It was found that a small amount of pumice stones were washed ashore on Shikinejima in the Izu Islands and were recovered at the port.
It is not known if it belongs to the submarine volcano of the Ogasawara Islands, which seems to have been washed ashore on the coast of Okinawa Prefecture, but the local governments of Tokyo and the Izu Islands are considering countermeasures.
According to JAMSTEC = Japan Agency for Marine-Earth Science and Technology, a large amount of pumice stones that are thought to have erupted from the eruption of a submarine volcano in the Ogasawara Islands are expected to approach the Izu Islands by the end of this month.
Under these circumstances, it was found that something like pumice was washed ashore on Shikinejima in the Izu Islands on the 10th.
According to Niijima Village, which has jurisdiction over Tokyo and the island, pumice stones are large, about 1 cm long, and about 3 buckets were collected at the island's fishing port, but it is known that they belong to the submarine volcano of the Ogasawara Islands. It means that it is not.
In addition, there was sighting information of drifting objects such as pumice stones in the waters near Mikurajima.
So far, no impact on ship navigation has been confirmed.
On the other hand, Kozushima Village has decided to cooperate with the Tokyo Metropolitan Government to take measures to prepare for drifting, such as purchasing an oil fence to prevent the invasion of pumice stones into the port and informing residents not to touch the pumice stones with their bare hands. rice field.
The local governments of the Tokyo Metropolitan Government and the Izu Islands are considering further measures.