Environment

Visualizing the Shaking Rage of Iceland's Bardarbunga Volcano

This is what a swarm of earthquakes looks like underneath the massive stratovolcano.
Bardarbunga hidden beneath an icecap in 1977.Oddur Sigurdsson/Smithsonian

The millions of air travelers that were stranded for a week during the 2010 Eyjafjallajokull eruption should avoid booking any getaways now that the ground is trembling at Bardarbunga, the centerpiece of the largest volcanic system in Iceland.

Heavy seismic activity kicked off this weekend, with the Icelandic Met Office subsequently reporting magma swelling near the surface and a string of earthquakes—including the strongest in the region since 1996. These worrisome signs prompted the government to issue this bulletin on Monday: