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Topic: Earthquake

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In the News (Wed 17 Apr 19)

  USGS Earthquake Hazards Program-Northern California
For California earthquakes of Magnitude 3.5 and larger.
Earthquake basics and educational material; geological and historical information; links to professional and amateur organizations; online access to earthquake data.
Earthquakes in the news, special events and research developments of particular or topical interest.
quake.wr.usgs.gov   (277 words)

  Earthquake Facts & Follies
An earthquake is the sudden, sometimes violent movement of the earth's surface from the release of energy in the earth's crust.
Earthquake detectors are mentioned later in oriental manuscripts, but in the west earthquake detection instruments did not emerge until centuries later.
Earthquakes may occur in an area before, during, and after a volcanic eruption, but they are the result of the active forces connected with the eruption, and not the cause of volcanic activity.
www.ceri.memphis.edu /public/follies.shtml   (1898 words)

  Earthquake - MSN Encarta
Earthquake, shaking of the Earth’s surface caused by rapid movement of the Earth’s rocky outer layer.
Seismologists examine the parts of an earthquake, such as what happens to the Earth’s surface during an earthquake, how the energy of an earthquake moves from inside the Earth to the surface, how this energy causes damage, and the slip of the fault that causes the earthquake.
The properties of an earthquake depend strongly on the type of fault slip, or movement along the fault, that causes the earthquake.
encarta.msn.com /encyclopedia_761571674/Earthquake.html   (824 words)

 Earthquake - Wikipedia, the free encyclopedia
Earthquakes occurring at boundaries of tectonic plates are called interplate earthquakes, while the less frequent events that occur in the interior of the lithospheric plates are called intraplate earthquakes.
Earthquakes may also occur in volcanic regions and are caused by the movement of magma in volcanoes.
Earthquakes have also been known to be caused by the removal of natural gas from subsurface deposits, for instance in the northern Netherlands.
en.wikipedia.org /wiki/Earthquake   (2927 words)

 2004 Indian Ocean earthquake - Wikipedia, the free encyclopedia
The 2004 Indian Ocean earthquake, known by the scientific community as the Sumatra-Andaman earthquake, was an undersea earthquake that occurred at 00:58:53 UTC (07:58:53 local time) December 26, 2004, with an epicentre off the west coast of Sumatra, Indonesia.
The earthquake is estimated to have resulted in an oscillation of the Earth's surface of about 20–30 cm (8–12 in), equivalent to the effect of the tidal forces caused by the Sun and Moon.
The deadliest earthquakes since 1900 were the Tangshan, China earthquake of 1976, in which at least 255,000 were killed; the earthquake of 1927 in Xining, Qinghai, China (200,000); the Great Kanto earthquake which struck Tokyo in 1923 (143,000); and the Gansu, China, earthquake of 1920 (200,000).
en.wikipedia.org /wiki/2004_Indian_Ocean_earthquake   (6744 words)

 Earthquakes in Turkey - All About Turkey
Earthquakes on the North Anatolian fault are caused by the northwards motion of the Arabian plate against the Eurasian plate, squeezing the small Turkish micro plate westwards.
The small Turkish micro plate is bounded on the east by the East Anatolian fault zone (EAFZ), on the north by the North Anatolian fault zone (NAFZ), on the west by a diffuse zone of deformation surrounding the greater Aegean region, and on the south by the Hellenic and Cyprus arcs.
The magnitude of an earthquake is determined from the logarithm of the amplitude of waves recorded by seismographs.
www.allaboutturkey.com /deprem.htm   (1976 words)

 Earthquake - Simple English Wikipedia
An earthquake is a sudden shaking of the earth.
Earthquakes can cause great destruction if the magnitude is strong.
After the January 17, 1995 Kobe earthquake in Japan, preventative measures were put in place to further enhance the safety measures that were already in place.
simple.wikipedia.org /wiki/Earthquake   (336 words)

Earthquakes were rare in the area prior to construction of the dam, but seismographs registered at least 600 shallow-focus earthquakes between 1936 and 1946.
After studying the worldwide distribution of earthquakes, the pattern of earthquake types, and the movement of the earth's rocky crust, scientists proposed that plate tectonics, or the shifting of the plates as they move over another weaker rocky layer, was the main underlying cause of earthquakes.
Earthquakes that occur in the area surrounding the Pacific Ocean, at the edges of the Pacific plate, are responsible for an average of 80 percent of the energy released in earthquakes worldwide.
autocww.colorado.edu /~blackmon/E64ContentFiles/EarthSciences/Earthquake.html   (5494 words)

 1906 San Francisco Earthquake Encyclopedia Article @ AlienArtifacts.com (Alien Artifacts)   (Site not responding. Last check: )
The earthquake and resulting fire would be remembered as one of the worst natural disasters in the history of the United States, comparable in devastation to the Galveston Hurricane of 1900 and Hurricane Katrina in 2005.
The earthquake was the first natural disaster of its magnitude to be documented by photography and motion picture footage.
After the earthquake, she immediately rushed to the heavily damaged Academy of Sciences building on Market Street, and climbed metal railings of collapsed staircases to reach the herbarium on the sixth floor.
www.alienartifacts.com /encyclopedia/1906_San_Francisco_earthquake   (3034 words)

 Earthquake!   (Site not responding. Last check: )
An earthquake is the shaking of the earth caused by pieces of the crust of the Earth that suddenly shift.
Earthquake waves are the shock waves created at the focus of an earthquake and sent out in all directions through the earth.
Earthquakes are happening every day somewhere in the world, and each of these quakes send out seismic waves in all directions-- outward along the surface of the earth and downward into the middle of the earth.
cse.ssl.berkeley.edu /lessons/indiv/davis/inprogress/QuakesEng3.html   (2517 words)

 Savage Earth: Restless Planet
Most earthquakes happen near the boundaries of tectonic plates, both where the plates spread apart and where they crunch or grind together (although large temblors also strike from time to time in the normally stable interior of continents).
The fault that let loose the 1994 Northridge earthquake was a dip-slip fault, at which a block of crust slid up the shallow ramp of another.
The calculation of Richter magnitude is based on the maximum strength of the vibrations (measured by a seismograph) and the distance of the instrument from the epicenter of the earthquake.
www.pbs.org /wnet/savageearth/earthquakes   (1193 words)

 Good Friday Earthquake Encyclopedia Article @ HandOverFist.com (Hand Over Fist)   (Site not responding. Last check: )
The magnitude 9.2 earthquake, which resulted in 131 deaths, was centered in Prince William Sound off the coast of South Central Alaska.
The powerful earthquake also caused some parts of Alaska to be liquefied, causing much damage to property and leading to landslides.
131 people were killed as a result of the earthquake: nine in the earthquake itself, 115 from tsunamis in Alaska, and 16 from tsunamis in Oregon and California.
handoverfist.com /encyclopedia/Good_Friday_Earthquake   (740 words)

 FEMA: Earthquake
One of the most frightening and destructive phenomena of nature is a severe earthquake and its terrible aftereffects.
Earthquakes strike suddenly, violently, and without warning at any time of the day or night.
Although there are no guarantees of safety during an earthquake, identifying potential hazards ahead of time and advance planning can save lives and significantly reduce injuries and property damage.
www.fema.gov /hazard/earthquake/index.shtm   (103 words)

I am told that Ian Hacking has claimed that an earthquake is not an event.
Be that as it may, at least one is. (4) It is a recording originally released on the Imperial label, made in a studio in July 1952 in Houston, Texas, and featuring a tenor saxophone played by Joe Houston, backed by Marian McKinley (piano), Robert Gray (bass) and Robert Byrd (drums).
“Earthquake” began its existence in 1996 as a conference presentation; and I am grateful to Ian Buchanan for the opportunity to present the original paper at the Deleuze Symposium which he organised as well as to the people who heard and commented on it at that time (above the din of the recording).
www.sensesofcinema.com /contents/02/21/sd_earthquake.html   (3227 words)

 Earthquake (WebBible Encyclopedia) - ChristianAnswers.Net
The first earthquake in Palestine of which we have any specific record happened in the reign of Ahab (1 Kings 19:11,12), although the fall of the great wall of Jericho may have also involved an earthquake.
An earthquake at Philippi shook the prison in which Paul and Silas were imprisoned (Act 16:26).
Earthquakes are also mentioned in connection with the presence of the Lord (Judg.
www.christiananswers.net /dictionary/earthquake.html   (129 words)

 Historical Depictions of the 1755 Lisbon Earthquake   (Site not responding. Last check: )
Although not the strongest or most deadly earthquake in human history, the 1755 Lisbon earthquake's impact, not only on Portugal but on all of Europe, was profound and lasting.
The earthquake began at 9:30 on November 1st, 1755, and was centered in the Atlantic Ocean, about 200 km WSW of Cape St. Vincent.
Depictions of the Lisbon earthquake were created, copied, and widely distributed and discussed throughout all of southern, western and central Europe.
nisee.berkeley.edu /lisbon   (2535 words)

 Virtual Museum of the City of San Francisco - 1906 Earthquake and Fire
In response to repeated requests through our website we are setting out to compile a new and more accurate account of those affected by the 1906 earthquake.
U.S. Army Operations During the Earthquake and Fire
U.S. Navy Operations During the Earthquake and Fire
www.sfmuseum.org /1906/06.html   (139 words)

 Facts About Earthquake Insurance
Although an earthquake is the first thing that comes to mind when someone mentions earth movement, this very broad category also includes landslide, mudslide, mudflow, sinkhole or any other movement that involves the sinking, rising or shifting of earth.
An earthquake endorsement generally excludes damages or losses from floods and tidal waves – even when caused or compounded by an earthquake.
Broken glass on the floor accounts for many of the injuries suffered in the aftermath of an earthquake, and glass-filled carpet is hazardous long after the danger posed by the quake has passed.
www.insurance.wa.gov /factsheets/factsheet_detail.asp?FctShtRcdNum=20   (939 words)

 Gujarat Earthquake of January 26, 2001   (Site not responding. Last check: )
The Gujarat earthquake of January 26, 2001 generated intense shaking which was felt by about 70 % people of India.
Such observations conclude that this earthquake was associated with significant component of vertical force.
The routine measurements of IRS P4 OCM data is needed which may give some indication of the building of the stresses inside the Earth due to upwelling of the ocean.
home.iitk.ac.in /~ramesh/gujrat/gujarat.htm   (1607 words)

 FEMA For Kids: Disaster Connection - Kids to Kids
Earthquakes can be felt over large areas although they usually last less than one minute.
A survivor of the 1906 earthquake in San Francisco said the sensation was like riding a bicycle down a long flight of stairs.
A magnitude 6.0 earthquake is considered strong and a magnitude 7.0 is a major earthquake.
www.fema.gov /kids/quake.htm   (219 words)

 Howstuffworks "How Earthquakes Work"
But the majority of naturally-occurring earthquakes are caused by movements of the earth's plates, as we'll see in the next section.
We only hear about earthquakes in the news every once in a while, but they are actually an everyday occurrence on our planet.
Earthquakes have caused a great deal of property damage over the years, and they have claimed many lives.
science.howstuffworks.com /earthquake.htm   (470 words)

 CNN.com - 6.0 quake in Gulf shakes Southeast - Sep 11, 2006
The earthquake occurred at a depth of 6.2 miles, the USGS said.
About an hour after the earthquake, 904 people from 365 separate ZIP codes in the Southeast had filed online reports to the USGS that they had felt the quake.
A powerful earthquake struck Japan on Sunday, killing at least one person and injuring 160 others as it damaged buildings and triggered a small tsunami alon...
www.cnn.com /2006/TECH/science/09/10/gulf.quake/index.html   (277 words)

 CISN: 2004 Parkfield Earthquake
Sept 28: This earthquake is the anticipated Mw 6.0 on the San Andreas fault.
This earthquake occurred at 10:15 AM PDT on September 28, 2004 had a hypocenter of 35 degrees, 49 minutes north, 120 degrees 22 minutes west, and a depth of 8 km or 5 miles.
Today's earthquake is the seventh in a series of repeating earthquakes on this stretch of the fault.
www.cisn.org /special/evt.04.09.28   (789 words)

earthquake - earthquake, trembling or shaking movement of the earth's surface.
Earthquake failure of reinforced concrete buildings: the case of the 1999 earthquakes in Turkey.
Connecting earthquakes and violins: investigations illustrate stick-slip frictional motion as a common thread.
www.infoplease.com /ipa/A0001767.html   (184 words)

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