Earth Changes
Bats are filtering out of a cave there by the minute.
But step inside and it's another story.
More than 20,000 dead bats are piled upon the cave's floor.
"It's pretty eerie and disturbing to say the least," said Ryan Smith of the U.S. Fish and Wildlife Dept. "You pretty much can't walk without stepping on them."
Their goal: gauge the potential for future activity.
If a quake the magnitude of 6.5 or larger is possible, such an event could devastate the city and surrounding communities, including St. George, according to William Lund, a geologist with the Utah Geological Survey.
"There would be a lot of damage from shaking," said Lund. "Unreinforced buildings would collapse, interiors would be disrupted and things fall off shelves."
He said there is also danger of broken natural-gas lines causing fires and the liquefaction, or jelly-like shaking of the subsoil, that can trigger landslides.

A dust storm off the coast of Morocco was imaged by NASA's MODIS Aqua meteorological satellite on March 12, 2009. A new study by UW-Madison researcher Amato Evan shows that variability of African dust storms and tropical volcanic eruptions can account for 70 percent of the warming North Atlantic Ocean temperatures observed during the past three decades. Since warmer water is a key ingredient in hurricane formation and intensity, dust and other airborne particles will play a critical role in developing a better understanding of these storms in a changing climate.
Since 1980, the tropical North Atlantic has been warming by an average of a quarter-degree Celsius (a half-degree Fahrenheit) per decade. Though this number sounds small, it can translate to big impacts on hurricanes, which thrive on warmer water, says Amato Evan, a researcher with the University of Wisconsin-Madison's Cooperative Institute for Meteorological Satellite Studies and lead author of the new study. For example, the ocean temperature difference between 1994, a quiet hurricane year, and 2005's record-breaking year of storms, was just one degree Fahrenheit.
More than two-thirds of this upward trend in recent decades can be attributed to changes in African dust storm and tropical volcano activity during that time, report Evan and his colleagues at UW-Madison and the National Oceanic and Atmospheric Administration in a new paper. Their findings will appear in an upcoming issue of the journal Science and publish online March 26.

Residents stand near a burst dam in Jakarta, Indonesia, Friday, March 27, 2009.
Days of torrential downpours had filled a large lake bordering the low-lying residential area southwest of the Indonesian capital to flooding point. A huge section of the Dutch colonial-era dike tore away at around 2:00 a.m.
More than 70 million cubic feet (2 million cubic meters) of water roared through the gaping hole, nearly emptying the lake's basin and inundating homes up to the rooftops. Bodies were dragged several miles (kilometers) in the muddy current.
The agonizing decision to stay or go came as the final hours ticked down before an expected crest Saturday evening, when the ice-laden river could climb as high as 43 feet, nearly 3 feet higher than the record set 112 years ago.
"It's to the point now where I think we've done everything we can," said resident Dave Davis, whose neighborhood was filled with backhoes and tractors building an earthen levee. "The only thing now is divine intervention."
Friday, March 27, 2009 at 10:53:03 AM at epicenter
Location 18.654°N, 107.379°W
Depth 10 km (6.2 miles) set by location program
Distances 310 km (195 miles) SW of Puerto Vallarta, Jalisco, Mexico
325 km (200 miles) W of Manzanillo, Colima, Mexico
340 km (210 miles) WSW of Autlan, Jalisco, Mexico
870 km (540 miles) W of MEXICO CITY, D.F., Mexico

This sea turtle got caught in a fishing net off Diani, Kenya. The turtle was freed and released, but others have died. Daniel Floren, who runs a local diving school, says the U.S.-funded nets are destroying the very ecosystems that fishermen rely on.
One recent victim was a huge dappled whaleshark that bled to death after its tail was cut off by fishermen unwilling to slash their nets to save it. In another case, divers risked their lives to free a pregnant, thrashing humpback whale entangled in a net last summer.
Both incidents occurred off Diani beach, which is popular with American and European tourists.
The fishermen have traditionally used hooks and hand lines to haul in their catch, which they then sold to hotels full of tourists. But the use of plastic nets has become increasingly common as growing populations have competed to catch shrinking supplies of fish, marine biologist David Obura said.
In 2003, USAID began a four-year project worth $575,000 to improve the lives of coastal communities. It worked on a project with a Kenyan government agency that included providing freezers for the fishermen to store their catch, along with boats and nets.
But the plastic nets are destroying the very ecosystems that the fishermen depend on and the tourists come to see, said Daniel Floren, who runs a local diving school.
Officials, experts and even the fishermen themselves acknowledge the nets are killing wildlife and coral.
"Without the reefs, there will be no diving. If we have nothing to show, I'll have to shut up shop," Floren said.
The prehistoric creature has scaly skin similar to a crocodile and an impressive set of teeth.
It was found, already dead, by schoolboy fisherman Shawn Brown in the Grand Union Canal at Wigston.
The 14-year-old took a picture of his 10 ins-long discovery and showed it to a number of aquarists who managed to identify it.
The armoured suckermouth catfish normally lives in Panama, Costa Rica and South America.

At the Fargodome in North Dakota, hundreds of thousands of sandbags were filled in an effort to prepare for the crest of the Red River.
In fact, hundreds of homeowners now could find their properties sandwiched between the city's first 12-mile-long dike and the new line of defense. Record water levels are expected by Friday afternoon.
"What you're saying here is that we're on the wrong side of the world?" Laura Krupich, a resident of the South Acres neighborhood in Fargo, asked a city commissioner as she found her house on a map showing the new earthen and sandbag levees.
Ms. Krupich's house, according to city planners' estimates, may not be protected by the city's second "contingency" dikes. There was even concern that houses between the two sets of dikes could be in particular danger if the first one breaks but the second one holds.
Friday, March 27, 2009 at 02:48:18 AM at epicenter
Location 17.580°N, 100.522°W
Depth 49 km (30.4 miles) set by location program
Distances 80 km (50 miles) SSW of Arcelia, Guerrero, Mexico
105 km (65 miles) NW of Acapulco, Guerrero, Mexico
110 km (65 miles) W of Chilpancingo, Guerrero, Mexico
250 km (155 miles) SW of MEXICO CITY, D.F., Mexico