Image: Locations of the sirens. Credit: BMKG
Bali already has several sirens to give an early warning of a possible approaching tsunami to residents who live in coastal areas. The tsunami sirens are in nine locations. They are located on Double Six Beach-Seminyak, Kuta Beach, Kedonganan Beach, Sanur Beach, Nusa Dua Beach, Tanjung Benoa Beach, Tanah Lot Beach-Tabanan, Seririt Beach-Buleleng, and Serangan Beach.
It is reported that the BMKG and the BPBD are monitoring and checking whether they are functioning correctly every month. However, Bali BPBD is the only institution that has the authority to activate them.
Denpasar Regional III BMKG gave six of the sirens to Bali Province Government in 2009 and the three others were handed over in 2016. The sirens will wail in the event of any tsunami warning. At the same time, BPBD will release an evacuation notice to the impacted residents. [It’s not stated, how the information is released.]
“These sirens are one part of the warning system,” he added.
Meanwhile, Bali only has one sea surface height measurement tool in Benoa, and it is monitored by Geospatial Information Board (BIG). “Some of the data is sent to BMKG,” he concluded.