Dr. Jeff Masters' WunderBlog |
|
| Posted by: Dr. Jeff Masters, 11:00 PM GMT on March 11, 2011 | +7 |


| Permalink | A A A |
|
|
Jeff co-founded the Weather Underground in 1995 while working on his Ph.D. He flew with the NOAA Hurricane Hunters from 1986-1990.
|
Tropical Blogs
Tropical Weather Stickers®
Page: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 — Blog Index
That first line sounds funny; I've always been under the impression that the main shock is the largest quake in any particular sequence, so that any smaller jolts that happen before are considered foreshocks, and those afterwards are aftershocks.
A map like that could cause panic that is not needed at a time such as this. If it is in fact false I agree that it should be moved straight away.
The changes may be imperceptible to most people, but the massive earthquake that struck off the coast of Japan Friday had a startling impact on the Earth, experts say. The 8.9-magnitude quake moved Japan's main island by more than two metres, in addition to shifting Earth on its axis and briefly speeding up its rotation.
Early data from Japan suggests the earthquake moved the island about 2.4 metres, according to Kenneth Hudnut of the U.S. Geological Survey. The agency compared information from a GPS station that had moved by more than two metres with satellite images from Japan.
Late Friday, scientists at NASA revealed the quake shaved more than a microsecond from the day. The quake, which lasted about two minutes, sped up the earth's rotation by about 1.6 microseconds. (One microsecond is one-millionth of a second.) NASA geophysicist Richard Gross said the quake shifted the Earth's mass, which caused the change in speed.
While the speed change was only slightly more than what was caused by last year's earthquake in Chile, it was considerably less than the quake in Sumatra in 2004. That quake sped up the Earth's rotation by 6.8 microseconds.
Meanwhile, a report from Italy's National Institute of Geophysics and Volcanology suggested Friday's quake shifted the Earth on its axis by an estimated 10 centimetres.
The quake was the fifth-largest recorded in the world since 1900. The quake was an estimated 299 kilometres long and 150 kilometres wide, and occurred where the North American and Pacific tectonic plates intersect, in the northwest region of the "Ring of Fire."
Thousands of people were missing after Friday's tremblor, which triggered a tsunami that swept away entire villages. By late Saturday, the death toll had risen to more than 600, with thousands of people still missing. Several million residents were also without power.
With files from The Associated Press
My ignorance will show with this question, but is it possible that a slight shift in the axis of the earth is actually what causes these large quakes? It seems possible, but unlikely.
My name is Elena.
Link
I travel a lot and one of my favorite destinations leads North from Kiev, towards so called Chernobyl "dead zone", which is 130kms from my home. Why my favorite? Because one can take long rides there on empty roads. .............
Can you say "cable news"?
bbb.co.uk is doing a good job.
Flood it, which what they are gong to do, if not doing already. Worst, case, it wouldn't be a full meltdown as they did manage to get some of the fuel out before everything went to hell.
What's most important is whether it remains contained. Even a full meltdown isn't a full scale disaster if the containment vessel can remain intact. What made Chernobyl really bad, was that they used graphite control rods. Once meltdown was in progress, the rods dried out and then ignited creating a massive explosion which destroyed the containment system, exposing the core to open air which further fueled the fire spewing massive amounts of vaporized radioactive material into the air.
Actually, radiation is just one concern with a meltdown. Most of that is concentrated in fairly small area. Even with Chernobyl relatively few died from the immediate radiation effects. Another concern from the products of fission reactions. Most elements produced in the reactions are very toxic, with even small amounts capable of seriously harming or killing (and that's not even including the effects from radiation). These heavy elements accumulate in the body and in the food chain and remain there for extended periods of time. Remaining in a contaminated area where you are breathing in or ingesting these elements on a daily basis will most likely kill you faster than the radiation itself will.
Nobody knows
It's not anyone's. It needs to stop being posted over and over and over until/unless it's verified by authorities.
Here's a new video just released. It's amazing how quickly a tranquil scene can turn horrifying. Looks to be about 30' of water coming in...:
Niiiice...I have come to expect you to be the bearer of good news
LOL
Nuclear is still by far the safest method for power production. Your also failing to note that the reactor design used in this case was an outdated an unsafe reactor design to use in a seismically active area.
To put it into perspective, the Three Mile Island reactor was safer than this reactor. They had no secondary containment system and they used an active cooling system. The only saving grace so far is that they aren't using flammable neutron absorption materials.
Even if a full meltdown occurs, it won't be anywhere near as bad as Chernobyl where the entire containment system blew apart and exposed the full core to open air.
Amen. He's not just smart, he's wise. You younger folk on here pay attention. It's a free lesson.
Always display humility and respect regardless of who you are talking to. That's what Dr. Masters does.
"In the beginner's mind, there are many possibilities; in the expert's, few." The good Doctor understands how to know so much and always remain a beginner, with eyes open. Kudos, Doc.
Best wishes to all in what looks to be a very trying period coming at us.
WTO
Wow. Thanks for that!
I think its legit
Please don't do that. That is how people get taken to malicious links, to the detriment of their computers.
I've seen a dozen sites debunking it as false. What do you have to corroborate its legitimacy beyond your personal belief? Seriously: it would be best if you don't post it yet again. If, however, you feel you must, you should note that it's of uncertain provenance and validity.
If you say so.........
LOL!
Really, everyone needs to settle down. This is not Chernobyl redux.
Unless you're sleeping on top of the reactors over there, you're not going to get 750 RADS.
Yes it is, but the you're not going to get that here in the US. Nor are you going to get that unless you're getting all cozy with the reactor cores.
Corium (former reactor core) is at many thousands of degrees when it sinks through the (former) containment building floor.
Depending on what it is sinking into, there may be a rapid and dangerous release of a lot of radioactive particles and gases. That is my current understanding, but this is not my area.
Edit: this is not what happened at Chernobyl. They had a partial meltdown caused by shutdown of the circulation system (the operators made a wee mistake). They got it back under control, but still had a moderate release of radioactive particles and gases. They did not have a full core meltdown - a "China Syndrome."
http://earthquake.usgs.gov/earthquakes/recenteqsw w/Quakes/quakes_big.php
IAEA Link
containmentreactor building I have seen.LOL
Damage seems consistent with hydrogen (lighter than air)collecting in the top of the reactor shed until ignition.
Might be time to repost your link regarding "Australian Radiation Services", nrt!
It is a fake. The Australian Radiation Services does NOT emit any maps like this.
I've been watching this. I can't begin to imagine how unnerving it must be to through almost two days of constantly feeling the earth shake underneath you. And not just a little either.
Still there next to quote on mine.
.
Once somthing gets started on the internets....
Instead of ignition, the Tokyo Electric Power Company refers to it as "the explosive sound".
I don't know, but if you got to US NRC site it is not there.
Viewing: 751 - 801
Page: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 — Blog Index