News

Slow-moving surface breakouts extend flow front a short distance

Slow-moving breakouts remain active behind stalled flow front

Over the past 42 hours, the earthquake swarm in California's Long Valley Caldera, which began last Friday (see September 26 post), has gradually...

We have been closely tracking an earthquake swarm in California's Long Valley Caldera, which started yesterday at around 4AM PDT (September 25, 2014)...

Pu‘u ‘Ō‘ō and the June 27th lava flow

Much scientific study has been done to determine what types of eruptions produce long lava flows. In the 1970s, a very simple idea seemed to guide...

On the afternoon of September 20, a large volume of water surged down Mount Shasta's south flank into Mud Creek, entraining debris and inundating the...

Leading edge of June 27th flow stalls, but activity persists near flow front

Satellite image shows continued activity near June 27th flow front

June 27th lava flow continues moving northeast, reaches open ground