Warning of tsunami greater than 2004 By Roger Highfield, Science Editor Last Updated: 6:01pm BST 05/09/2007 Tens of millions of people who live in the Bay of Bengal face the threat of a tsunami as massive as the one that devastated the Sumatran coast in 2004, a leading geologist warns today. Satellite images showing Banda Aceh before (top) and after (bottom) the 2004 tsunami While the Boxing Day 2004 disaster took the scientific community by surprise, killing around a quarter of a million people, one geologist who had sounded the alert about the dangers in the Indian Ocean now says...