The scale of the dramatic collapse of the Indonesian volcano that led to last Saturday's devastating tsunami in the Sunda Strait is becoming clear. Researchers have examined satellite images of Anak Krakatau to calculate the amount of rock a...

  Coastal residents near Indonesia's Anak Krakatau volcano have been warned to keep away from beaches amid fears it could trigger a new tsunami. On Saturday, giant waves crashed into coastal towns on the islands of Sumatra and Java, killing at...