Global Real-time Early Alarm for Tsunami (GREAT)

Global Real-time Early Alarm for Tsunami (GREAT)

Global Real-time Early Alarm for Tsunami (GREAT) 710 397 Ocean Decade

Lead institution:

Cardiff University – United Kingdom of Great Britain and Northern Ireland (UK)

The project minimizes false alarms, ensuring more accurate and cost-effective emergency responses.

A tsunami warning relies on seismic measurements causing false alarms which result in financial loss due to evacuation and business shutdown. Moreover, people’s confidence is reduced due to repeating false alarms leading to an increased number of casualties in real tsunamis.

Reducing false alarms is an intergovernmental priority led by UNESCO in accordance with SDG’s Goal 11 to make cities inclusive, safe, resilient, and sustainable. Therefore, we developed a real-time early tsunami warning technology based on analysing travelling sound signals that carry information on tsunamis.

The technology will be deployed in two NTWCs for operational validation, then it will be deployed in more centres to provide tsunami emergency response. The technology is built on years of research in the field, bridging cutting-edge deep-sea observations to inverse modelling, AI and numerical modelling. Such a technology is complementary and inclusive of the conventional tsunami detection techniques.

This project is hosted by The Ocean Decade Tsunami Programme.

Start Date: 1/9/2013
End Date: 31/12/2030

Lead Contact: Usama Kadri (

challenges: 6- Coastal Resilience, 7- Ocean Observations
ocean_basins: Indian Ocean, Mediterranean Sea, North Atlantic Ocean, North Pacific Ocean, South Atlantic Ocean, South Pacific Ocean, Southern Ocean
type_of_action: Project


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