Earth Changes
More than a year after the Fukushima nuclear power disaster began, the news media is just beginning to grasp that the dangers to Japan and the rest of the world are far from over. After repeated warnings by former senior Japanese officials, nuclear experts, and now a U.S. Senator, it's sinking in that the irradiated nuclear fuel stored in spent fuel pools amidst the reactor ruins pose far greater dangers than the molten cores. This is why:
- Nearly all of the 10,893 spent fuel assemblies sit in pools vulnerable to future earthquakes, with roughly 85 times more long-lived radioactivity than released at Chernobyl
- Several pools are 100 feet above the ground and are completely open to the atmosphere because the reactor buildings were demolished by explosions. The pools could possibly topple or collapse from structural damage coupled with another powerful earthquake.
- The loss of water exposing the spent fuel will result in overheating and can cause melting and ignite its zirconium metal cladding resulting in a fire that could deposit large amounts of radioactive materials over hundreds, if not thousands of miles.
Officials of the National Astronomical Observatory of Japan and the Riken research foundation said on April 19 that the activity of sunspots appeared to resemble a 70-year period in the 17th century in which London's Thames froze over and cherry blossoms bloomed later than usual in Kyoto.
In that era, known as the Maunder Minimum, temperatures are estimated to have been about 2.5 degrees lower than in the second half of the 20th century.
The Japanese study found that the trend of current sunspot activity is similar to records from that period.
Source: North County Times
Date: Apr 20, 2012
[...] Meanwhile, a fire in Unit 2′s electrical panel on the non-radiological side broke out Friday, but it was extinguished in less than an hour. No injuries were reported.
The cause of the fire is under investigation.
The fire started at 12:34 p.m. Friday in an electrical panel in an area where non-radioactive steam pushes the turbine that generates electricity and burned until the plant's fire crew put it out at 1:14 p.m., said David Song, a utility spokesman.
Edison spokeswoman Jennifer Manfre said the fire was "controlled easily."
The utility reported an "unusual event" to the Nuclear Regulatory Commission at 12:49 p.m. and ended the event at 1:41 p.m.
But at the moment our ability to predict these events and guard against their worst consequences - which can include interruptions of power grids and satellite navigation systems - is lacking, says Mike Hapgood of the British research and technology agency RAL Space.
"We need a much better understanding of the likelihood of space weather disruptions and their impacts, and we need to develop that knowledge quickly," Hapgood, head of RAL Space's space environment group, writes in a commentary in the April 19 issue of the journal Nature.

Indonesians flee to higher ground in Banda Aceh after a tsunami warning earlier this month.
Authorities said the quake did not have the potential to trigger a tsunami. The US Geological Survey said it had a preliminary magnitude of 6.6 and hit 50 miles (83km) off Papua province. It was centered just 18 miles beneath the ocean floor. There was some damage, but no immediate reports of injuries.
Children in the town of Manokwan, closest to the epicenter, were seen running from their schools screaming. Streets filled with those escaping shaking buildings.
Suharjono, an official with the country's meteorology and geophysics agency, said no tsunami warning had been issued and there were no reports of serious damage or injuries.
Indonesia, straddling a series of faultlines and volcanoes, is prone to seismic upheaval due to its location on the Pacific "ring of fire".
Earlier this month an 8.6-magnitude earthquake and 8.2-magnitude aftershock struck off the coast of northern Indonesia, but did not trigger a tsunami despite warnings. The Indian Ocean tsunami of 26 December 2004 killed 230,000 people, half of them in Indonesia's westernmost province of Aceh.
A white cloud of ash, gas, water vapour and superheated rock spewed from the cone of Popocatepetl high above the village of Xalitzintla, whose residents said they were awakened by a window-rattling series of eruptions.
Mexico's National Disaster Prevention Centre said that a string of eruptions had ended in the early morning, then started up again at 5.05am, with at least 12 in two hours.
"Up on the mountain, it feels incredible," said Aaron Sanchez Ocelotl, 45, who was in his turf grass fields when the eruptions happened. "It sounds like the roaring of the sea."
The white cone of Popo, as most call the mountain, is an iconic backdrop to Mexico City's skyline on clear days, but its 40-mile distance means even a moderately large eruption is unlikely to do more than dump ash on one of the world's largest metropolitan areas.
It is a different matter for the villages on the flanks of the volcano, where the quiet of the corn fields and fruit orchards was pervaded by the volcano's spooky roaring.
"Everyone needs to take this seriously. This buzzing, this roaring isn't normal," said Gregorio Fuentes Casquera, the assistant mayor of Xalitzintla, a village of 2,600 people about seven miles from the summit. He said the town had prepared 50 buses and was sending out its six-member police forces to alert people to be ready to evacuate.
Saturday, April 21, 2012 at 01:16:54 UTC
Saturday, April 21, 2012 at 10:16:54 AM at epicenterTime of Earthquake in other Time Zones
Location:
1.609°S, 134.232°E
Depth:
29.8 km (18.5 miles)
Region:
NEAR THE NORTH COAST OF PAPUA, INDONESIA
Distances:
83 km (51 miles) SSE of Manokwari, Papua, Indonesia
341 km (211 miles) ESE of Sorong, Papua, Indonesia
990 km (615 miles) S of KOROR, Palau
1258 km (781 miles) NNE of DARWIN, Northern Territory, Australia
Friday, April 20, 2012 at 23:14:32 UTC
Saturday, April 21, 2012 at 05:14:32 AM at epicenterTime of Earthquake in other Time Zones
Location:
2.218°N, 93.395°E
Depth:
34.3 km (21.3 miles)
Region:
OFF THE WEST COAST OF NORTHERN SUMATRA
Distances:
427 km (265 miles) SSW of Banda Aceh, Sumatra, Indonesia
530 km (329 miles) SW of Lhokseumawe, Sumatra, Indonesia
929 km (577 miles) W of KUALA LUMPUR, Malaysia
1759 km (1092 miles) WNW of JAKARTA, Java, Indonesia











