Saturday, January 28, 2023

Underwater Volcanic Eruption Could Create Temporary Island


Article Courtesy:

A turquoise plume interrupted dark swaths of ocean when an underwater volcano erupted off the coast of Tongatapu, the main island of the Polynesian archipelago Tonga, a new satellite image shows.

Murray Ford, a coastal geologist at the University of Auckland in New Zealand, was reviewing satellite images of a young island in Tonga when he noticed a turquoise spot in the ocean. Murray determined that the plume was an underwater volcano actively erupting, according to NASA officials at the agency’s Earth Observatory. The satellite image, captured Jan. 27 by the Landsat 8 satellite, shows the plume coming from a seamount located 20 miles (33 kilometers) from Tongatapu.

The ocean water’s discoloration to vibrant turquoise is caused by the underwater volcano’s release of gases, rocks and volcanic fluids during its eruption, according to NASA. Based on other images collected in the area, the agency estimates that the eruption began on Jan. 23. [Axial Seamount: Images of an Erupting Undersea Volcano]

“It may continue for some days or weeks, and an island may form temporarily,” Martin Jutzeler, a geologist at the University of Tasmania who studies underwater eruptions, said in a statement. “However, new volcanic islands are easily eroded by wave action.”

Underwater eruptions are common in the Tonga region, which is part of the Tonga-Kermadec volcanic arc and the so-called Pacific Ring of Fire, an area in the Pacific Ocean where several tectonic plates meet, causing earthquakes and volcanic activity. The latest eruption plume most likely came from a seamount that geologists call “Submarine Volcano III,” which has erupted in 1911, 1923, 1970, 1990 and 2007, according to NASA officials.

Though the eruption is underwater, NASA officials warned that the volcanic activity can pose a hazard to ships. Underwater eruptions produce pumice, a light, porous rock that floats to the surface and can clog ship engines.


Editorial Team of Indian Ruminations.


Please enter your comment!
Please enter your name here




Revisiting Ambedkar’s Vision of ‘United States of India’: Can It Stand as Modern India’s Viable Alternative?

In April 2020, Thiruvananthapuram MP Shashi Tharoor waded into the debate, arguing that a Presidential system would prevent the “one-man show” that the Indian system has evolved into. The proponents of this line of thought also cite the United States' (relative) political stability as one of the key reasons to support their argument. The proposal challenges the Indian Constitution’s “Basic structure doctrine” decided by the Supreme Court in the Kesavananda Bharathi case. However, this requires further examination: a Presidential form of government might fix some of India’s political gridlock, but it may also open Pandora’s Box, releasing a whole wake of issues in its place. This includes a politically biased Supreme Court and horse-trading of MPs on a scale unheard in Indian politics.

Reconstructing our solidarity with the farmers’ protest

The controversial farm laws brought by the union government are essentially about the agricultural market. As the domains (Agriculture and the...

Sharapova: Victim of Fate or of False Regulatory Mechanism?- Dr. Razeena Kuzhimandapathil, Kerala

Maria Yuryevna Sharapova definitely had a controversial career both inside and outside tennis courts. She has the talent that...

Must read

Reviewing ‘Obsession and Wild Pigeon’ by Ismat Chughtai

My interest in Ismat Chughtai developed when I first...
- Advertisement -spot_img

You might also likeRELATED
Recommended to you