A teletsunami (also called an ocean-wide tsunami, distant tsunami, distant-source tsunami, far-field tsunami, or trans-ocean tsunami) is a tsunami that originates from a distant source, defined as more than 1,000 km (620 mi) away or three hours' travel from the area of interest,[1][2] sometimes travelling across an ocean. All teletsunamis have been generated by major earthquakes such as the 1755 Lisbon earthquake, 1960 Valdivia earthquake, 1964 Alaska earthquake, 2004 Indian Ocean earthquake, 2011 Tohoku earthquake, and the 2021 South Sandwich Islands earthquakes.
- ^ Intergovernmental Oceanographic Commission. "Tsunami Glossary". Technical Series. United Nations Educational, Scientific and Cultural Organization. Retrieved 2 March 2011.
- ^ "Tsunami Terms". The National Tsunami Hazard Mitigation Program. 1 April 1946. Archived from the original on 25 February 2011. Retrieved 2 March 2011.