A strong earthquake with a preliminary magnitude of 6.2 has hit off the coast of Oregon.

The United States Geological Survey (USGS) said the quake occurred just after 1:30 a.m. local time over 170 miles west of Coos Bay and nearly 220 miles southwest of Portland. Still, residents of the city reported feeling the tremor. according to Robert Sanders of the USGS.

There are no reports of damage or injury and a tsunami warning has not been issued for the surrounding areas. The quake was located at a depth of about six miles.

About two hours after the initial quake occurred, an aftershock with a preliminary magnitude of 3.5 struck the area.

The area where the quake occurred on Wednesday morning is considered a seismically active zone.

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Local residents in British Columbia and the west coast of North America have long feared of "the Big One" — a potential natural disaster in which an earthquake with a magnitude of 9.0 or greater strikes the region.

Oregon residents posted videos to social media showing the impact the earthquake had, causing lights and infrastructure to shake in the town of Bandon.

Mexico City: How it's rebuilding after the September earthquake Show all 8 1 /8 Mexico City: How it's rebuilding after the September earthquake Mexico City: How it's rebuilding after the September earthquake Mexico City rebuilding after September earthquake A woman and two girls pass by a house which collapsed during the quake AFP/Getty Images Mexico City: How it's rebuilding after the September earthquake Mexico City rebuilding after September earthquake Technicians watch as a building seriously damaged by the September 19 earthquake is demolished AFP/Getty Images Mexico City: How it's rebuilding after the September earthquake Mexico City rebuilding after September earthquake A concert was held in aid of the victims of the September 19 earthquake, at the Zocalo Square in Mexico City on October 8 AFP/Getty Images Mexico City: How it's rebuilding after the September earthquake Mexico City rebuilding after September earthquake Rodrigo Diaz Mejia climbs over a crushed car into what was a second-story apartment AP Mexico City: How it's rebuilding after the September earthquake Mexico City rebuilding after September earthquake Presentation of the cultural program of Days of the Dead in Mexico City EPA Mexico City: How it's rebuilding after the September earthquake Mexico City rebuilding after September earthquake Workers tear down an earthquake-damaged building AP Mexico City: How it's rebuilding after the September earthquake Mexico City rebuilding after September earthquake Clowns take part in the 22nd Latin American clown convention at Revolucion monument in Mexico City REUTERS Mexico City: How it's rebuilding after the September earthquake Mexico City rebuilding after September earthquake A worker fills a water tank in the neighbourhood affected by the earthquake REUTERS

Meanwhile, international agencies were alerting people to the massive earthquake on Wednesday, including Australia's Bureau of Meteorology, which did not issue a tsunami threat for the nation.