100 billion) in damage, 2.5% of Japan's GDP at the time.