Dangerous Boundary (IMAGE) Columbia Climate School Caption Bangladesh, Myanmar and eastern India (all near top) are bisected by an extension of the tectonic boundary that ruptured under the Indian Ocean in 2004, killing some 230,000 people. Known quakes along the boundary's southern end are shown in different colors; the black sections nearer the top have not ruptured in historic times, but new research suggests they could. Credit Michael Steckler/Lamont-Doherty Earth Observatory Usage Restrictions Credit must be given License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.