A Civil Defence spokesman said there was no tsunami threat to New Zealand following the quake.
There were was no immediate information about damage or casualties.
A strong natural disaster has cut power across the Indonesian island of Lombok and destroyed buildings as the tourist hotspot tries to recover from a quake earlier this month that killed hundreds of people.
The 6.9 magnitude quake struck at a relatively shallow depth of 20 kilometres in East Lombok.
Sunday's first quake, at a depth of 7.9km, "caused people to panic and flee their homes", national disaster agency spokesperson Sutopo Purwo Nugroho told local media.
The picturesque island is already reeling from two devastating quakes on Jul 29 and Aug 5 that killed almost 500 people and made hundreds of thousands homeless.
The U.S. Tsunami Warning Center said the quake was too deep to cause a tsunami.
The tremor follows another one earlier today measuring 6.3 which happened near the town of Belanting. They're all gathering in an open field, still...
Lombok, just east of Bali, one of the South-East Asian country's most famous tourist destination, has been rocked by a series of quakes and aftershocks since July 29, including a magnitude-6.9 tremor on August 5.
The earthquakes Sunday are in the Pacific Ring of Fire, an arc of fault lines circling the Pacific Basin.
Authorities said aid was slow getting to some of the hardest-hit areas as they are remote.