Early Morning Earthquake Hits Oklahoma

The third-largest earthquake in state history rattled central Oklahoma early Saturday and could be felt as far as Kansas, Missouri and Arkansas.

"We have reports of it being felt very widely, as far south as Plano, Texas, and up into Fort Leavenworth, Kan.," said Paul Caruso, a geophysicist with the U.S. Geological Survey in Golden, Colo.
Heather Spicer of Sapulpa, Okla., told the Oklahoman the quake woke her whole household, including the dog.

"At first I thought an airplane had crashed nearby," Spicer said. "But now I believe it was an earthquake because the whole house just kept vibrating with what sounded like distant thunder outside."

The 4.7 magnitude quake was reported at 2:12 a.m. with an epicenter about six miles north of Prague, Okla., about 50 miles east of Oklahoma City, according to the USGS. The quake was the third-largest in state history, Caruso said, following a temblor that shook Noble, Okla., on Oct. 13, 2010, and a 5.5 quake reported in El Reno, Okla., about 30 miles west of the capital, on April 9, 1952.

The quake was followed by at least nine aftershocks in the same area, Caruso said.

Space Shuttle Makes Final Landing

The space shuttle Atlantis landed in Florida this morning, completing the last of 135 missions over 30 years that delivered the Hubble telescope into orbit and helped build the International Space Station.

The four astronauts, led by Commander Chris Ferguson, touched down at the Kennedy Space Center in Cape Canaveral, Florida, at 5:56 a.m. New York time, after a 13-day mission.

With the shuttle’s return, the National Aeronautics and Space Administration leaves the business of low-Earth orbital flight and will use U.S. companies to develop spacecraft for taking people and cargo on short trips. It has partnerships with Boeing Co., Space Exploration Technologies Corp. and others to build such vehicles as it focuses on missions beyond the moon.

NASA “will take on the difficult and more risky challenges of deep-space exploration,” its administrator, Charles Bolden, said at a Federal Aviation Administration meeting on commercial space transportation May 11 in Washington.

The shuttle program began with the launch of Columbia in April 1981. Two orbiters were lost: Challenger exploded after liftoff in January 1986 and Columbia disintegrated on re- entering Earth’s atmosphere in February 2003.

Atlantis carried supplies and spare parts to the space station in its 12th visit to the orbiting outpost, which currently houses six crew members. U.S. shuttles made 46 trips to the station, built by the space agencies of the U.S., Russia, Europe, Japan and Canada.

The first flight of Atlantis, in October 1985, was a classified mission for the Defense Department. The spacecraft pioneered flights to the Russian space station Mir. In 1989, Atlantis was the first shuttle to launch a planetary probe, sending the Magellan spacecraft to Venus.

Atlantis will remain at the Kennedy Space Center and go on display at the visitors’ center. Discovery will go to a Smithsonian Institution facility in Virginia and Endeavour heads for the California Science Center in Los Angeles.