Two strong earthquakes of magnitude 6.1 and 6.2 struck south of Hawaii island on Sunday.

The U.S. Geological Survey tweeted that the first quake struck about 17 miles south of Naalehu and 20 minutes later, a 6.2 magnitude earthquake struck in the same area. The National Weather Service in Honolulu, however, confirmed that there was no tsunami threat.

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Meanwhile, residents of Oahu felt the shaking and items fell off the shelves at stories, however, no injuries were immediately reported.

Several residents of South Kona and Kau districts of Hawaii Island also reported moderate to strong shaking. Residents from Waikiki  also felt the quake.

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Several resident shared on social media that they felt the quake. 

"A 6.1 off the south end of the Big Island. Felt it here on Maui as a series of small rolling waves. The house jittered for some seconds--long enough that I knew it was large wherever it was. Hoping all is well over there," one person tweeted.

"Hawaii just experienced a large magnitude 6.1 or 6.2 earthquake. Large earthquakes here always worry me because of the risk of extremely large underwater landslides," another person wrote. 

Ken Hon, scientist-in-charge at the Hawaiian Volcano Observatory, told local media that the earthquake was not related to the ongoing eruption of Kilauea volcano.

Initially, the USGS reported the earthquake's magnitude at 6.1, but later increased it to 6.2. Quakes of that magnitude can cause severe damage.