Earthquake strikes under Indian Ocean far off Australian coast, but no tsunami warning issued / Trauma lingers on for survivors of the deadly 2004 Indian Ocean tsunami / Thousands across Asia remember 2004 Indian Ocean tsunami victims / A look at the tsunami that devastated Indian Ocean coastal communities 20 years ago / How the 2004 Indian Ocean tsunami became a 'wake up call' for early warning systems / Prayers and tears mark 20 years since the Indian Ocean tsunami that killed some 230,000 people / Indian Ocean tsunami, 20 years on: Trauma still haunts survivors / Indian Ocean tsunami: how survivors found love after Boxing Day disaster / Will a tsunami strike India's west coast?