WASHINGTON D.C. (HawaiiNewsNow) - The U.S. Geological Survey has slightly lowered its estimate of the Virginia earthquake's magnitude from 5.9 to 5.8.
The quake forced evacuations of all the memorials and monuments on the National Mall in Washington and rattled nerves from South Carolina to Martha's Vineyard, the Massachusetts island where President Barack Obama is vacationing.
Officials said the earthquake was half a mile deep and centered near Louisa, Va., about 40 miles northwest of Richmond. Numerous minor injuries have been reported in the Washington area.
The federal agency says more than 12 million people live close enough to the quake's epicenter to feel shaking.
National Park Service spokesman Bill Line says the memorials and monuments, including the new Martin Luther King Jr. memorial, were evacuated immediately after the quake. He says he's not aware of any injuries to visitors or Park Service staff or damage to Park Service properties.
NO reports of injuries or significant damages at this time.
The West Coast and Alaska Tsunami Warning Center issued this alert: The location is such that a tsunami IS NOT EXPECTED. However, in coastal areas of intense shaking, locally generated tsunamis can be triggered by underwater landslides.
Federal officials say two nuclear reactors at the North Anna Power Station in Louisa County, Va., were automatically taken off line by safety systems around the time of the earthquake.
The Dominion-operated power plant is being run off of four emergency diesel generators, which are supplying power for critical safety equipment.
Nuclear Regulatory Commission spokesman Roger Hannah says the agency was not immediately aware of any damage at nuclear power plants in the southeast. The NRC and Dominion are sending people to inspect the site.
Hanna said he know of no other shut reactor but that unusual events were reported at a dozen other plant sites. Louisa County is about 40 miles northwest of Richmond.