News tagged with volcanic activity

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Image: Carbon dioxide on the rise

(PhysOrg.com) -- The SCIAMACHY sensor on ESA?s Envisat satellite has provided scientists with invaluable data on our planet, allowing them to map global air pollution and the distribution of greenhouse gases.

Jun 28, 2010 3.7 / 5 (18) 34

Image: Volcanic uplift

(PhysOrg.com) -- This Envisat Advanced Synthetic Aperture Radar interferogram over the Kenyan section of the Great Rift Valley shows small surface displacements that are not visible to the naked eye of the ...

Jul 02, 2010 4.5 / 5 (6) 0

Earthquake waves: How do they spread?

Propagation of earthquake waves within the Earth is not uniform. Experiments indicate that the velocity of shear waves (s-waves) in Earth’s lower mantle between 660 and 2900 km depth is strongly dependent on the orientation ...

Apr 13, 2009 3.7 / 5 (3) 0