The three boys and a girl were born in Moscow after Kamchatka doctors refused to be involved in such a complicated delivery, as even twins are considered a risk for both the mother and newborn babies.
"The quadruplets were conceived through artificial insemination," the source said.
Mother and babies are doing well and will remain in hospital until they are well enough to return to Kamchatka.
Quadruplets are really rare, and the chance of a woman delivering four bundles of joy is approximately 1:512,000. Unfortunately, most quadruplets are usually born prematurely, and the survival rate is quite low.
Multiple births have become more frequent, as more women take fertility drugs, which increase the risk of multiple pregnancies. In the past month there has been a series of multiple births. In early November, a 29 year-old Russian music teacher gave birth to five girls 14 weeks premature at a maternity clinic in Oxford, southern England.
On October 30, three boys and a girl, weighing between 1.5 to 1.8 kg (3.3-4 lbs), were born to a couple in the troubled Gaza Strip.
On November 7, a 23 year-old woman in Mangalore, India, gave birth to two boys and two girls and the next day, a 27 year-old in Costa Rica, gave birth to four baby boys naming them Juan Carlos, Juan Andres, Juan Pablo and Juan David.
