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HONOLULU (AP) -- The U.S. Geological Survey reports a magnitude-4.5 earthquake has rattled Hawaii's Big Island, as two hurricanes rumbled toward the islands.

The temblor struck on the north tip of the Big Island, about 7 miles from Waimea at 6:24 a.m. local time.

The U.S. Geological Survey initially announced the quake was magnitude-4.3 and quickly upgraded it.

Hawaii County Civil Defense Director Darryl Oliveira says there haven't been any reports of damage. He said a moderate quake is "not uncommon" for Hawaii.

An employee of a grocery store in Waimea, a city of about 7,000, said the quake did not cause any apparent damage in the building and did not knock anything off shelves.

Hurricane Iselle was on course to hit the Big Island Thursday night, and was being tailed by Hurricane Julio, which strengthened early Thursday into a Category 2 storm.

STORY:Iselle to give Hawaii first hurricane in 22 years

VIDEO: Hawaii braces for first hurricanes in 22 years

Hurricane Iselle will make its way across the Hawaiian islands Thursday night and Friday. Hurricane Julio will be right on its heels over the weekend.

VIDEO: Hawaiians scramble to prepare for Hurricane Iselle

Carly Mallenbaum hosts USA NOW about the first hurricane in 22 years is expected to hit landfall Thursday. USA TODAY’s Mike Tsukamoto says residents of Hawaii are cleaning out stores of supplies in anticipation of power outages and major flooding. (USA NOW, USA TODAY)

GALLERY: Severe Weather Photos

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