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Quake Changes Earth's Rotation, Moves Islands
kernel panic attack writes "This week's deadly Asian Quake and Tsunami may have been so powerful,
that it changed the rate of Earth's rotation. In a Reuters article,
a NASA geophysicist theorizes that the quake compacted the Earth enough
to speed up the planet's rotation by 3 microseconds. A second
article
says the quake moved undersea tectonic plates by up to 98 feet, shifting
islands near Sumatra out to sea an unknown distance. Also, a
USGS team wants images from commercial satellite operators to
help pinpoint coastline damage. Lastly, an interesting article from the Australian Spaceguard Survey about the need for a Tsunami warning system in the Indian Ocean. The author comments that tsunami warnings may not help much, as people often flock to the coastline to see the giant waves." The current estimated death toll is now nearly 70,000; Amazon and Google, among others, have added front-page links to simplify donating to the disaster relief effort.
Probably not as much traffic as Amazon or Google, but Apple also has also modified their front page to offer multiple relief links. Even the four boxes at the bottom have been changed to different organizations.
I would not think a quake, even of this magnitude could have that much effect on rotation. Then again, the speculation is that there could never be enough energy for a 10.0 quake, so 9.0 is pretty high up on the list. It is impossible to comprehend, but an 8.6 earthquake has enough energy to equal 60,000 hydrogen bombs. Amazing.
Only a fool would try to fly by pulling their hair upwards. Everyone knows you have to throw yourself at the ground and miss to fly.
Do not try to read the dupe, thats impossible. Instead, only try to realize the truth
What truth?
There is no dupe
It's still hard to wrap my mind around the extent of the disaster.
It also is amazing just how much information we have at our fingertips from cell phones, cameras, the internet, and more. Had this happened twenty years ago, the sense of it would be different.
It's amazing seeing the global impact, and being aware of the global impact. The world is much smaller these days.
I am also heartened to see how the internet has given people information on how to help out. That, too, is different than what we would have faced twenty years ago. Let's hope it makes a difference.
"The Sage treasures Unity and measures all things by it" - Lao Tzu
I myself donated $500 to AmeriCares which seems to be a fairly reputable charity, and I'm only a poor graduate student.
Those of you who are well off enough, please, donate as much as you can to your favorite charity.
I quote John Donne:
"No man is an island, entire of itself; every man is a piece of the continent, a part of the main. If a clod be washed away by the sea, Europe is the less, as well as if a promontory were, as well as if a manor of thy friend's or of thine own were. Any man's death diminishes me because I am involved in mankind; and therefore never send to know for whom the bell tolls; it tolls for thee."
No more than usual perturbations, I suppose: geostationary satellites already tend to drift a little and need stationkeeping.
None. The second is defined relative to quantum levels in the caesium atom, that won't change. As for keeping up with the calendar, the Earth's rotation already has small variations; since 3 microseconds is roughly 1/300 second, we might have to subtract a leap second next July or December. (E.g. straight from 2005-12-31/23:59:58 to 2006-01-01/0:00:00 UTC.)
Don't know, but don't think the resolution is that precise.
Well, I'm writing this from Chennai/Madras which was hit quite badly (over 3000+ folks were killed from areas here and around).
The problem is that this region has never seen Tsunamis before, and most people were just curious to see what the hell was happening. That made it only worse - a lot of them were morning walkers who were wondering what's up with the sea.
If erudite urban folks are this naive, what can you expect off villagers? Actually, there is a story making the rounds of a guy from Singapore who called up his village and warned them about this, and they all moved to safety and nobody in the village was affected.
The problem is that, it is not enough if you had a warning system -- you would need to know what to do with it. It's not sufficient to warn people, you need to tell them where to go and what to do, too.
On the GPS?
You press the degauss button. It'll look funny for a few seconds but then it'll click and be fine.
Fsck, here went my moderation.
I have been on that island (it is worth visiting while it lasts). Nearly killed myself aquaplaning in a tropical rainstorm on a road with 400+ meter cliff going into the sea on the right and 400+ cliff going up towards the volcano in question on the left.
Anyway, on subject:
It has a US Geological Survey run GPS station network every several hundred meters or so in some places do detect any movement and try to predict the next eruption. There will be a fair warning on this one. It is a question if anyone will dare to use that warning wisely which I doubt.
That is the good bit.
The bad bit is that compared to a worst case La Palma scenario the tsunami from 2004 Christmas earthquake will be a child's game in a puddle. The predicted worst case tsunami for La Palma is 800m at the start, 100+m at Marroco and Capo Verde, 30+m at Lisbon, Rio and the Caribean, 10+ m along the entire East Coast of the US including New York and Ireland and 5+ at the South coast of the UK. The death toll if there will be no evacuation will be in the tens of millions if not hundreds. That is the worst case scenario which is if it slides the same way it slid 1+ million years ago when the current north caldera has formed (it is the largest volcanic caldera formed by a landslide on the planet - 30km+ diameter). Even if it is a fraction of that it is still really scary.
Just to make things worse is that current models are that a landslide is likely to follow one of the next 3-5 eruptions and it erupts every 20 years on average.
And worst part is that it has not erupted for nearly 33 years now so the next eruption is likely to be bigger then usual.
Baker's Law: Misery no longer loves company. Nowadays it insists on it
http://www.sigsegv.cx/
The guys over at India's department of Space, National Remote Sensing Agency posted a link to an 8MB powerpoint slide of satellite images of the affected areas which effectively crippled their server due to the demand. Some of us readers over at Tsunamihelp.blogspot.com mananged to get some mirrors up here and here. I also created a .torrent which includes the images(in a PowerPoint presentation) as well as a bunch of footage of the tsunami that has been going around bringing down servers. Grab the .Torrent. Please grab the .torrent unless you're really lazy, the other mirrors will probably be tried first by those who really need the data. More seeders needed for that .torrent, leave your BT clients running please.
What if Digg added local news and a Slashdot inspired comment karma system? ---
http://houndwire.com
So it looks like Amazon.com is not only giving this front-page billing, they are also personally paying the credit card transaction fee, in effect losing at least a couple pennies for each dollar contributed.
In other words, they can't be faulted one iota.
I'm generally "Interesting," "Insightful," and even "Funny" here. What the hell happens to me at parties?
This is not an international dick-waving contest to see who can 'contribute' the most. How about we just help them, OK?
Amazon and Google, among others, have added front-page links to simplify donating to the disaster relief effort.
Perhaps Slashdot could do the same? After all, 80,000 dead and counting definately counds as "Stuff that matters."