The Gaia Update is a (almost) weekly short news podcast on what the earth has been up to. It focuses on the three big natural disaster types: Earthquakes, Volcanoes and Tsunamis, but also highlights other geology and earth science related news and research.
This is a special two topic episode covering the ongoing volcanic unrest at Bardarbunga in Iceland, and the M6.0 earthquake outside of Napa California.
IMO updates are found on their website
M6.0 Napa, CA Earthquake
sources: USGS earthquake page
Another fun piece of information that came out is from Jawbone.