·

Prof. Maeno warns Nishino-shima collapse may generate a tsunami

prof-maeno-warns-nishino-shima-collapse-may-generate-tsunami

According to media reports, Fukashi Maeno, assistant professor of the Earthquake Research Institute at the University of Tokyo, warned that if lava continues to mount on growing volcanic island Nishino-shima, Japan's Ogasawara archipelago, parts of the island's slopes could collapse and generate a dangerous tsunami.

Craters on the island are currently spewing out 200 000 m3 (7 million ft3) of lava every day.

A rockfall of 12 million m3 of lava would generate 1 meter (3 feet) tsunami which would reach the island of Chichijima, located some 130 km away, in around 18 minutes, he warned.

During an underwater volcano eruption on November 21, 2013, a new island – Niijima – was born in Ogasawara archipelago and started merging with nearby Nishino-shima island. The two islands soon became one and although it is still just slightly over 1 km, Nishino-shima continues to grow and the eruption is still in progress.

Nishino-shima, location 27.247°N 140.874°E.

According to Japan Coast Guard, and based on observations conducted on March 24, 2014, the island was about 1 150 m from East to West and about 850 m from North to South.

Acquired on March 24, 2014. Image courtesy of Japan Coast Guard.

A new island is born

This is how it looked like when Niijima was born and started merging with Nishino-shima.

Acquired on December 24, 2013. Image credit: NASA / Earth Observatory (ALI – EO-1). 

Acquired on December 8, 2013. Image credit: NASA / Earth Observatory (ALI – EO-1). 

Images of an eruption taken on November 21, 2013. Image courtesy of Japan Coast Guard.

The following image is from July 23, 2014, less than a month ago. The island is still growing and the volcanic eruption is still underway.

Nishino-shima on July 23, 2014. Image credit: Japan Coast Guard

Featured image: Japan Coast Guard

If you value what we do here, open your ad-free account and support our journalism.

Share:

Producing content you read on this website takes a lot of time, effort, and hard work. If you value what we do here, select the level of your support and register your account.

Your support makes this project fully self-sustainable and keeps us independent and focused on the content we love to create and share.

All our supporters can browse the website without ads, allowing much faster speeds and a clean interface. Your comments will be instantly approved and you’ll have a direct line of communication with us from within your account dashboard. You can suggest new features and apps and you’ll be able to use them before they go live.

You can choose the level of your support.

Stay kind, vigilant and ready!

$5 /month

  • Ad-free account
  • Instant comments
  • Direct communication
  • New features and apps suggestions
  • Early access to new apps and features

$50 /year

$10 /month

  • Ad-free account
  • Instant comments
  • Direct communication
  • New features and apps suggestions
  • Early access to new apps and features

$100 /year

$25 /month

  • Ad-free account
  • Instant comments
  • Direct communication
  • New features and apps suggestions
  • Early access to new apps and features

$200 /year

You can also support us by sending us a one-off payment using PayPal:

Leave a reply

Your email address will not be published.