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NEW: Resident says quake "was no fun"

There are no immediate reports of damage

No tsunami warning is posted

Papua New Guinea is in an area of high seismic and volcanic activity

CNN —  

Some parts of Papua New Guinea were without power Wednesday after a major earthquake rocked the area.

“I was at my desk when it hit,” said Ella Hall in Lae, about 90 kilometers (55 miles) north-northwest of the quake’s epicenter. “The house started to shake from side to side. I could hear glasses falling downstairs.”

The magnitude 7.1 quake hit a remote mountainous region, but was well underground at a depth of 121 kilometers (75 miles), the U.S. Geological Survey reported.

Hall said it was her first “real quake” after experiencing tremors before.

“Running down the stairs was like walking on a silly ladder in a fun house, except it was no fun,” she said. “I grabbed my daughter and ran outside, only to see the water in the pool sloshing and spilling around like water in a glass.”

Some shaking was felt in the capital about 220 kilometers (137 miles) to the south-southeast, said Sgt. Lawson Sakala of Papua New Guinea police in Port Moresby. There were no immediate reports of damage from the public, he said.

No tsunami warning was posted.

Papua New Guinea is along the Pacific “ring of fire,” an area of high seismic and volcanic activity stretching from New Zealand in the South Pacific up through Japan, across to Alaska, and down the west coasts of North and South America.

CNN’s Hannah Belcher contributed to this report