READ MORE: Wave of plane crashes sparks aviation safety fears as expert warns 'now is not the time to cut ... Volcano Observatory said, making them smaller than the ones shooting out now.

The latest release of molten rock began 8:22 p.m. Fountains of lava reaching 300 to 400 feet (91 to 122 meters) have spurted out of the volcano’s north vent. This is the 10th episode of eruptive ...

John Pallister, retired chief of the Volcano Disaster Assistance Program, looks over an example of a field installation used for monitoring a volcano at the USGS office in Vancouver in 2016.