Japan: A new island had appeared in the Ogasawara Islands

A volcanic eruption in the waters south of Japan has produced a new island, and while it's uncertain if it will last, it could become a permanent new part of the nation's territory.

On Wednesday morning, November 20 2013, the first indications of the eruption reached the public, as Japan's coast guard issued a warning about smoke rising from the area. Footage filmed by the coast guard and shown on Tokyo TV showed up very shortly after.

The island apparently measures about 200 metres wide at the moment, and it joins an island chain known as the Ogasawara Islands, which is a mostly uninhabited archipelago about 1,000 km to the south of Tokyo.

This is the second island to sprout from ocean waters in recent times. A mud volcano was credited with creating a small island off the coast of Pakistan after a major earthquake shook the country's southern mountains in late September.



ZetaTalk: Japan

"The folding of the Pacific (whereby the Marian Trench folds against the Mariana Plate, which folds against and under the Philippine Plate, which folds against and under the plate tongue holding Indonesia) will of course involve Japan in the shocks. How would this not be so? The Philippine Plate is also pushing under the south island of Japan, and the point of juncture at Mount Fiji, a three-plate boundary where the Pacific and Philippine plates slide past each other, will be a focus. The south island will have jolts as the Philippine Plate tilts and pushes under it, and Mount Fiji will also receive jolts as the Pacific Plate reverberates from having the Philippine Plate scrape along its side. These quakes we would place in the magnitude of 8, though they will be downgraded to be in the range of magnitude 7. The north island shocks will be worse, as the Pacific Plate is not going to tilt the way the Philippine Plate did, thus it will ram its way under the north island. Here is where the great shocks will occur, where they will unquestionably be called of a magnitude 8 but will in truth be more akin to magnitude 9 quakes."


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Comment by Howard on May 24, 2014 at 5:16am

New Volcanic Island Off Japan Grows By 5 Times (May 19)

A remote island off the coast of Japan is bucking the trend of coastal erosion by gradually expanding due to lava which continues to flow from an active volcano.

The first eruption on the island of Nishinoshima in fourty years began in the seabed to the southeast of the island on 20 November 2013, and shortly afterwards a new land mass created by solidified lava merged with the island.

The island is now almost five times larger than it was before the eruption began.

Professor Kenji Nogami from Tokyo Institute of Technology says lava is continuing to flow from several locations on the newly expanded island.

Steam can be seen rising on the shore where lava comes into contact with seawater there.

Mr Nogami said it is unusual for a Japanese volcano to keep releasing lava for six months, and he is very surprised.

Mr Nogami added that the lava will continue flowing for a while and that the island is likely to keep expanding.

He said the continuous lava flow is a mystery and researchers will need to monitor the island and take rock and gas samples to learn more about the volcanic activity.

University of Tokyo Earthquake Research Institute assistant professor Fukashi Maeno said, "We can't tell when the eruption will stop, and the island is likely to continue growing."




Comment by Howard on April 7, 2014 at 3:14am

New Volcanic Island Off Japan Consumes Neighboring Island (Apr 6)

As a seafloor volcano continues to erupt in a remote part of the Pacific Ocean, a newborn island has swallowed its neighbor whole, images from space show.

In November 2013, a baby volcanic island rose from the sea out of a volcanic blast in the Bonin Islands about 620 miles (1,000 kilometers) south of Tokyo, on the western edge of the Pacific "Ring of Fire," a hotbed of seismic activity. Named Niijima, the newcomer boiled the sea and spewed steam, ash and lava fragments into the air.

Some thought the small black cone — which sprouted just offshore of a larger volcanic island called Nishino-shima — might slip back into the sea, vanishing under pounding waves. But Niijima kept growing.

Now a satellite image taken March 30, 2014, by the Operational Land Imager on Landsat 8 shows that Niijima has actually overtaken Nishino-shima.

Together, the conjoined islands measure about 3,280 feet (1,000 meters) across, officials with NASA's Earth Observatory said. The landmass has also tripled in height since December, now rising more than 196 feet (60 m) above sea level.




Comment by Howard on February 22, 2014 at 7:32pm

New Volcanic Island Off Japan Doubles in Size and Elevation (Feb 16)

The island continues to grow by progressing lava flows into several directions, as the latest images by the Japanese Coast Guard from 16 Feb show.

Its highest peak, formed by the western of the 2 active vents, was measured at 66 m, i.e. it now reached almost twice the height of the peak of the old island.

The new addition has more than doubled the size of the island so far.

It also formed a black-sand beach on the NE shore of the old part, as a result of lava fragments washed up by currents and waves. 



Comment by Howard on January 24, 2014 at 11:45pm

New Volcanic Island Expands Japan's Territorial Waters (Jan 24)
The new volcanic landmass, left, has grown 1.5 times larger than the original Nishinoshima island, right, and continues to expand westward. The photo was taken Jan. 20.

Japan's new volcanic island is growing so large, it could extend the range of Japan’s territorial waters.

Lava flows on the new isle that connected to a neighboring island in the Ogasawara chain south of Tokyo are redefining the borders of Japan’s exclusive economic zone (EEZ).

The small island, which emerged two months ago, has grown 1.5 times the size of Nishinoshima island, with which it became connected on Dec. 25, the Japan Coast Guard said.

According to the coast guard’s aerial observation Jan. 20, the new part of Nishinoshima island measures 0.3 square kilometers--seven times larger than Tokyo Dome stadium. It is 750 meters east to west, and 600 meters north to south.

The continuous lava flows spreading toward the west are widening Japan’s EEZ by a few square kilometers.

The EEZ in the west part of Nishinoshima extends to a distance of 200 nautical miles (370 km) out from the original coastline.

Based on the coast guard’s observation, the growing volcanic part of Nishinoshima expands the boundary of the EEZ up to 100 meters toward the west over a 100-km north-south section.

Additionally, Japan’s territorial waters, a zone extending 12 nautical miles (22 km) from the coastline, are also expected to widen by 10 square km toward the west, south and east.

More accurate figures for the expansion of Japan’s territorial waters will be measured once volcanic activity settles down on the landmass, said the coast guard.




Comment by Howard on January 2, 2014 at 12:43am

New Volcanic Island Off Japan Keeps Growing, Melds into Existing Island (Dec 26)
A smouldering islet created by undersea volcanic eruptions off Japan's Pacific coast has melded to a nearby island, the Japanese coastguard said Thursday.

Officials overflying the new landmass said it had merged at two points with Nishino-shima, an uninhabited volcanic island in the Ogasawara (Bonin) chain, some 1,000 kilometres south of Tokyo.

Two craters on the islet have been erupting "at an interval of 30 seconds to one minute," spewing brown smoke about 100 metres high, a coastguard statement said.

Pale volcanic gas and ash-grey smoke are also oozing out.

The islet was first spotted on November 20, some 200 metres from Nishino-shima, which is estimated to be 10 million years old.

It is now sized about 450 metres from east to west and 500 metres from north to south, with ground space measuring about 0.15 square kilometres, the statement said.

"The amount of volcanic smoke has apparently grown with a continuous flow of lava," Tokyo Institute of Technology geology professor Kenji Nogami reported from the plane.

"The supply of magma from the deep subsurface is presumably increasing."

Similar eruptions in the early 1970s and mid-80s created tiny islets in Japan's territory that have since been partially or completely eaten up by the ocean.

While the new formation is in uncontested waters, its emergence comes as Tokyo is embroiled in a row with Beijing over the sovereignty of a small archipelago in the East China Sea. The sudden appearance sparked quips from ministers about the expansion of Japan's territorial waters.



Comment by Khan on December 21, 2013 at 7:05am

6)Mountain buildings at the islands of southern Japan.

Comment by Khan on December 7, 2013 at 1:44am

Comment by Khan on November 22, 2013 at 5:17am

Abnormal values ​​in the Philippine Sea plate from the Ogasawara Islands



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