AlArabiya
Aviation and Transport
Russia Ukraine conflict
Iran Sanctions
In this photo released by the Pakistani Government, Pakistani men walk on an island that appeared 2 kilometres off the coastline of Gwadar on September 25, 2013, after an earthquake the day before. (AFP)
The mystery of Pakistan's new quake island
Follow Followed Unfollow
AFP, Gwadar
Published: 25 September ,2013: 12:00 AM GST Updated: 20 May ,2020: 10:40 AM GST
Enable Read mode
100% Font Size
A small island created in the Arabian Sea by the huge earthquake that hit southwest Pakistan has fascinated locals but experts say it is unlikely to last long.
The 7.7-magnitude quake struck on Tuesday in Baluchistan's remote Awaran district, killing more than 200 people and affecting hundreds of thousands.
Off the coastline near the port of Gwadar, some 400 kilometers from the epicenter, locals were astonished to see a new piece of land surface from the waves.
"It is not a small thing, but a huge thing which has emerged from under the water," Gwadar resident Muhammad Rustam told AFP.
"It looked very, very strange to me and also a bit scary because suddenly a huge thing has emerged from the water."
Mohammad Danish, a marine biologist from Pakistan's National Institute of Oceanography, said a team of experts had visited the island and found methane gas rising.
"Our team found bubbles rising from the surface of the island which caught fire when a match was lit and we forbade our team to start any flame. It is methane gas," Danish said on GEO television news.
The island is about 18 to 21 meters high, up to 91 feet wide and up to 36 meters long, he said. It sits about 200 meters away from the coast.
Gary Gibson, a seismologist with Australia's University of Melbourne, said the new island was likely to be a "mud volcano," created by methane gas forcing material upwards during the violent shaking of the earthquake.
"It's happened before in that area but it's certainly an unusual event, very rare," Gibson told AFP, adding that it was "very curious" to see such activity some 400 kilometers from the quake's epicenter.
The so-called island is not a fixed structure but a body of mud that will be broken down by wave activity and dispersed over time, the scientist said.
A similar event happened in the same area in 1945 when an 8.1-magnitude earthquake at Makran triggered the formation of mud volcanoes off Gwadar.
Professor Shamim Ahmed Shaikh, chairman of the department of geology at Karachi University, said the island, which has not been named, would disperse within a couple of months.
He said it happens along the Makran coast because of the complex relationship between tectonic plates in the area. Pakistan sits close to the junction of three plates - the Indian, Arabian and Eurasian.
"About a year back an island of almost similar size had surfaced at the similar distance from the coast in the Makran region. This would disperse in a week to a couple of months," Shaikh told AFP.
Gibson said the temporary island was very different from the permanent uplift seen during major "subduction zone" earthquakes, where plate collisions force the Earth's crust suddenly and sometimes dramatically upwards.
For example, in the massive 9.5-magnitude earthquake in Chile in 1960 - known as the world's largest ever - whole fishing villages were thrust "several meters" upwards and wharves suddenly located hundreds of meters inland, Gibson said.
Such uplift events are relatively common in the Pacific's so-called "Ring of Fire," a hotbed of seismic and volcanic activity at the junction of several tectonic plates.
A thundering 8.0-magnitude quake in the Solomon Islands in 2007 thrust Ranogga Island upwards by three meters, exposing submerged reefs once popular with divers and killing the vibrant corals, expanding the shoreline outwards by several meters in the process.
During the massive 9.2-magnitude earthquake off Sumatra which triggered a devastating tsunami across the Indian Ocean in 2004, several islands were pushed upwards while others subsided into the ocean.
The Aceh coast dropped permanently by one meter while Simeulue Island was lifted by as much as 1.5 meters, exposing the surrounding reef which became the island's new fringe.
Get the latest stories from AlArabiya on Google News
Quake in southwest Pakistan kills more than 200 people
The death toll from a strong earthquake that struck southwestern Pakistan on Tuesday has risen to more than 200, a spokesman for the provincial ... Asia
US senator blasts Turkey's Erdogan, calls for sanctions and no F-16s
Saudi, UAE workforce confidence on right track despite economic challenges: LinkedIn
Blinken stresses countering Iran, affirms need for two-state solution to Netanyahu
Saudi Crown Prince will be 'one of most important leaders of his time': Pompeo
Top Content Trending
Doctor warns of 'Ozempic face' side effect of diabetes drug used for weight loss
Young couple in Iran sentenced to 21 years for dancing in public video: Report
Sikh separatist movement gains steam in Australia, Canada; Hindu temples vandalized
February birthdays: Dubai's Burj Khalifa to display daily greetings for entire month
German-Iraqi woman murders Algerian look-alike to fake own death
Teen falls asleep playing hide and seek in Bangladesh, wakes up in Malaysia
Iran says explosion at military site in Isfahan caused by drone attack
Finland hints at Russia's involvement in Quran-burning protest in Sweden
Free four-day visa introduced for Saudi Arabia air travelers
Ronaldo's partner Georgina celebrates 29th birthday at Armenian restaurant in Riyadh
American multi-millionaire, 45, spends $2 million every year to look, feel like teen
Israeli PM Netanyahu says considering military aid to Ukraine, mediation
Interview with Chairman of the Saudi National Bank
Parents need not search children's poop if they swallow small toys: Doctor-led study
Friday the 13th proves lucky for $1.35 bln lottery ticket holder in US
3 minutes (Reading time)
Home Variety
About Al Arabiya Network
© Copyright. Al Arabiya Network. 2023
This website uses "cookies":
We use cookies to improve your experience on our site and to show you personalized advertising. To continue browsing, please click 'OK, I Accept'.
For more information, please read our Privacy Policy