Tsunami early warning and detection system

Tsunami Buoys

MSM’s Tsunami Early Detection and Warning System is a system of advanced technology which detects a tsunami event, processes it, and sends the information to a Control Centre with WEB platform, where an alarm is generated automatically. All this done in less than a minute.

A pressure sensor, deployed in a water depth of up to 7,000 meters, detects height variations on the water surface. A specially designed buoy communicates with the sensor acoustically and operates as an interface between it and the Web platform onshore in the Control Centre.


  • Materials and equipment specially designed for marine environment for a long durability of the system.
  • Buoy highly conspicuous during day and night for safety of navigation, equipped with a marine lantern, radar reflector, top mark and with the integration of an AIS transponder. Designed according to IALA recommendations.
  • Float manufactured closed-cell polyethylene solid foam sheet and projected with a layer of polyurethane elastomer providing an unsinkable buoy resistant to collisions.
  • Anti-vandal security systems to maintain the integrity of the buoy, including impact sensor with automatic alarm to the Control Centre.
  • GPS positioning system with out of position alarm in case of rupture of mooring system.

  • Mooring systems for deep waters.
  • The pressure sensor can measure variations in the water surface up to 1mm and triggers a tsunami event in case of variation of only 3cm, with special algorithms to discard false events, for a total accuracy of the detection of a tsunami event.
  • Pressure sensor’s mooring system specially designed to optimise its immersion towards the seabed and ensure its verticality.
  • Redundant communications via satellite permanently monitored from the Control Centre with alarm in case of transmission failure or delay.
  • Web application installed in two dedicated servers for user-friendly display of pressure measurements and monitoring of all the buoys parameter.
  • Message compatible and can be integrated in the NOAA Tsunami Early Warning System.
  • Capacity to integrate oceanographic and weather sensors to measure useful parameters that contribute to scientific development and studies on global and regional climate change.

Solutions for your project

Sonardyne and MSM Ocean partner on tsunami early warning system

Marine technology company Sonardyne and MSM Ocean have agreed to team-up on the supply of a complete solution for warning coastal communities of a tsunami.

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