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

4.4 earthquake rattles Bay Area

A 4.4 magnitude earthquake shook the Bay Area early Thursday morning.

The quake struck at 2:39 a.m. and was centered two miles east/southeast of Berkeley on the Hayward fault according to the USGS.

Keith Knudsen with the USGS in Menlo Park said there hadn't been a major earthquake on the Hayward fault in over 100 years. A magnitude 6.8 tremblor struck the Hayward fault on October 21, 1868 killing 30 people and causing widespread damage. "It's a great reminder the Hayward fault is ready to go," Knudsen said.

Knudsen said there was one aftershock recordered following Thursday morning's quake and there is a small probability it will be followed by a bigger earthquake. Historically, about 5% of earthquakes are followed by larger ones.

Randy Baldwin, a geophysicist with the USGS said the quake was eight miles deep which is fairly shallow. He said the quake was widely felt about 100 miles beyond the epicenter and that a magnitude 4.4 earthquake is a common size for the area.

The quick jolt woke many people up. The KTVU newsroom was flooded with callers who felt the shaking all the way north to Cotati and South to Gilroy. A few people reported items had fallen off shelves.

BART said there were delays on the first trains while they inspected their system as is routine after an earthquake. Officials said there were no reports or signs of damage and trains were back on schedule at around 5:45 a.m.

VTA also conducted routine checks of its tracks as part of its standard safety precautions. Early morning riders experienced minor delays.

Alert SF said there is no threat of a Tsunami and the California Office of Emergency Services said there were no reports of damage.