The deadly 6.9-magnitude quake hit the Indonesian island on Sunday night, leaving tens of thousands of people homeless.
It was centered in the northwest of the island and didn't have the potential to cause a tsunami, Indonesia's geological agency said.
A Reuters witness said the latest quake sent people into the streets in panic and caused buildings to collapse.
The United States Geological Survey (USGS) recorded the latest quake at 5.9, with a depth of 10 km (6 miles).
Another major natural disaster just hit the tourist island of Lombok in Indonesia, just four days after a massive magnitude-6.9 quake struck Lombok island on Sunday evening.
Spokesman Arifin Hadi says the tens of thousands people left homeless by Sunday's quake need clean water and tarpaulins most of all.
The Red Cross said it was focusing relief efforts on an estimated 20,000 people yet to get any assistance.
People are seen running out of Bali's Ngurah Rai International Airport, Indonesia August 9, 2018 in this still image taken from a video obtained from social media.
At a shelter in hard-hit Kayangan, new mother Rusnah, who like many Indonesians goes by one name, said she needed basic supplies for her children.
It's the third tremor to hit Lombok in the space of two weeks.
Authorities are gathering information from family members with missing relatives to determine how many more people may have been in the buildings when they collapsed, national search and rescue agency spokesman Yusuf Latif told AFP. "I do hope the government can help", she said.
Indonesia is prone to earthquakes because of its location on the 'Ring of Fire, ' an arc of volcanoes and fault lines in the Pacific Basin.
The island is a popular holiday spot and thousands of tourists have now left. In December 2004, a massive magnitude 9.1 natural disaster off Sumatra triggered a tsunami that killed 230,000 people in a dozen countries.