More than 1,000 people were injured and the death toll "will continue to rise", spokesman said.
Some 200 employees had gathered at the Tanjung Lesung beach for an end-of-year party.
The destructive wave left a trail of uprooted trees and debris strewn across beaches
Krakatoa, volcanic island emerged from ocean half a century after Krakatoa´s deadly 1883 eruption.
Thousands of residents in Jakarta were evacuated due to floods caused by torrential rain.
Monuments are planned to remember untold numbers of victims buried by soil and rubble.
The government earlier indicated these hard-hit areas would be left untouched as mass graves.
The national disaster mitigation agency has called off the search.
Indonesia has traditionally been reluctant to be seen as relying on outside help.
Authorities have said as many as 5,000 are believed missing in two hard-hit areas.
The official death toll from the quake and the tsunami it triggered has risen to 1,649
More than a thousand people may still be missing in the seaside city on Sulawesi island.
The UN plan aims to provide help to 191,000 people over the next three months
Officials had previously estimated that around 100 people were missing.
A total of 1,424 people have been confirmed dead and over 2,500 injured.
At a minimum, 150 people are unaccounted for beneath the rubble
The official death toll from the 7.5 magnitude quake that struck the west coast of Sulawesi.
Rescuers are racing against time to find survivors in the rubble
Arriani said rescuers faced an arduous trek to reach the mudslide and retrieve the victims.
Powerful earthquake leaves behind a trail of annihilation; Indonesia needs help.