lithosphere

Listen Current: Oklahoma Earthquakes

Listen Current

From Listen Current, 12/09/2015  --  Oklahoma has experienced more than 5,000 earthquakes this year. Some scientists tie these earthquakes to fracking, the extraction of oil and gas from deep within the earth. Fracking uses water to extract the oil and gas and is then injected into underground wells for storage. This can put pressure on faults and cause them to slip and trigger an earthquake. After inspections were ordered, state regulators shut down the water disposal wells, which slowed the earthquakes. But once the wells came back online the earthquakes started again.

EARTH Magazine: Narratives from Nepal: Relief and Rebuilding after the Gorkha Earthquake

EARTH Magazine

From EARTH Magazine, 12/11/2015  --  Next week at the American Geophysical Union Fall Meeting, geoscientists will be meeting to discuss findings from the April 2015 Gorkha Earthquake, which devastated Nepal and killed approximately 8,900 people. EARTH Magazine brings you a special feature that describes how initial data informed relief efforts and a community ranging from mountaineers to geophysicists to engineers is helping Nepal rebuild.

Teachable Moment from IRIS - Magnitude 7.2 Tajikistan

IRIS

12/07/2015  --  IRIS does an excellent job collecting and preparing resources we can use in our classrooms on recent, significant earthquakes. Check out their PowerPoint, visualizations and animations on a 7.2-magnitude earthquake that has occurred in Tajikistan in a sparsely populated area approximately 349km (217mi) E of the capital Dushanbe.  This earthquake shook buildings in cities in Afghanistan, Pakistan and India.

IRIS page: http://www.iris.edu/hq/retm/3880

Teachable Moment from IRIS - Magnitude 7.1 SE Indian Ridge

IRIS

12/04/2015  --  IRIS does an excellent job collecting and preparing resources we can use in our classrooms on recent, significant earthquakes. Check out their PowerPoint, visualizations and animations on an unusual 7.1 magnitude earthquake struck in the southern Indian Ocean approximately 1022km (635 mi) ENE of Heard Island and McDonald Islands.  

IRIS page: http://www.iris.edu/hq/retm/3876

EARTH Magazine: Isotopes Could Reveal Ancient American Turquoise Trade

EARTH Magazine

From EARTH Magazine, 11/30/2015  --  A new study from geoscience researchers has important implications for studies of Mesoamerica and North America prior to the arrival of European settlers. Using isotope geochemistry, scientists at Pennsylvania's Dickenson College and the University of Arizona are trying to identify if turquoise mineral specimens record the signature of their parent ore deposits.

Teachable Moment from IRIS - Two Magnitude 7.6 Peru

IRIS

11/24/2015  --  IRIS does an excellent job collecting and preparing resources we can use in our classrooms on recent, significant earthquakes. Check out their PowerPoint, visualizations and animations on the two deep 7.6 magnitude earthquakes that have shaken a sparsely populated jungle region near the Peru-Brazil border in southeast Peru. There were no immediate reports of injuries or damage.

IRIS page: http://www.iris.edu/hq/retm/3865 

Teachable Moment from IRIS - Magnitude 7.0 Solomon Islands

IRIS

11/18/2015  --  IRIS does an excellent job collecting and preparing resources we can use in our classrooms on recent, significant earthquakes. Check out their PowerPoint, visualizations and animations on the 7.0 magnitude earthquake that struck offshore in the Solomon Islands. The earthquake occurred 178 km (111 mi) WNW of Honiara, Solomon Islands at a depth of 13.4 km (8.3 mi), according to the US Geological Survey.

IRIS page: http://www.iris.edu/hq/retm/3859

Teachable Moment from IRIS - Magnitude 7.5 Afghanistan

IRIS

10/26/2015  --  IRIS does an excellent job collecting and preparing resources we can use in our classrooms on recent, significant earthquakes. Check out their PowerPoint, visualizations and animations on the magnitude 7.5 earthquake that occurred in the Hindu Kush mountains, in the sparsely populated province of Badakhshan, Afghanistan which borders Pakistan, Tajikistan and China. 

IRIS page: http://www.iris.edu/hq/retm/3779

EARTH Magazine: Finding and Tracking Conflict Minerals in the Heart of Darkness

EARTH Magazine

From EARTH Magazine, 10/21/2015  --  What's the origin of the smartphone you're holding or the tablet from which you are reading this? They're made from minerals such as tin, tantalum and tungsten - minerals that aren't found in many places in the world. One place they are found in relative abundance is the Democratic Republic of the Congo (DRC), where these minerals have been fueling militias in an ongoing war for the last 25 years.

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