If there is an eruption however, or even an earthquake, researchers hope the same satellite technology could one day be used to locate the worst affected areas more quickly, enabling emergency services to get help to those most in need.
Hmmm, the BBC once again shows its mastery of stating the obvious. They are such masters that they haven't noticed that "one day" was ten years ago. Satellite Technology has been in use for some time to locate the worst affected areas of a disaster.