Indonesia has installed 90 tsunami early warning systems in a number of regions in 2007, Meteorology and Geophysics Agency (BMG) official said on Saturday.
"We are planning to install 70 more tsunami detecting devices so that all of the 160 early warning systems worth 200 billion Rs (about $100 million) will have been installed in the country by 2008," Antara news agency quoted officials as saying.
The official said the devices were among others installed in Java's southern coastal areas and in Sumatra.
The BMG had also installed seven weather radars to serve as an early weather monitoring system in several areas such as Jakarta, Medan, Surabaya and Palembang.
"We need 22 more radar units to cover all of Indonesia so that natural disasters can be anticipated anywhere in the country," said the official. It was expected that all of the devices would have been installed in various regions by 2010.
At the end of 2004, a strong earthquake and tsunami in Indonesia's Aceh province killed about 160,000 people and made 5 million people homeless.