The final two pieces of a vast oceanic system designed to detect tsunamis were recently put into place, the National Oceanic and Atmospheric Administration announced.

The last of the 39 tsunami-detection buoys of the U.S. warning system were deployed in the South Pacific off the Solomon Islands in early March. The deep-ocean assessment and reporting stations provide NOAA forecasters with real-time data about any tsunami that could potentially strike U.S. states or territories.

This is one of several upgrades NOAA has made to its tsunami warning system since the devastating Indonesian tsunami in 2004.