The powerful quake struck the Indonesian tourist island of Lombok, killing a number of people and shaking neighboring Bali, as authorities on Monday said thousands of houses were damaged and the death toll could climb.
The aftershock was the third big natural disaster to hit Lombok in less than two weeks, . causing buildings to collapse and destroying homes.
Many buildings still standing on the island have been weakened.
The updated figure was announced shortly after a strong aftershock shook the island, where tens of thousands of people have been left homeless.
The death toll from Monday's 6.9 magnitude natural disaster on the Indonesian island of Lombok has risen dramatically overnight to 347, with state-run news agency Antara issuing the new figure.
"The quake does not have any tsunami potential", Hary Tirto Djatmiko, spokesman for Indonesia's meteorology, climatology and geophysics agency (BMKG), said of Thursday's aftershock. The United States Geological Survey measured the quake at 5.9.
People in Bali, an island 93 miles from Lombok, also reported feeling the quake.
Across much of the island, a popular tourist destination, once-bustling villages have been turned into virtual ghost towns.
Makeshift medical facilities have been set up to treat the injured.
Thousands of tourists have also left Lombok since Sunday, fearing further earthquakes, some on extra flights provided by airlines and others on ferries to the neighbouring island of Bali.
Wiranto uses one name like many Indonesians. "Some paramedics have to be at the shelters, some need to be mobile", Majdi said.
But some evacuees have complained of being ignored or experiencing long delays for supplies to arrive at shelters.
"More than 3000 people have been evacuated in three days".
Kurniawan Eko Wibowo, a doctor at the field hospital, said most patients had broken bones and head injuries.
"People are always saying they need water and tarps", Spokesman Arifin Hadi told the AP about the current rescue efforts. "I do hope the government can help", she said.