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As in the days of Noah...
The Bible declares in Matthew 24:7-8:"For there shall be earthquakes,in divers places.All these are the beginning of sorrows..."
CHEYENNE, Wyo.-Yellowstone National Park was jostled by a host of small earthquakes for a third straight day Monday, and scientists watched closely to see whether the more than 250 tremors were a sign of something bigger to come. Swarms of small earthquakes happen frequently in Yellowstone, but it's very unusual for so many earthquakes to happen over several days, said Robert Smith, a professor of geophysics at the University of Utah."They're certainly not normal," Smith said. "We haven't had earthquakes in this energy or extent in many years."Smith directs the Yellowstone Seismic Network, which operates seismic stations around the park. He said the quakes have ranged in strength from barely detectable to one of magnitude 3.8 that happened Saturday. A magnitude 4 quake is capable of producing moderate damage."This is an active volcanic and tectonic area, and these are the kinds of things we have to pay attention to," Smith said. "We might be seeing something precursory."Could it develop into a bigger fault or something related to hydrothermal activity? We don't know. That's what we're there to do, to monitor it for public safety."The strongest of dozens of tremors Monday was a magnitude 3.3 quake shortly after noon. All the quakes were centered beneath the northwest end of Yellowstone Lake.A park ranger based at the north end of the lake reported feeling nine quakes over a 24-hour period over the weekend, according to park spokeswoman Stacy Vallie. No damage was reported."There doesn't seem to be anything to be alarmed about,"Vallie said.Smith said it's difficult to say what might be causing the tremors. He pointed out that Yellowstone is the caldera of a volcano that last erupted 70,000 years ago.He said Yellowstone remains very geologically active-and its famous geysers and hot springs are a reminder that a pool of magma still exists five to 10 miles underground."That's just the surface manifestation of the enormous amount of heat that's being released through the system," he said.Yellowstone has had significant earthquakes as well as minor ones in recent decades. In 1959, a magnitude 7.5 quake near Hebgen Lake just west of the park triggered a landslide that killed 28 people.
Chinese President Hu Jintao (3rd L) smiles as he talks with family members of Ma Xizhi (2nd L) at Caijiagang Village of Xuankou Township in Wenchuan County, southwest China's Sichuan Province, Dec. 29, 2008. President Hu Jintao visited quake-hit Sichuan Province on Dec. 27-29, showing concern for survivors and inspecting reconstruction work. (Xinhua/Ju Peng)
CHARLESTON, S.C.-A weak earthquake shook parts of the South Carolina coast Tuesday, tipping over people's Christmas trees, knocking pictures off walls and causing minor injuries. The temblor with a preliminary magnitude of 3.6 was recorded at 7:42 a.m. northwest of Charleston, according to the Earthquake Hazards Program of the U.S. Geological Survey in Golden, Colo. The epicenter was about 4 miles from Summerville near a fault blamed for the deadly 1886 Charleston quake which killed more than 100.Summerville police Sgt. Cassandra Williams said the department had received no reports of damage but she felt the rattling herself for a few seconds."I was sitting in the parking lot getting my cup of coffee...and I felt my trunk shaking. I thought who in the world is shaking my trunk like that?"Dennis Clark, director of the Dorchester County Emergency Management Department, said his office received scattered reports of pictures falling from walls and Christmas trees tipping over.He said emergency workers responded to two reports of minor injuries. A pregnant woman fell during the shaking and worried about her unborn child. Also, a child fell out of a stool or high chair and hit his head.Initially, the earthquake's center was reported southeast of Goose Creek but was later adjusted farther northwest. It was about 3 miles below the earth's surface, said Carrieanne Bedwell, a seismologist with hazards program.The 1886 quake was a magnitude 7.3 destroying about $5 million worth of property, worth $103 million when adjusted for inflation.Bedwell said the last temblor in the Charleston area that could be felt was a 2.6 magnitude in November of 2005.Steve Jaume, an associate professor of geology at the College of Charleston, said between 20 and 30 earthquakes usually affect the area each year but most are so weak they can't be felt.As in the days of Noah...

TOKYO-A 6.1-magnitude earthquake struck off the coast of northern Japan on Thursday, the Meteorological Agency said. There were no immediate reports of damage or casualties.The quake hit Thursday morning off the coast of Miyagi, about 180 miles north of Tokyo, the agency said. It struck at a depth of about six miles.The agency said there was no danger of a tsunami from the earthquake.Masakazu Murakami, an official in charge of disaster management in Miyagi, said the quake caused no damage to utilities such as water, electricity, gas and telephone lines."I was in the office when the quake hit this morning. But I did not feel any tremors," Murakami said.A police official in Miyagi said authorities there had not received any reports of damage or casualties. The official spoke on condition of anonymity, citing department policy. Japan is one of the world's most earthquake-prone countries.The most recent major quake in Japan killed more than 6,400 people in the western port city of Kobe in January 1995.Experts believe Tokyo has a 90 percent chance of being hit by a major quake over the next 50 years.
LITTLE ROCK, Ark.-A series of small earthquakes that rattled central Arkansas in recent weeks could be a sign of something much bigger to come.By this weekend, seismologists hope to install three measurement devices to gather data about future temblors in the area.That information could show whether the rumbles come from heat-related geological changes or from an undiscovered fault-which could mean a risk of substantial earthquakes in the future."The potential for generating a high-magnitude earthquake is real," said Haydar Al-Shukri, director of the Arkansas Earthquake Center at the University of Arkansas at Little Rock.Five earthquakes ranging in magnitude from 2.2 to 2.7 have hit central Arkansas this month. Quakes with a magnitude of 2.5 to 3 are typically the smallest felt by people.While hundreds of earthquakes occur each year, including several in Arkansas, the location of the recent ones give Al-Shukri pause. Arkansas quakes generally occur in the state's northeast corner, part of the New Madrid Seismic Zone, where three temblors with magnitudes of around 8 struck during the winter of 1812 and smaller ones continue today.But central Arkansas does not have any seismic history, Al-Shukri said."It is abnormal. It is significant," he said. "We need to carefully watch this activity."The area does not have any permanent seismograph, so researchers asked the University of Memphis in Tennessee if they could use its portable equipment.The nearest seismographs aren't close enough to provide the detailed readings scientists need to determine what could be causing the tremors or properly locate their origin, said Scott Ausbrooks, the geohazard supervisor for the Arkansas Geological Survey."I don't know if you've looked at a map of where these events are located, but they've got a scatter on them," he said. "We're thinking this is probably the inherited error built in when you try to locate events of this small a magnitude from that far away."Ausbrooks said officials would install the three seismographs around Magnet Cove, a Hot Spring County community near where a magnitude-2.7 earthquake hit on Nov. 1. Residents told police dispatchers they heard what sounded like an explosion.One possible culprit could be a hydrothermal quake, caused by extremely hot fluid pushing into rocks under the surface. The hot fluid percolates into the cracks of the rocks and causes movement, Al-Shukri said.That theory matches the geologic history of the area. Central Arkansas is home to Hot Springs, a city that grew up around its namesake spas. The springs have 143-degree waters rushing to the surface continuously.If that's the case, the earthquakes likely wouldn't pose a drastic danger to the area, Al-Shukri said. At their strongest, such quakes reach only a magnitude of 5, the U.S. Geological Survey's threshold for "moderate."However, if the earthquakes are caused by a previously unknown fault, that could mean a much more powerful temblor in the future. A recently discovered fault in eastern Arkansas near Marianna caused an earthquake with a magnitude of between 7.2 and 7.5 in the past 5,000 years, Al-Shukri said. That could cause widespread, heavy damage."Now, it's not active, but in geologist time, that's yesterday," he said.Ausbrooks wouldn't speculate on what could be causing the earthquakes, saying he wanted to see what data the seismographs capture. However, he acknowledged an unknown fault could be running through the area."There are numerous faults across the state, both known and unknown," Ausbrooks said. "This area has got a lot of faults associated with it from the mountain building of the Ouachitas, but they're considered inactive."
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JAKARTA-Indonesia launched a new hi-tech system Tuesday aimed at detecting a potential tsunami and providing faster alerts in a region battered by frequent earthquakes.The sprawling archipelago of some 17,000 islands, which lies in the seismically-active "Pacific Ring of Fire," was hit by a devastating tsunami about four years ago that left an estimated 170,000 people dead or missing in Aceh province.Since then, Indonesia has installed some warning systems, but experts have said the country's disaster preparedness is still a work in progress and large parts of the country are still not covered.The new system, built with assistance from foreign bodies including the German Research Center for Geosciences, will use sensors placed on the seabed and shore to relay details of seismic movements to buoys on the surface.The information is then transmitted via satellite to a tsunami early warning center in Indonesia."We are starting the world's most advanced tsunami early warning system able to issue the quickest possible warnings with a high degree of reliability," Thomas Rachel, Germany's parliamentary state secretary, said at the launch in Jakarta.The system will be fully operational by 2010.Since the 2004 tsunami, Indian Ocean countries have installed expensive warning systems and stage periodic evacuation drills to prepare better for another such disaster.Indonesia's early warning system has two out of a total of 10 buoys in place and another four buoys will be installed soon to optimize the system, scientists said.The government aims to deliver tsunami alerts within five minutes of an undersea quake, but experts have said that cannot be achieved until Indonesia has installed at least 22 buoys, 120 tide gauges with digital recordings, and 160 seismographs."This tsunami early warning system signifies our progress and readiness in efforts to prevent or at least reduce the effects of earthquakes and tsunamis which can happen anytime and anywhere," President Susilo Bambang Yudhoyono said at the launch.
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TEMECULA, Calif.-A moderate earthquake struck early Monday in a remote area of the Cleveland National Forest in northern San Diego County.There were no reports of damage or injury.The magnitude-4.1 temblor struck at 4:35 a.m. about 10 miles north of the Palomar Observatory and about 20 miles east of the Riverside County community of Temecula, according to the U.S. Geological Survey.It was followed by a magnitude-3.8 aftershock five hours later, the USGS said.The observatory was closed when the quake struck."We gave the place a once over," said spokesman Scott Kardel. "It doesn't look like there was any damage at all."The quake was felt from San Diego to Palm Desert, said Caltech seismologist Anthony Guarino.
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JAKARTA-A powerful earthquake struck an area off Indonesia's northern Sulawesi early on Monday, killing at least four people and injuring nearly 60 after hundreds of houses collapsed, a disaster official said.Indonesia briefly issued a tsunami warning which was lifted later, the meteorological office said.The magnitude 7.5 quake was at a depth of 21 km, with its epicenter 136 km (84 miles) northwest of the provincial capital of Gorontalo, the U.S. Geological Survey said.A series of further weaker aftershocks struck in the same area of the Celebes Sea bordering the southern Philippines.Rustam Pakaya, head of the Indonesian health ministry's crisis center, said information so far showed four people had died, one in Gorontalo after a building collapsed and three in the district of Buol in Central Sulawesi province.He said 59 people were injured.Around 800 houses were damaged in Buol, Pakaya said, adding there were reports of collapsed schools and homes in Gorontalo.In more remote parts of Indonesia with sketchy communications it often takes time for assessments of damage or casualties to arrive.A telephone operator in Gorontalo said the quake could be felt strongly in the city."It felt quite big and caused panic," the operator told Reuters, adding that the telephone network had been disrupted.The latest aftershock came at 2233 GMT, measuring 5.1 on the Richter scale, the meteorological agency said.Residents had fled to higher ground in some areas.In the town of Poso in central Sulawesi, residents rushed out of their houses and patients were evacuated from a hospital, Metro TV reported.Schools were also closed in some areas of Sulawesi, Elshinta radio station reported.An official at the Philippine Institute of Vulcanology and Seismology, the country's main earthquake watching agency, said it had also issued a tsunami alert after the quake."We lifted a tsunami alert at 4:05 a.m. after we determined that it would not affect our southern coast," said Joan Salcedo, adding that the agency did not record any quake or aftershocks in the Philippines related to the Sulawesi tremor.Indonesia launched a new hi-tech system on Tuesday aimed at detecting a potential tsunami and providing faster alerts in a region battered by frequent earthquakes, though experts say large parts of the country are still not covered and the system will not be fully operational until 2010.The sprawling archipelago of some 17,000 islands, which lies in the seismically active "Pacific Ring of Fire," was hit by a devastating tsunami four years ago that left an estimated 170,000 people dead or missing in Aceh province.
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ATHENS, Greece - For thousands of years the Acropolis has withstood earthquakes, weathered storms and endured temperature extremes, from scorching summers to winter snow. Now scientists are drawing on the latest technology to install a system that will record just how much nature is affecting the 2,500-year-old site. They hope their findings will help identify areas that could be vulnerable, allowing them to target restoration and maintenance.Scientists are installing a network of fiber optic sensors and accelerographs — instruments that measure how much movement is generated during a quake.
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