Nishinoshima is a volcanic island located in the Ogasawara archipelago, south of Tokyo, Japan that had been expanding since its eruption in 2013. Nishinoshima looks like a small island, but this is actually the summit of a huge seamount that rises more than 3 km (1.8 miles) from the seafloor.
This video, made by the Earthquake Research Institute at the University of Tokyo, talks about the latest findings by volcanologists.
Video courtesy University of Tokyo/Earthquake Research Institute.
The video is participating in the event Science AGORA2020 — November 15 – 22, 2020.
The small island of Nishinoshima was enlarged when several new islands coalesced during an eruption in 1973/74.
Another eruption that began offshore in 2013 completely covered the previously exposed surface and enlarged the island again. Water discoloration has been observed on several occasions since.
The island is the summit of a massive submarine volcano that has prominent satellitic peaks to the S, W, and NE.
A series of powerful eruptions were recorded in July and August 2020.
Nishinoshima on July 11, 2020. Image credit: JMA
Nishinoshima on June 29. Image credit: JCG
For more information about recent eruptions at Nishinoshima, visit watchers.news/tag/nishinoshima.
Featured image: Nishinoshima on October 28, 2020. Credit: Japan Coast Guard/3rd Regional Coast Guard Headquarters
If you value what we do here, create your ad-free account and support our journalism.
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!