Tag Archives: California

Oroville Dam: Water and Weather, Engineering and Erosion at the Nation’s Tallest Dam

Posted on February 13, 2017 by Anne Jefferson

California is having a very wet winter, with multiple atmospheric rivers dumping feet of precipitation in the mountains. Oroville Dam on the Feather River, is the nation’s tallest dam, is facing serious engineering challenges. This Storify has some of the best links to a rapidly evolving situation. Continue reading →

Categories: by Anne, geohazards, hydrology

The Napa Valley quake, and why California is (geologically) not part of America at all.

Posted on August 25, 2014 by Chris Rowan

In the early hours of Sunday morning, the Napa Valley region north of San Francisco was shaken by a magnitude 6 earthquake, the largest to hit this region since the magnitude 6.9 Loma Prieta earthquake in 1989. An earthquake in … Continue reading →

Categories: earthquakes, tectonics

Update: Christchurch aftershocks

Posted on June 27, 2011 by Chris Rowan

As the aftershocks of the Darfield quake continue, where do the future seismic dangers lie? Continue reading →

Categories: earthquakes, geohazards, tectonics

Friday focal mechanisms

Posted on July 16, 2010 by Chris Rowan

A brief summary of the past two week’s significant earthquakes, and their tectonic context. Continue reading →

Categories: earthquakes, geophysics