Earthquake causes sewer to collapse.  The biggest earthquake ever recored was in Deerfield, Kansas. An earthquake is the shaking of the ground caused by an abrupt shift of rock along a fracture in the Earth, called a fault. Within seconds, an earthquake releases stress that has slowly accumulated within the rock, sometimes over hundreds of years. Says CVO website (www.CVO.com) . Magnitude is a measure of the amount of energy released during an earthquake, and you've probably heard news reports about earthquake magnitudes measured using the Richter scale. The Richter scale was invented, logically enough, in the 1930s by Dr. Charles Richter, a seismologist at the California Institute of Technology.  Says New Mexico Bureau of geology and mineral Resources.

 

 

picture of charles richter and the first model of the richter scale. this is a picture of a earthquake in the ocean.this is a picture of 2006 JAC weekly DVOA performence.

 

 

 

 

 

 

 

 

 

 

 

this shows the magnitude of earthquakes on the coast of colmbia and where earthquakes mostly occur.

 

 

 

 

 

 

 

 

 

 

This is a 24-hour long seismic record.
Time progress left to right and from top to bottom, just like text on a printed page.
Each line is 15 minutes long.
The hour marks are visible as a vertical stripe parallel to the left edge of the record.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

This great earthquake and ensuing tsunami took 128 lives (tsunami 113, 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.

 

 

Anchorage, 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.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The 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.

 

 

 

 

 

Five-story J.C. Penney Building, 5th Avenue and Downing Street, Anchorage, Alaska, partly collapsed by the March 28, 1964 earthquake. Note undamaged buildings nearby.

 

 

 

 

 

Landslide and slumping effects in the Turnagain Heights area, Anchorage, Alaska, caused by the March 28, 1964, earthquake.

 

 

 

 

 

This 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.

This great earthquake was felt over a large area of Alaska and in parts of western Yukon Territory and British Columbia, Canada.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 this  is a picture of what happend after a earthquake happend.

 

 

 

 

 

 

 

 

 

 

 

 

 this is a picture of the san andreas fault. One of the words most active fault line in the world this is in California.