Tsunami sensors missed 18-feet-high waves that killed 384 in Indonesia
Magnitude Depth Jakarta: Indonesia’s geophysics agency lifted a tsunami warning 34 minutes after it was first issued following a major earthquake that sent huge waves crashing into the northeastern coast of Sulawesi island, killing at least 384 people.
The 7.5 magnitude quake and tsunami hit Palu. Hundreds of people had gathered for a festival on the beach in Palu on Friday when 18-feet waves smashed onshore at dusk.
The geophysics agency said it followed standard operating procedure and made the call to “end” the warning based on data from the closest tidal sensor, around 200 km from Palu. Rahmat Triyono, head of the Earthquakes and Tsunami Centre said the closest tide gauge only recorded an “insignificant” 2.5-inches wave and did not account for the giant waves near Palu.
(Top) Cracks seen on a road in Palu in Central Sulawesi on Saturday. (Above) The ruin of a mosque badly damaged by an earthquake and a tsunami in Palu