Topic: U.S. Geological Survey
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San Francisco earthquake: Second quake jolts Bay Area
San Francisco earthquake: Thursday night's quake came nearly six hours after a magnitude 4.0 earthquake hit in the same area.
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San Francisco earthquake: second quake hits almost exactly 22 years after quake of '89
San Francisco earthquake strikes again: a second earthquake struck San Francisco just six hours after the first. Both quakes occured almost 22 year to the day after the deadly Loma Prieta earthquake of 1989.
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Bali earthquake rattles, but does little substantial damage
Today's 6.1-magnitude Bali earthquake caused no deaths and only minor injuries, in part because of the better development standards the tourist industry has pushed, say observers.
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Guatemalans spend a night on watch, after six earthquakes hit in single day
Six earthquakes hit the tiny Central American nation of Guatemala Monday, killing at least three people.
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Alaska earthquake, magnitude 6.8 prompts brief tsunami warning
Alaska earthquake: The tsunami warning was canceled after only a small wave was recorded in the community of Atka, Alaska.
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Alaska earthquake: 7.1-magnitude quake strikes off Alaska
Alaska earthquake: A 7.1-magnitude quake struck Friday in the Aleutian Islands off Alaska, prompting a tsunami warning.
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Los Angeles gets shaken with 4.2-magnitude earthquake
A 4.2-magnitude earthquake rumbled across Los Angeles Thursday but there are no early reports of damage.
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Hurricane Irene by the numbers: state by state damage reports
Federal officials began to survey the damage caused by hurricane Irene – from continued power outages to communities still stranded by floodwaters.
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Hurricane Irene carries threat of inland floods, not just coastal surge (VIDEO)
Hurricane Irene continued on a path early Friday to lash much of the East Coast – and not just coastal areas. Inland areas of the mid-Atlantic and New England are at risk of flash floods.
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Three earthquakes in three days. More than coincidence?
First came an earthquake in Colorado. Then Virginia's quake shook the US from South Carolina to New England. Finally, San Francisco had a rattler as well. Are they connected?
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Strong earthquake hits northern Peru
Peru earthquake: The US Geological Survey reports that a quake with a preliminary magnitude of 6.8 has occurred in northern Peru, near the Brazilian border.
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East Coast earthquake: How does a 5.9 temblor happen in Virginia?
Fault lines in the East are not as apparent or as active as in the West, but certain stresses can lead to a rupture. Tuesday's East Coast Earthquake was the biggest in 100 years.
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Virginia quake shakes up Washington, New York City
Virginia quake: A 5.9 magnitude earthquake shook much of Washington, D.C. and was felt as far north as Rhode Island and New York City.
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Colorado earthquake is largest in four decades
Colorado earthquake: A magnitude 5.3 earthquake shook the state late Monday, with an epicenter about 180 miles south of Denver, Colorado.
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Opinion: Drilling for oil in Arctic Ocean is fraught with danger
This month the US approved four wells for drilling by Shell Oil in the Arctic Ocean off Alaska, an energy frontier. But Shell's plan to recover after an oil spill is completely inadequate, given the region's remoteness and weather.
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Asian carp: DNA evidence finds something fishy near Lake Michigan
The failure of a recent expedition to find any invasive Asian carp near Lake Michigan – though DNA traces say they are there – has shipping interests claiming victory and others calling foul.
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From gold rush to gold standard: history's filigree
A timeline of the precious metal's effects on the world – from gold rush to gold standard.
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Common politics muddy waters in rare earth discovery
After a Japanese researchers found rare earths near Hawaii, some are questioning the timing of the announcement
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New Zealand earthquake produces local tsunami warning
New Zealand earthquake early Thursday morning local time is magnitude 7.8. The New Zealand earthquake rattled the country's remote Kermadec Islands.
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Japan earthquake: magnitude 6.7 aftershock rocks Honshu
Japan earthquake: The magnitude 6.7 quake is the 75th aftershock of at least magnitude 6.0 following the devastating March earthquake in Japan.
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The new water wars? Study shows broad decline in Rockies snowpack.
Many studies have documented the West's declining snowpack. But a new one, published Friday in the journal Science, covers the length of the Rockies over an 800-year period.
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How Mississippi River floods could save Louisiana's sinking coasts
Before the current levee system was built, Mississippi River floods helped replenish Louisiana coastal wetlands with silt. Now that silt goes into the Gulf and the coastline is disappearing. But scientists have a plan, and the great flood of 2011 could help them bring it about.
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Spain earthquake leaves ancient city perilously fragile
Spain earthquake: Two earthquakes that hit Lorca, Spain, Wednesday evening killed at least 9 people and injured hundreds. Thousands have been left homeless.
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![Spain earthquake: How a small quake caused so much damage [VIDEO]](/var/archive/storage/images/media/images/0510-spain-earthquake/10085360-1-eng-US/0510-spain-earthquake_thumbnail_90.jpg)
Spain earthquake: How a small quake caused so much damage [VIDEO]
Spain earthquake: The quakes that struck Spain Wednesday were seismically mild, but they occurred close to the surface, geologists say.
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Spain earthquake: 2 temblors kill 10, injure dozens Wednesday
Spain earthquake: a pair of deadly temblors hit southeast Spain on Wednesday. The initial Spain earthquake and subsequent temblor caused major damage in the town of Lorca.
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