A new study published in Nature Communications uncovers 5,000 years of tectonic activity a coastal cave in Indonesia, which was ravaged by the 2004 Indian Ocean tsunami. The discovery is the first record of ancient tsunami activity found in a sea cave.

Researchers studied successive layers of sediment laid down by tsunamis between 7,900 and 2,900 years ago, during which there were 11 earthquakes along the Sunda Megathrust fault line. Researchers say we are still unable to predict when the next one will strike.

The paper's co-authors include Assoc Prof Andrew Parnell, UCD Mathematics and Statistics has been covered by The Atlantic, Atlas Obscura, Science Daily, Seeker, Newsline and The Daily Mail.