St. Helens ‘spider’ will be used at Chilean volcano

heraldnet.com

“Geological “spiders,” packed with instruments to monitor the heaves, sighs and belches of Mount St. Helens, are expected to migrate south this month.

Two of the contraptions are headed to Chaiten, a volcano in Chile that began erupting in 2008 after about 9,000 years of dormancy. The spiders, as they are nicknamed, will be making their international debut.”