Monday, September 30, 2013

NASA releases images of pakistan's "EarthQuake Island"

Information


NASA releases images of pakistan's "EarthQuake Island"





Amidst the destruction caused by the devastating earthquake in Pakistan
that killed more than 500 people, a new island emerged from the depth of
the sea. NASA has released images of the newly formed islet.


NASA has released before and after photos of a new terrestrial body that was
born on September 24 during a quake that struck Pakistan.


Called Zalzala Jazeera, or a an earthquake island, the terrestrial formation can
now be found 380 kilometers from the earthquake’s epicenter in Paddi Zirr Bay near
Swadar, Pakistan in the Arabian Sea.


The first image of the island was taken by NASA’s Earth Observing-1 satellite on
September 26, while the second snapshot shows the same bay on April 17 with water and
no landmass around the coordinates that the new island now inhabits.








Photo from: Library of most controversial files and NASA







Photo from: Library of most controversial files and NASA



According to scientists, the depth of the water level around Zalzala Jazeera
stands at about 15 to 20 meters, stretching 75 to 90 meters across. It lies
approximately one mile from the shore. Scientists say the island is nothing more
than just a pile of mud, sand and solid rock that was caused by the forces of highly
pressurized gas.


“The island is really just a big pile of mud from the seafloor that got pushed up.
This area of the world seems to see so many of these features because the geology is
correct for their formation. You need a shallow, buried layer of pressurized gas—methane,
carbon dioxide, or something else—and fluids. When that layer becomes disturbed by
seismic waves (like an earthquake), the gases and fluids become buoyant and rush to the
surface,bringing the rock and mud with them,”
Bill Barnhart, a geologist at the
US Geological Survey told NASA’s Earth Observatory.


The Earth Observatory says this is not the first island to have surfaced along the
700-kilometer-long coast over the past century. Scientists predict that the
new island will remain above surface for up to a year before sinking back into
the Arabian sea.


The island rose out of the water during a 7.7-magnitude earthquake that struck Balochistan,
just 69 km north-northeast of Awaran - the nearest Pakistani city - on 24 September 2013.
Over 300,000 people were affected by the quake, which caused over 500 deaths, and some 21,000
houses were destroyed.








People use boats as they visit an island that rose from the sea following an earthquake, off Pakistan's Gwadar coastline in the Arabian Sea September 25, 2013.(Reuters / Stringer)

No comments:

Post a Comment