Earth Changes
The epicenter of the quake was 105 km (65 miles) WSW of Hagatna, 185 km (115 miles) SW of Rota, Northern Mariana Islands, 305 km (190 miles) SW of SAIPAN, Northern Mariana Islands, and 410 km (255 miles) SSW of Anatahan, Northern Mariana Islands, according to the US Geological Survey.
On Tuesday, 24 February 2009, a 6.1 magnitude earthquake struck about 105 miles East-North-East of Guam, but nary a shiver was felt on the island.

Folkestone residents sit in the street after an earthquake damaged houses in April 2007.
People in Folkestone, Kent were shaken, but not stirred, by a small earthquake in their vicinity yesterday.
A tremor measuring 2.8 on the Richter scale was registered but there were no reports of any damage to buildings or any injuries.
Kent police said: "We have had telephone calls and obviously people were concerned that it might be a bomb, but we can confirm it was indeed a tremor."
According to the study published in the Proceedings of the Royal Society B, young male Augrabies flat lizards (Platysaurus broadleyi) hide their colors so as to imitate plain, brown females.
"In this system the adult males are extremely colorful and extremely territorial and the females are a plain brown," said co-author Scott Keogh, of the School of Biological Sciences at the Australian National University. "Young males purposefully only develop colors on their belly, so they reach sexual maturity by still looking like a female."
Imitating a female allows the juvenile lizards to mate with females, without being detected and driven away by the larger, territorial, adult males, who will chase and bite their young rivals.

Bloodworms are just one type of water-dwelling animal that produces laughing gas.
They may be no match for methane-burping cows, but bloodworms are doing their best to make a name for themselves with climate scientists. New research shows that their guts leak "laughing gas" - a powerful greenhouse gas - albeit in amounts too small to significantly affect the climate.
Previously, no water-dwelling animal was known to produce the gas, more properly known as nitrous oxide (N20).
Some land invertebrates such as earthworms are known to produce nitrous oxide, so to see if water invertebrates are also a source, Peter Stief and his colleagues at Aarhus University in Denmark surveyed seven aquatic sites including freshwater creeks, lakes and the seashore.
They collected a wide range of worms, larvae and bugs, placed them in closed vials, and analysed what came off. They found not only that N20 is produced, but that the amount increased with time.
It's increasingly likely that the fish you eat was farmed not caught wild, according to the latest statistics of the UN Food and Agriculture Organization.
The group's two-yearly assessment of world fisheries, published today, comes with mitigated good news.
The outlook for wild ocean fish remains gloomy: 80% of all fisheries are at or beyond their maximum yields, and over-fishing continues to climb. Yet the amount of fish available to eat is growing faster than the human population, thanks to a boom in fish farming.
The FAO calculates that, for the first time, fish farms produce half the fish we eat, up from less than a third in 2002. With wild-catch fisheries maxed out, any more increases in fish production will depend on farms.
Sanitation commissioner John Doherty warned that New York should expect "the largest snowstorm we've seen in this year."
The snowstorm early Monday snapped power lines, closed schools and snarled the morning commute amid freezing temperatures from Maryland to Maine.
The devastating effects of the storm were seen up and down the coast. A crash caused a 15-mile (25-kilometer) traffic jam in North Carolina, forcing police and the Red Cross to go car-to-car to check on stranded drivers. The storm was blamed for more than 500 crashes in New Jersey, and a Maryland official counted about 50 cars in the ditch on one stretch of highway.
By Monday, the storm had moved north into New England, and most areas in the storm's wake expected to see up to 12 inches (30 centimeters) of snow. The weather contributed to four deaths on roads in Massachusetts, Rhode Island and on Long Island.
Fears that the mass stranding on an Australian beach on Sunday was caused by human disturbance were raised because two species of cetacean came ashore simultaneously.
Most of the animals were pilot whales, but a number of bottlenose dolphins were also among the pod.
Charter boat captain Erik Rue, 42, photographed the animal, which is actually an albino, when he began studying it after the mammal first surfaced in Lake Calcasieu, an inland saltwater estuary, north of the Gulf of Mexico in southwestern USA.
Capt Rue originally saw the dolphin, which also has reddish eyes, swimming with a pod of four other dolphins, with one appearing to be its mother which never left its side.
The look suddenly appears after observing the front part of their heads for a moment or two. Two lines and two dots on their heads bear some resemblance to human eyes.
The local newspapers managed to snap some sensational pictures of the fish, which are about 80 centimeters long (more than three feet) and 50 centimeters (almost two feet) in circumference.