Explosivity

Extreme low density values frequently coincide with the occurrence of large explosive volcanic eruptions, i.e. large values of the Volcanic Explosivity Index (VEI) shown here as arrows (see Briffa et al., 1998a).

Briffa: Large-Scale Decline in Ring Widths « Climate Audit 2006

Extreme low density values frequently coincide with the occurrence of large explosive volcanic eruptions, i.e. large values of the Volcanic Explosivity Index (VEI) shown here as arrows (see Briffa et al., 1998a).

A Briffa Collation « Climate Audit 2006

The eruption is now being unofficially rated as a 3 on the Volcanic Explosivity Index.

The Iceland Weather Report alda 2010

By the measure of the Volcanic Explosivity Index (VEI) - a sort-of Richter scale for eruptions - the current outburst is probably a 2 or a 3, experts say.

Christian Science Monitor | All Stories 2010

The eruption is now being unofficially rated as a 3 on the Volcanic Explosivity Index.

The Iceland Weather Report alda 2010

Volcanic Explosivity Index was 6 compared to Eyjafjallajokull's 1.

Travel news, travel guides and reviews | guardian.co.uk Leo Hickman 2010

By the measure of the Volcanic Explosivity Index (VEI) - a sort-of Richter scale for eruptions - the current outburst is probably a 2 or a 3, experts say.

Christian Science Monitor | All Stories 2010

But on the Volcanic Explosivity Index - volcanologists 'tool for rating the severity of an eruption - the event rated only a two out of a possible eight.

Latest Articles The Week 2010

Volcanic Explosivity Index was 6 compared to Eyjafjallajokull's 1.

Travel news, travel guides and reviews | guardian.co.uk Leo Hickman 2010

Though scientists haven't yet been able to gather enough information on the eruption to give it a score on the Volcanic Explosivity Index - which ranks volcanic events on a 1-to-8 scale - it's unlikely to score very high.

TIME.com: Top Stories 2010