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A magnitude 7.7 earthquake struck a remote part of Pakistan with enough force to create a small island. On Tuesday, a 7.7-magnitude earthquake struck a remote part of western Pakistan, killing more than 260 people and displacing hundreds of thousands. Indeed, such islands are formed by so-called mud volcanoes, which occur around the world, and Barnhart and other scientists suspect that's what we're seeing off the Pakistani coast. News organizations have reported that the Pakistani island suddenly appeared near the port of Gwadar after the quake.
Media reports have located the new island at just a few paces to up to two kilometers off the coast of Pakistan. The island appears to be primarily made out of mud from the seafloor, although photos show rocks as well, Barnhart told National Geographic.
Barnhart said Pakistani scientists will soon be measuring the new landmass to better understand how it formed.
People walk along the island that emerged after a 7.7 magnitude earthquake struck a remote part of Pakistan. Seismic waves from the quake likely caused some fluid material under the seafloor to expand, Barnhart said.
The whole process is similar to liquefaction, Barnhart said, which is when seismic waves turn normally solid layers of soil into a flowing fluid, often with disastrous results for the buildings and people above. Although earthquakes have been known to radically reshape coastlines, the mud volcano off Pakistan is highly localized, Barnhart said.
A 9.5-magnitude earthquake off Chile in 1960 pushed whole villages several feet up in the air. This week's Pakistan earthquake was a strike-slip type, meaning there was only movement horizontally.

On Thursday the National Geographic Channel is featuring the Mogul earthquake swarm that shook Reno from February 28 to May 2008 with more than1000 small earthquakes. University of Nevada, Reno researchers, who continue to study the event, are featured in the special mini-documentary. The New Zealand earthquake broke an iceberg the size of 20 football fields off the country's longest glacier.
A huge vertical slab calved off the front of the Tasman Glacier (see map) into Tasman Lake after the 6.3-magnitude quake had hit Tuesday afternoon. The chunk is estimated to have been three-fourths of a mile (1,200 meters) long by 250 feet (75 meters) wide, scientists say.
Such an event is rare but not unprecedented, said Martin Truffer, a glaciologist at the University of Alaska's Geophysical Institute in Fairbanks, Alaska. Pieces of Alaska's Hubbard Glacier also broke off in 1958, following a large earthquake in the state's southeast. Furthermore, glaciers such as the Tasmana€”which calve into lakesa€”tend to be less crevassed, or cracked, at their ends than those that calve into the ocean. Even before the Christchurch earthquake, tourist guides were already being cautious about not approaching the glacier too closely, due to heavy rain in past weeks, the Herald reported. The rain had probably raised the lake level, which made it easier for large chunks to break off, Truffer explained. Ultimately the ice will melt, but in a cold, glacial lake, that could take as long as a year, he said. Using archive footage, computer animation and expert interviews, the characteristics of natural disasters are analysed.Tornadoes are spectacular to watch, but their destructive power is immense.
It also triggered formation of a new island off the coast, which has quickly become a global curiosity.

The island is about 60 to 70 feet (18 to 21 meters) high, up to 300 feet (91 meters) wide, and up to 120 feet (37 meters) long, reports the AFP. He has has been studying images and media accounts of the new island from his lab in Golden, Colorado.
The epicenter was too far from the coast to cause any widespread changes, and the earthquake was the wrong type to cause big uplifts. The temblor was centered about 125 miles (200 kilometers) away, near Christchurch (see map). This makes such lake-based glaciers more likely to lose big pieces of ice rather than smaller ones.
It's likely, he added, that the end of the glacier was floating, not anchored to the lake bed. Visit laboratories at the cutting edge of tornado science to see what is behind them.Volcanic eruptions are dramatic reminders that our world is a living planet. The unusual seismic activity is the subject of an episode on the National Geographic Channel’s “Naked Science” program at 10 p.m. In Washington state, Steve works with a stern hand to prep his family for the potential threat. South Carolinian David Appleton is a comedian, but the idea of a devastating earthquake is no joke to him.
His job doesn't always pay the bills, so David must Dumpster dive to find supplies to make a DIY camouflage net to hide his preps.

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