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Anuwat Kongko, a 28-year-old hiker from Thailand, was on top of Mount Rinjani when the earthquake hit.
 
"I reached the summit [Mont Rinjani] at around 6am along with some friends. Then I spent some time taking pictures with my camera with my friends until 6.47am, when the 1st earthquake occurred. It's just like the mountain was shaking. Everyone crouched on the floor and after it stopped I started to run away from there.
 
"After 10minutes an aftershock happened. Then, everyone was told to move out from there pretty quickly (you can see it in my video). Some of the pathway was destroyed by the earthquake."
 
Kongko said it took them 1 hour to get from the summit to the camping area, and 3 hours from the camping area to the village.
PHOTO: Anuwat Kongko
Anuwat Kongko, a 28-year-old hiker from Thailand, was on top of Mount Rinjani when the earthquake hit. "I reached the summit [Mont Rinjani] at around 6am along with some friends. Then I spent some time taking pictures with my camera with my friends until 6.47am, when the 1st earthquake occurred. It's just like the mountain was shaking. Everyone crouched on the floor and after it stopped I started to run away from there. "After 10minutes an aftershock happened. Then, everyone was told to move out from there pretty quickly (you can see it in my video). Some of the pathway was destroyed by the earthquake." Kongko said it took them 1 hour to get from the summit to the camping area, and 3 hours from the camping area to the village.
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Story highlights

No tsunami warnings are issued

The quake is felt in neighboring Guam

(CNN) —  

A 7.7-magnitude earthquake struck the Mariana Islands in the Pacific Ocean early Saturday.

The quake occurred at a depth of 117 miles (212 km) some 19 miles south-southwest of the uninhabited island of Agrihan in the U.S. territory, the U.S. Geological Survey said.

No tsunami warning has been issued, according to the National Tsunami Warning Center.

Spokesman Paul Whitmore said a barely noticeable wave of about two inches was recorded in Saipan, the largest of the islands.

The Commonwealth of the Northern Mariana Islands lies about 5,800 miles south-southwest of California’s Pacific shore.

The quake was felt in the neighboring territory of Guam, with Twitter user @JRaemier telling CNN it woke her up and @Katfayeee saying it was the biggest earthquake she’d experienced.

Read: Everything you need to know about voting in Mariana Islands and Guam

The USGS reported five smaller earthquakes in the Mariana Islands area over the next 10 hours. The next biggest measured 4.9 and occurred 7 miles (11 km) south of Agrihan at a depth of 122 miles.

CNN’s Jennifer Hauser contributed to this report.