Indonesia's disaster agency says early detection tsunami buoys off the coast of Sulawesi have not been working for six years, resulting in insufficient warning before rising waters reached the shore.
Key points:
- Early warning tsunami buoys have not been working since 2012
- Disaster management expert says early warning could have provided critical information
- Recovery efforts are 'difficult' due to a lack of heavy machinery
Big waves as high as six metres following the magnitude-7.5 earthquake on Friday killed at least 832 people in the cities of Palu and Donggala — highlighting the weaknesses of the existing warning system and low public awareness about how to respond to warnings.
A network of 22 buoys connected to seafloor sensors was meant to transmit advance tsunami warnings to the Indonesian meteorology and geophysics agency (BMKG).
But Sutopo Purwo Nugroho, spokesman for the National Disaster Mitigation Agency (BNPB), said the detection buoys had not worked since 2012 due to a lack of funding."If we look at the funding, it has decreased every year," he told Indonesian media at a press conference on Sunday.
The buoys, designed to detect tidal waves and potential tsunamis, are the fastest early detection tsunami technology in the country.