On October 25th 2010, an earthquake followed by a devastating tsunami struck the Mentawai Islands, a group of four large islands – Siberut, Sipora, Pagai Utara and Pagai Seletan - situated off the western coast of Sumatra in Indonesia.
Since its latest series of deadly eruptions, Java’s Mt Merapi has been spewing volcanic ash clouds into the air. Satellitedata are crucial for assessing the eruption’s danger to air traffic and public safety.
Indonesia issued a red alert after the Sinabung volcano on the island of Sumatra erupted, forcing the evacuation of thousands of people.
Although mount Sinabung's have spewed smoke and ash weaker than the first and the second day of eruption, the agency officials have not seen any signs to downgrade the alert status of the mount so far.
One of Indonesias most active volcanos erupted on Friday, sending lava and a searing gas cloud tumblingdown its slopes. At least four people have been confirmed dead, officials said, and several others were seriously hurt.