Sunday's temblor was a rare "midplate" earthquake where pent up energy from faraway plate collisions is released in random spots. There is no way to tell where the earthquake will strike. Scientists are intrigued by Sunday's temblor because the USGS recorded a magnitude 5.2 earthquake in the same spot on Feb. 10.

Neither earthquake caused damage, primarily because the epicenter was so far from land. Park said more damaging earthquakes closer to shore are possible.

He was not surprised the USGS received reports Sunday of weak shaking from as far away as Winston Salem, N.C., more than 760 miles from the epicenter of the quake. He said energy travels more efficiently in tectonic plates far from friction areas.

The epicenter of Sunday's earthquake was about 260 miles southwest of Tampa, about 18 miles beneath the Gulf of Mexico. As of Monday afternoon, the agency had received more than 5,500 reports of shaking, mostly from Florida's panhandle and west coast.

The reports noted the intensity of the shaking was "light." No major damage was reported. Many people didn't even notice it. -source

Unfortunately, for 36 million Americans, allergies are making mornings miserable.

Dr. William Lumry, Allergy & Asthma Specialists, Dallas, Texas, understands the challenges that allergy symptoms can present in the morning.

"Most of my patients say that mornings are the toughest time of the day to control allergy symptoms," said Dr. Lumry. "These symptoms typically include congestion, runny nose, sneezing and itchy, watery eyes, and can be especially bothersome in the morning."

According to a recent national survey, more than 80 percent of allergy sufferers experience allergy symptoms in the morning. It is not surprising, then, that nearly half of the respondents said that their allergy symptoms are more severe in the morning than any other part of the day.