·

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, create your ad-free account and support our journalism.

Share:


Your support makes a difference

Dear valued reader,

We hope that our website has been a valuable resource for you.

The reality is that it takes a lot of time, effort, and resources to maintain and grow this website. We rely on the support of readers like you to keep providing high-quality content.

If you have found our website to be helpful, please consider making a contribution to help us continue to bring you the information you need. Your support means the world to us and helps us to keep doing what we love.

Support us by choosing your support level – Silver, Gold or Platinum. Other support options include Patreon pledges and sending us a one-off payment using PayPal.

Thank you for your consideration. Your support is greatly appreciated.

Sincerely,
Teo Blašković

$5 /month

  • Ad-free account
  • Clean user interface and fast browsing
  • Direct communication with us via chat and email
  • Suggest new features, content and applications
  • Early access to new apps and features

$50 /year

$10 /month

  • Ad-free account
  • Clean user interface and fast browsing
  • Direct communication with us via chat and email
  • Suggest new features, content and applications
  • Early access to new apps and features

$100 /year

$25 /month

  • Ad-free account
  • Clean user interface and fast browsing
  • Direct communication with us via chat and email
  • Suggest new features, content and applications
  • Early access to new apps and features

$200 /year

You can also support us on Patreon

support us on patreon

or by sending us a one-off payment using PayPal:


Commenting rules and guidelines

We value the thoughts and opinions of our readers and welcome healthy discussions on our website. In order to maintain a respectful and positive community, we ask that all commenters follow these rules:

  • Treat others with kindness and respect.
  • Stay on topic and contribute to the conversation in a meaningful way.
  • Do not use abusive or hateful language.
  • Do not spam or promote unrelated products or services.
  • Do not post any personal information or content that is illegal, obscene, or otherwise inappropriate.

We reserve the right to remove any comments that violate these rules. By commenting on our website, you agree to abide by these guidelines. Thank you for helping to create a positive and welcoming environment for all.

Leave a reply

Your email address will not be published. Required fields are marked *