Geology - page 2

San_Andreas

Study reveals how dust inside faults may contribute to earthquakes

A new study looks at how powdery material inside faults may contribute to earthquakes. According to geologist Ze'ev Reches of the University of Oklahoma in Norman, US, the gradual buildup of stress in a fault as plates collide or slide past each other is

July 18, 2013

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Large, distant earthquakes may cause smaller quakes at U.S. drilling sites

From the late 1960s until 2000, there were only 21 earthquakes a year with a magnitude greater than 3 in central and eastern United States. But from 2010-2012, the region experienced over 300. In a paper in Science, researchers think they may have

July 13, 2013

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Touring the ocean bottom - Visualization of our planet without water features

The ocean is the most prominent feature on Earth, and of immeasurable importance to life on the planet. But what would it look like if all of the water was drained out of it?  Though ships have mapped only a small portion of the ocean floor, satellites are used

June 22, 2013

Old Faithful

Old Faithful's hidden cavern discovered

A new study of the Yellowstone National Park geyser shows that the underground plumbing of the Old Faithful looks like a bagpipe. Scientists report, in study published online March 30, 2013 in the journal Geophysical Research Letters, that a big chamber is

April 23, 2013

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New study could rewrite history of Auckland's volcanic field

A new study released in the Journal of Volcanology and Geothermal Research suggests that Rangitoto, a monogenetic shield volcano near Auckland, New Zealand, and other volcanoes in the Auckland Field might have been more active during the last few thousand years than

April 16, 2013

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Ancient micro-continent found under the Indian Ocean

Scientists at the University of Liverpool have found evidence of an ancient micro-continent buried beneath the Indian Ocean which formed in the last 16 millions years. This ancient precambrian continent, named Mauritia, extends more than 1500 km in length from the

March 05, 2013

An Iceberg off the west Antarctic

How thick is the crust beneath Antarctica?

A giant ice cap up to 3,800 meters (2,36 miles ) thick covers about 99 % of the Antarctic continent, and under the layer of frozen water lays continental crust. Researchers  analyzed seismic data from the South pole to create a new most detailed map showing the

January 29, 2013

Tumbi Quarry landslide

Safeland project - Landslide reports

The EU-funded Safeland Project is a very large, multi-institution research programme designed to develop generic quantitative risk assessment and management tools and strategies for landslides at local, regional, European and societal scales and establish the

November 20, 2012

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Louisiana sinkhole - Crude oil in cavern and sinkhole being removed, evacuation order remains

Texas Brine Co. of Houston began removing crude oil trapped in a failed company salt cavern inside the Napoleonville Dome in northern Assumption Parish, company and government officials said on Wednesday, October 17, 2012. The state Office of Conservation approved

October 17, 2012

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Aeromagnetic survey of Long Valley and Mono Basin volcanic areas announced

USGS volcanologists and geophysicists plan to conduct the first comprehensive, high-resolution airborne magnetic survey of the rock layers under Mono Basin and Long Valley, on the east side of the Sierra Nevada in California next week.Residents and visitors should

October 15, 2012

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New official image of Louisiana sinkhole shows significant growth - heavy odour reported

An new official map of the Louisiana sinkhole dimensions was uploaded to the Assumption Parish website on October 14, 2012:Red Line: August 19, 2012Green Line: September 21, 2012Blue Line: October 14, 2012Yellow line is oil boomThe original image can be

October 15, 2012

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The "Sombrero uplift" - ground deformation detected in Altiplano–Puna volcanic province

In a study published today, October 12, 2012 in Science, scientists used radar data from the ESA's ERS and Envisat missions to study an unusual uplift near the Uturuncu volcano, which had been dormant for 270 000 years.Authors of the study led by Yuri Fialko have

October 12, 2012

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Is Earth undergoing a true polar wander?

Scientist claim that true polar wander is happening now. True polar wander is a solid-body rotation of a planet with respect to its spin axis, causing the geographic locations of the North and South Poles to change, or

October 06, 2012

Andes

Open-source archive of active faults for northwest South America

The article titled "Open-source archive of active faults for northwest South America," by Gabriel Veloza and colleagues  introduces the "Active Tectonics of the Andes Database". It should provide more data to more geoscientists. Their work includes the locations and

October 03, 2012

F5

“Global patterns of loss of life from landslides” by prof. Dave Petley (free download)

Dave Petley is the Wilson Professor of Hazard and Risk in the Department of Geography at Durham University in the UK. His blog provides a commentary on landslide events occurring worldwide, including the landslides themselves, latest research, and conferences and

October 01, 2012

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Santorini volcanic island have risen 14 cm since January 2011

Scientists have discovered that the Greek Santorini island group has been inflating, slowly rising and moving outward, around a point just north of the Kameni islands. Despite being dormant for over half a century, satellites have detected slight

September 11, 2012

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Earth 100 million years from now (video)

Earth's landmasses were not always what they are today. Continents formed as Earth's crustal plates shifted and collided over long periods of time. This video shows how today's continents are thought to have evolved over the last 600 million years, and where they'll

September 06, 2012