Hazards & Monitoring
This volcanic hazard is a volcanic debris flow composed of a slurry of volcanic ash, along with melted snow and ice.
This peak in Oregon erupted famously in 1980 with a volcanic explosivity index of 5 out of 8.
What is Mount St. Helens?
This country has the most volcanoes.
What is Indonesia?
A volcano that has not erupted in recent history is considered to be this.
What is a dormant volcano?
What is sulfur dioxide?
This famous volcano is the only volcano that has erupted in mainland Europe in the last 100 years and it was once the home of Spartacus.
What is Mount Vesuvius?
Pierce Brosnan plays a USGS scientist in this famous movie where dissolved sulfur dioxide makes nearby lakes highly acidic.
What is Dante's Peak? (It's on Netflix)
This type of volcano has a broad shape with gentle slopes.
What is a shield volcano?
Hindcasting uses this imagery to predict past volcanic eruptions that had little warning signs.
What is Satellite Imagery?
This is the scale that is used to measure the strength of volcanic eruptions and is measured on a scale of 1 to 8.
What is the volcanic explosivity index or VEI?
What is 452?
This type of volcano forms the Hawaiian Island Chain
What is a hotspot volcano