Visit Your Local PBS Station PBS Home PBS Home Programs A-Z TV Schedules Watch Video Donate Shop PBS Search PBS

NOVA Online (click here for NOVA home)
Deadly Shadow of Vesuvius
Site Map

Number of Eruptions Total Eruptions with this VEI

Volcanologists have rated over 6,000 eruptions that occurred within the last 10,000 years. Most eruptions have a VEI of 3 or less. Luckily, really big eruptions don't happen very often.

There are many volcanoes with a VEI of 2 because scientists assign a 2 to any volcano that they know was explosive but about which they have no other information.

back to VEI chart | Examples



SWAT Team | Predict Eruptions? | Deadliest Volcanoes
Planning for Disaster | Resources | Teacher's Guide
Transcript | Printable page | Site Map | Vesuvius Home


Editor's Picks | Previous Sites | Join Us/E-mail | TV/Web Schedule
About NOVA | Teachers | Site Map | Shop | Jobs | Search | To print
PBS Online | NOVA Online | WGBH

© | Updated November 2000

Support provided by

For new content
visit the redesigned
NOVA site