Weather, Sumatra | featured news

Earthquake monitoring agencies issued a tsunami warning on Monday after a powerful tremor measuring more than 7 on the Richter scale under the sea off the west coast of Indonesia's Sumatra island.

The 6.9 magnitude struck at 08:52 a.m. local time Thursday on Sumatra island, about 180 miles from the epicenter of a more powerful quake on Wednesday. Rescue workers used excavators Thursday to pull out victims, some screaming in pain, from the heavy rubble of buildings felled by a powerful earthquake that killed at least 531 people. The death toll was expected to rise.

A 7.0-magnitude quake struck off the western coast of Indonesia's Sumatra Island on Sunday, the U.S. Geological Survey said.