Following the powerful earthquake originating off the coast of Russia, UNESCO's early warning systems triggered a tsunami alert within just ten minutes. Thanks to this global monitoring system which UNESCO has been deploying for more than 20 years, as well as the Organizations’s efforts to raise awareness among coastal populations and lead research in ocean science, millions of people were warned ahead of the coming danger.

On the night of 29-30 July, an 8.8-magnitude undersea earthquake struck off the coast of the Kamchatka Peninsula in Russia. This exceptionally powerful earthquake was the strongest recorded since the Tōhoku earthquake in Japan in 2011, and one of the ten strongest since 1900.
Just ten minutes after the earthquake, the Pacific Tsunami Warning System, coordinated by UNESCO, issued an initial warning covering the areas most at risk, particularly the Russian and Japanese coasts. This warning was then relayed by national centers and enabled the immediate implementation of evacuation plans in several countries.
Within twenty minutes of the earthquake, this system provided detailed forecasts of expected flood heights, and the alert was then extended to other countries bordering the Pacific Ocean. Many of these countries, including China, Indonesia, Mexico, the Philippines, Peru, the United States and New Zealand, then issued national alerts or carried out preventive evacuations. Read more
CURRENT NEWS ITEMS

Building long-term coastal resilience under chronic climatic stress
Coastal cities and territories in the Caribbean face a complex mix of climate and development challenges…

In a heartfelt ceremony, Patricia was honored with the prestigious UNESCO Medal for 30 Years of Service. This accolade is a testament to her enduring commitment to excellence and her steadfast…

What’s Next:
- Integrating indigenous and local…

The newly recognized Decade Actions strengthen the existing portfolio of hundreds of initiatives endorsed by the Ocean Decade since 2021. With lead institutions spanning 21 countries – from…
A unified approach to Ocean-Climate-Biodiversity challenges
Ocean opportunities and challenges transcend borders, demanding collective action to unlock the economic…

Who organizes CARIBE WAVE?
A CARIBE EWS CARIBE WAVE task team is responsible for the overall conduct of the exercise. The NOAA/UNESCO IOC International Tsunami Information…

Implemented by the Intergovernmental Oceanographic Commission of UNESCO as part of the Ocean Biodiversity Information Systems (OBIS) Programme, the …

Malta: Tsunami Risk and Preparedness
The first documentary explores Malta's vulnerability to tsunamis,…

Spanning 21 marine World Heritage sites in 19 countries, the UNESCO eDNA Expeditions pilot program demonstrated the transformative potential of citizen science in enhancing ocean…