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EarthWord–Hazard

EarthWord–Hazard

It’s not just something you run into on a golf course-it’s this week’s EarthWord!

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The USGS ShakeCast System

The USGS ShakeCast System

Early on the morning of August 24, 2014, Loren Turner was awoken by clattering window blinds, a moving bed, and the sound of water splashing out of...

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Hazard a Guess? The riskiest science quiz you will ever take!

Hazard a Guess? The riskiest science quiz you will ever take!

Which U.S. State or territory has more large earthquakes than the rest of the United States combined?

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Enormous Caribbean Waves Before 1492

Enormous Caribbean Waves Before 1492

Geologists have discovered evidence that unusual seas detached living corals from a Caribbean reef and scattered them far inland, as boulders, during...

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A Fresh Look at Old Data Sheds Light on Central U.S. Quake Origins and Potential

A Fresh Look at Old Data Sheds Light on Central U.S. Quake Origins and Potential

Small variations in the density of the earth’s crust—undetectable to humans without sensitive instruments—influence where earthquakes may occur in the...

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Community Announcement: USGS Ground Motion Study in the Walnut Creek/Concord Area Looking for Volunteers

Community Announcement: USGS Ground Motion Study in the Walnut Creek/Concord Area Looking for Volunteers

The U. S. Geological Survey is seeking volunteers to host temporary seismic stations in the Walnut Creek/Pleasant Hill/Concord California area...

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Hazard a Guess? The riskiest science quiz you will ever take!

Hazard a Guess? The riskiest science quiz you will ever take!

What is causing most of the induced earthquakes (aka man-made earthquakes) we’ve seen recently in the central United States?

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Some Early 20th Century Earthquakes in Los Angeles Area Might Have Been Man-Made

Some Early 20th Century Earthquakes in Los Angeles Area Might Have Been Man-Made

A new study from the USGS suggests that some early 20th century earthquakes in southern California might have been induced (man-made) by past...

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Magnitude 6.6 Earthquake in Italy

Magnitude 6.6 Earthquake in Italy

A magnitude 6.6 earthquake struck Italy on October 30, 2016 at 06:40:19 UTC (7:40 am local time). This is reportedly the largest earthquake in Italy...

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Magnitude 6.1 and 5.5 Italy Earthquakes

Magnitude 6.1 and 5.5 Italy Earthquakes

A magnitude 6.1 earthquake struck Italy on October 26, 2016 at 19:18:08 UTC (9:18 pm local). A magnitude 5.5 earthquake struck earlier at 17:10:37 UTC...

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Wastewater Disposal Likely Induced February 2016 Magnitude 5.1 Oklahoma Earthquake

Wastewater Disposal Likely Induced February 2016 Magnitude 5.1 Oklahoma Earthquake

Distant wastewater disposal wells likely induced the third largest earthquake in recent Oklahoma record, the Feb. 13, 2016, magnitude 5.1 event...

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Hazard a Guess? The riskiest science quiz you will ever take!

Hazard a Guess? The riskiest science quiz you will ever take!

True or false? The same size earthquake will cause damage over a larger area in the West than the East.

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