Lombok was hit by another quake on Thursday, the third in a little over a week, causing panic, injuries and damage to buildings.
The governor of the province that includes Lombok where the quake was centered, the military, the national search and rescue agency and regent of North Lombok issued different death tolls that ranged from 226 to 381.
Across much of the island, a popular tourist destination, once-bustling villages have been turned into virtual ghost towns.
According to Indonesia's national disaster agency, the death toll from Sunday's quake stood at 131 as of Wednesday, but local media are reporting figures as high as 381.
Officials said the quake's epicentre was on land and so there was no risk of a tsunami.
And in late July, another 6.4-magnitude natural disaster in Lombok killed 16 people and damaged hundreds of houses.
Aid began reaching isolated areas of the Indonesian island struggling after a powerful quake, while rescuers doubled down on efforts to find the dead, pulling another body from the rubble.
Scientists say the powerful Indonesian quake that killed almost 400 people lifted the island it struck by as much as 25 centimetres (10 inches).More news: Manchester United Make Diego Godin Approach
The magnitude 7.0 quake on Sunday killed at least 319 people and damaged or destroyed almost 68,000 homes.
A humanitarian crisis looms in Lombok, where thousands are in desperate need of clean water, food, medicine, and shelter.
Witnesses saw in the provincial capital Mataram people injured by the tremor and a hospital moved patients outside.
The death toll from the Lombok natural disaster has risen dramatically to 347, the government-run news agency Antara has said.
"In some villages we visited the destruction was nearly 100 percent, all houses collapsed, roads are cracked and bridges were broken", said Arifin Muhammad Hadi, a spokesman for the Indonesian Red Cross.
"We were stuck in the traffic while delivering aid, suddenly it felt like our vehicle was hit from behind, it was so strong", witness Sri Laksmi told AFP.
Workers with heavy machinery are searching the rubble of homes, schools and mosques, with hope of finding any survivors fading.
Sunarto, who uses one name, said hearing the call to prayer and being observant will help villagers rebuild from the disaster.