1.  GPS allows geologists to chart ground shifts without use of laser-ranging devices.  Interferometric synthetic aperture radar- satellites zap radar signals to earth’s surface and shows how it bounces back  Digital cameras connected to wireless computers monitir the volcanoes  Spiderlike robots used by NASA goes in to craters to collect research

2.  New digital seismometers are more sensitive than precursors  New machines are not in Mt. St. Helens, but are in Califonia for earthquakes  Costs $20,000 for 1 presiscion GPS unit  One of the units placed near the volcano was lost along with a seismometer  It’s more accurate than consumer GPS devices, is smaller, and can powered by solar panels and batteries http://news.zdnet.com/2102-9584_22-53236.html?tag=printthis

3. Is it worth it? Where should they be put? Who should have to pay for the research/ equipment? How will it help in the future to predict volcanoes? How is this information beneficial?