A new eruption has started at Nishinoshima volcano on April 20, 2017, the Japan Meteorological Agency reports. It was characterized by the ejection of white smoke from the vicinity of the crater in the center of the island and a lava flow. The last eruption of this volcano took place in November 2015.
The eruption was spotted by Japanese Coast Guard aircraft about 05:25 UTC (14:25 JST) on April 20, 2017, prompting authorities to issue an alert to vessels passing nearby.
According to the Tokyo VAAC, the volcanic ash was reaching 2.4 km (8 000 feet) by 08:00 UTC. At the time, the plume was not visible in satellite imagery and the Aviation Color Code was not raised.
Nishinoshima erupting on April 20, 2017. Credit: Japan Coast Guard
JMA said there is a possibility the eruption will continue and warned everybody not to approach within 1.5 km (0.93 miles) of the crater.
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 previous 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. The summit of the southern cone rises to within 214 m of the sea surface 9 km SSE.
Featured image: Nishinoshima eruption on April 19, 2017. Credit: Japan Coast Guard
Register/become a supporter
Your support is crucial for our survival. It makes this project fully self-sustainable and keeps us independent and focused on the content we love to create and share.
You'll receive your ad-free account for 20x faster browsing experience, clean interface without any distractions, ability to post comments without prior editorial check, all our desktop and mobile applications (current and upcoming) ad-free and with the full set of features available, a direct line of communication and much more. See all options.