Flash Flood Watch
until MON 12:00 AM MST, Northwest Plateau, Lake Havasu and Fort Mohave, Northwest Deserts, Grand Canyon Country, Coconino Plateau, Yavapai County Mountains, Little Colorado River Valley in Coconino County, Little Colorado River Valley in Navajo County, Little Colorado River Valley in Apache County, Western Mogollon Rim, Eastern Mogollon Rim, White Mountains, Northern Gila County, Lake Mead National Recreation Area, Yavapai County Valleys and Basins, Oak Creek and Sycamore Canyons, Western Pima County including Ajo/Organ Pipe Cactus National Monument, Tohono O'odham Nation including Sells, Upper Santa Cruz River and Altar Valleys including Nogales, Tucson Metro Area including Tucson/Green Valley/Marana/Vail, South Central Pinal County including Eloy/Picacho Peak State Park, Southeast Pinal County including Kearny/Mammoth/Oracle, Upper San Pedro River Valley including Sierra Vista/Benson, Eastern Cochise County below 5000 ft including Douglas/Wilcox, Upper Gila River and Aravaipa Valleys including Clifton/Safford, White Mountains of Graham and Greenlee Counties including Hannagan Meadow, Galiuro and Pinaleno Mountains including Mount Graham, Chiricahua Mountains including Chiricahua National Monument, Dragoon/Mule/Huachuca and Santa Rita Mountains including Bisbee/Canelo Hills/Madera Canyon, Santa Catalina and Rincon Mountains including Mount Lemmon/Summerhaven, Baboquivari Mountains including Kitt Peak, Aguila Valley, Northwest Valley, Tonopah Desert, Gila Bend, Buckeye/Avondale, Cave Creek/New River, Deer Valley, Central Phoenix, North Phoenix/Glendale, New River Mesa, Scottsdale/Paradise Valley, Rio Verde/Salt River, East Valley, Fountain Hills/East Mesa, South Mountain/Ahwatukee, Southeast Valley/Queen Creek, Superior, Northwest Pinal County, West Pinal County, Apache Junction/Gold Canyon, Tonto Basin, Mazatzal Mountains, Pinal/Superstition Mountains, Sonoran Desert Natl Monument, San Carlos, Dripping Springs, Globe/Miami, Southeast Gila County

4.1-magnitude earthquake strikes in Delaware Bay

A 4.1-magnitude earthquake has struck in Delaware Bay on Thursday, according to the United States Geological Survey.

The USGS said the earthquake hit at about 4:45 p.m. approximately 6 miles east-northeast of Dover, Delaware and at a depth of about 4.3 miles.

"For the eastern U.S. it's fairly significant because they don't very many of that size and when they do get one of this side they are felt over a wider area than in other areas of the country such as California," John Bellini with the National Earthquake Information Center told FOX 5.

The earthquake was given a preliminary magnitude of 5.1 before being downgraded to 4.4 magnitude. It was later downgraded again to 4.1magnitude.

"In some areas of the country we have more cooperation with local networks and sometimes automatics get sent to the website in the early stages of locating an earthquake," Bellini explained. "When this happens the magnitude can change as we get more data and that's what happened in this situation."

Bellini said it wouldn't be uncommon for an aftershock to hit in the area around the magnitude 2 range.

Dr. Lucy Jones, a world-leading seismologist, said the earthquake was an Intensity VI, which has the strength to throw objects from shelves and damage poorly built structures.

FOX 5 viewers have reported feeling the earthquake in the District, Maryland, including Prince George's County and Montgomery County, and in Virginia, including Prince William County and Fairfax County. The earthquake was felt along the East Coast, including in Philadelphia, New York and even southwest Connecticut.

There have been no immediate reports of damage or injury.