Archive for Japan

Volanic Unrest Worldwide: Strong Eruption at Sakurajima volcano, pyroclastic flow, ashfall reported in Kagoshima, Japan

Posted in 2018, Earthquakes, Volcanoes with tags , , , , on June 17, 2018 by theboldcorsicanflame

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There were eight events and five explosions at Minamidake crater from June 4 to 11. Crater incandescence was occasionally visible at night. Ash plumes rose up to 2 km (1.2 miles) above the crater rim, except during an event at 11:35 JST on June 10 which produced a plume that rose 3.5 km (2.1 miles). Tephra was ejected as far as 1.3 km (0.8 miles) from the crater between June 8 and 11.

The Japan Meteorological Agency maintains the alert level at 3 of 5 since February 5, 2016.

Featured image: Eruption of Sakurajima volcano at 22:20 UTC on June 15, 2018. Credit: Tomoaki Iwakiri

April 19th, 2018: Mount Io (Iwo-yama volcano) erupts for the first time since 1768, Japan

Posted in 2018 with tags , on April 19, 2018 by theboldcorsicanflame

  1. Iwo-yama volcano

Iwo-yama volcano also known as Mount Io and Mount Ioyama, located on the Ebino Highland and a part of Kirishimayama volcano group in Japan’s Kyushu, erupted at 06:39 UTC (15:39 JST) on April 19, 2018 for the first time since 1768.

The volcano ejected ash high into the air, forcing the Japan Meteorological Agency (JMA) to raise the alert level from 2 to 3 (of 5), restricting access to the volcano.

Today marks the first time JMA has raised the alert level to 3 for this volcano.
The agency said that it confirmed the scattering of volcanic rocks around the crater and added that it is possible that the volcanic activity will further increase.

Residents and tourists are cautioned against falling rocks within 3 km (1.8 km) and pyroclastic flows within 2 km (1.2 miles) from the crater. In addition, the agency called for people to be on guard over the possibility of mudslides after any rainfall, depending on how much ash fell from the volcano.
The last time this volcano erupted was in 1768, exactly 250 years ago, according to the JMA’s Fukuoka Regional Headquarters.

JMA raised the alert level to 1 on February 28, 2016, following an increase in shallow volcanic earthquakes. The alert was raised to 2 on February 20, 2018.

This is just the latest in a series of volcanic eruptions in the Kirishima mountain range. Mount Shinmoedake erupted in October 2017 for the first time in six years and has been active since with occasional eruptions.

TO BE CONTINUED ON

https://watchers.news/2018/04/19/mount-io-iwo-yama-volcano-erupts-for-the-first-time-since-1768-japan/

April 1ST Comet Flyby: No kidding. Green comet 41P/Tuttle-Giacobini-Kresak is flying over Earth’s North Pole

Posted in 2017, astronomy, Uncategorized with tags , , , , , , on March 31, 2017 by theboldcorsicanflame

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Amateur astronomer Yasushi Aoshima sends this picture of the approaching comet from Fukushima, Japan

Green comet 41P/Tuttle-Giacobini-Kresak is flying over Earth’s North Pole this week where sky watchers can find it all night long not far from the bowl of the Big Dipper. At closest approach on April 1st it will be just 21 million km from Earth–an easy target for backyard telescopes and almost visible to the naked eye.

Amateur astronomer Yasushi Aoshima sends this picture of the approaching comet from Fukushima, Japan

“On March 22nd I caught 41P ‘eating’ M108, the Surfboard Galaxy,” says Aoshima. “The comet’s green atmosphere appeared to swallow the distant spiral galaxy as it exited Ursa Major.”

Why green? Like many comets, 41P has a verdant hue because its atmosphere contains diatomic carbon (C2)–a substance that glows green in the near vacuum of space.

Comet 41P is not only approaching Earth, but also the sun. April 12th is the date of perihelion (minimum distance from the sun). This means we are catching the comet just as solar heating is furiously searing its icy core. The green atmosphere should be well puffed up by streamers of vaporizing gas. Optimistic estimates of the comet’s brightness place it at magnitude +6, near the lower limit of naked-eye visibility.

This is not a Great Comet, but it should be a good one. The best time to observe is during the dark hours before sunrise when the green fuzzball is high in the northern sky. If you have a GOTO telescope, you can point it using an ephemeris from the Minor Planet Center. These sky maps show approximately where to look: March 31, April 1, 2.

Radiation levels inside a stricken reactor at Japan’s Fukushima nuclear plant have hit a record high capable of shutting down robots within 2 hours!!

Posted in 2017 with tags , , , , , , , , , , , , , , , on February 3, 2017 by theboldcorsicanflame

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Radiation levels inside a stricken reactor at Japan’s Fukushima nuclear plant have hit a record high capable of shutting down robots, in the latest challenge to efforts aimed at dismantling the disaster-hit facility.

Radiation levels inside the plant’s No. 2 reactor were estimated at 530 sieverts per hour at one spot, Tokyo Electric Power Co (TEPCO) said Thursday after analyzing images taken by a manually operated camera that probed the deepest point yet within the reactor.

Even after taking a 30-percent margin of error into account, the radiation level was still far higher than the previous record of 73 sieverts per hour detected by sensors in 2012 though at a point not as deep, TEPCO said. Radiation exposure at 530 sieverts per hour would effectively shut down TEPCO’s planned robot camera probe in under two hours.

But TEPCO said the high reading focused on a single point, with levels estimated to be much lower at other spots filmed by the camera. It added that the planned robot probe would not sustain severe damage because it was unlikely to linger for too long at a single point.

The three cameras mounted on a caterpillar-type robot are designed to withstand up to 1,000 sieverts in total. TEPCO said the radiation is not leaking outside the reactor. A massive undersea earthquake on March 11, 2011 sent a huge tsunami barrelling into Japan’s northeast coast, leaving more than 18,000 people dead or missing, and sending three reactors into meltdown at the Fukushima plant in the worst such accident since Chernobyl in 1986.

Japan’s government said in December that it expects the total costs – including compensation, decommissioning and decontamination – to reach 21.5 trillion yen ($190 billion) in a process likely to take decades as high radiation levels have slowed operations.

TEPCO has said it plans to eventually use robots to locate the fuel debris as part of the decommissioning process.

Images of the wreckage inside the No. 2 reactor captured by the camera show that the metal grating under the pressure vessel which contained nuclear fuel has largely sunken in, causing a hole about one metre wide.

Black debris that could be melted fuel is also seen in the images. Fuel may have melted through the vessel and damaged the grating but the exact cause was not determined, TEPCO spokesman Tatsuhiro Yamagishi said Friday. “It may have been caused by nuclear fuel that would have melted and made a hole in the vessel, but it is only a hypothesis at this stage,” he told AFP.

“We believe the captured images offer very useful information, but we still need to investigate given that it is very difficult to assume the actual condition inside,” he said.

Source:

http://hisz.rsoe.hu/

Japan: November 21st 2016:Tsunami warning for Fukushima after strong Earthquake hits Japan

Posted in 2016, Uncategorized with tags , , , , , , , on November 21, 2016 by theboldcorsicanflame

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A tsunami warning for waves up to three metres has been issued after a 7.3 magnitude earthquake hit northeastern Japan.

People are being warned to evacuate low-lying areas and Tokyo Electric Power Co is checking its nuclear plants in Fukushima prefecture for any damage.

The epicentre is not far from Fukushima’s Daiichi plant, which in 2011 had a nuclear meltdown following Japan’s strongest-ever earthquake – a 9.0…..

Location NPP Distance
Japan Fukushima Daini Npp 20.97 km
Japan Fukushima Daiichi Npp 20.80 km

Squid That Glow Like Fireflies

Posted in 2016, animals with tags , , on July 2, 2016 by theboldcorsicanflame

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Hop on a fishing boat in Toyama Bay, Japan, in the wee hours of the morning and you may feel as if you’re in a spaceship, navigating through the stars.

That’s because each year, between March and June, millions of firefly squid transform the water into a galactic landscape.

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Lucky for you, all you need is a reservation to come aboard, your eyes and perhaps a really good camera.

http://mobile.nytimes.com/2016/04/27/science/firefly-squid-toyama-japan.html

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Please Demand the Australian Government act against illegal whaling by the Japanese Government in the Antarctic.

Posted in 2016, animals with tags , , , , , on January 28, 2016 by theboldcorsicanflame

 

https://seashepherd.good.do/endwhaling

Just before the 2013 Federal election Liberal MP and Australian Environment Minister, Greg Hunt made this promise “The Government should stop turning a blind eye to whaling in our waters and should have a Customs vessel in the Southern Ocean. If elected, we will despatch a vessel, to provide a clear signal that the Australian people don’t support whaling and to provide an independent monitoring and safety role. The Government simply has to stand up for Australian waters and do the right thing by the environment, no excuses.”

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Sea Shepherd will be in the Southern Ocean this year patrolling for illegal activity and we should not be left alone to defend the great whales of Antarctica.

The Australian Government must send a vessel to oppose the slaughter. Please Email Minister Hunt !

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