What could do this kind of damage? The quake itself would have registered as 23 on the Richter scale—mind you, the largest earthquake ever recorded was about 9 on that scale, and it’s a logarithmic scale. Since today is the anniversary of the event, I thought it could use an update.]. All contents © 2020 The Slate Group LLC. Submit interesting and specific facts about something that you just found out here. The tantrum from SGR 1806-20 is one of the best studied events of its kind, and is certainly the most powerful ever detected in the modern era. Let's say it happened underwater. Skip that sleazy spam hole space-dot-com and get it from nasa plus more details. By joining Slate Plus you support our work and get exclusive content. Sign up today for the best stories straight to your inbox. If by some fluke such an incredible amount of energy where released from anywhere on or in the Earth, it would shatter the globe like an eggshell next to a stick of dynamite. I’ll note that a supernova, the explosion of an entire star, has a hard time producing any physical effect on the Earth if it’s farther away than, say, 100 light years. It gets worse. The pulses occurred every 7.56 seconds, and that’s understood to be the rotation period of the neutron star. “Fortunately, all the magnetars we know of are much farther away than this.". In just 200 milliseconds – a fifth of a second, literally the blink of an eye – the eruption gave off as much energy as the sun does in a quarter of a million years. I have brain matter leaking out my nose. By using our Services or clicking I agree, you agree to our use of cookies. Although the crust probably shifted by only a centimeter, the incredible density and gravity made that a violent event far beyond anything we mere humans have experienced. Speaking of the 2004 giant flare 11 years ago, he described the next biggest starquake ever recorded as “peanuts” in comparison. Millions of lives will be at risk if wacky premonitions of a monstrous wave of radiation smashing into Earth on Boxing Day come true. Cookies help us deliver our Services. Or just my brain, thinking about it. See the pulsations in the plot? After the initial burst, which lasted only a fraction of a second, pulses of energy were seen from the magnetar for minutes afterward. And you'll never see this message again. So far, no neutron stars have been detected any closer than 250 light-years away, so we are probably safe. Posted on 01/08/2020 | by . What keeps them from collapsing is not nuclear reactions like most stars but simple fermion degeneracy pressure, much like chemical bonds keep the earth from collapsing. TIL that in 2004, a starquake on SGR 1806-20 released more energy in one-tenth of a second than our sun has released in 150,000 years. Disappointing. Sometimes they’ll include recommendations for other related newsletters or services we offer. That’s 500 quadrillion kilometers (300 quadrillion miles) away, about halfway across the freaking Milky Way galaxy itself! GRBs may not even be possible in our galaxy (they were common when the Universe was young, but not so much any more), which means that, for my money, magnetars may be the most dangerous beasties in the galaxy (though still unlikely to really put the hurt on us; see below). On that day, eight years ago, the wrath of the magnetar SGR 1806-20 was visited upon the Earth. Although it originated 50,000 light-years away, this giant pulse of energy in the 2004 starquake was enough to knock all research and communication satellites offline. The blast of energy surged away from the magnetar, out into the galaxy. The sheer amount energy generated is difficult to comprehend. Starquake sets magnetar ringing like a bell. I'm going to go ahead and apologize for being pedantic. The crack in the crust got infernally hot, and we saw a pulse of light from it every time it spun into view. Starquakes occur when the crust on the surface of a magnetar cracks, causing an eruption of energy equivalent to a 23 magnitude earthquake on Earth. We’d have lost satellites at least, and it would have caused billions of dollars in damage in NASA hardware alone. The flood of gamma and X-rays that washed over the Earth was detected by several satellites designed to observe the high-energy skies. De ster bevindt zich op een afstand van 50.000 lichtjaar van de Aarde, in het sterrenbeeld Boogschutter.Op 27 december 2004 werd een van de ster afkomstige lichtflits waargenomen die in röntgen-en gammastraling feller was dan alles wat tot nu toe buiten het zonnestelsel is gezien. So here’s a recap, in case your brain still remains uncrushed: this was an explosion by an object with the mass of the Sun, squeezed into a ball a few kilometers across, with gravity billions of times stronger than Earth’s, a magnetic field quadrillions of times stronger, all of of which is spinning every 7.5 seconds. No? Dr Bryan Gaensler, of Dunlap Institute for Astronomy and Astrophysics, led a report into the most powerful space quake to reach Earth ever recorded. But that’s because SGR 1806-20 is so very far away; had it been one-tenth that distance, the effects would have been 100 times stronger. The quake, which occurred 50,000 light years from Earth, released gamma rays equivalent to 10 37 kW. Magnetars are neutron stars, the incredibly dense remnants of a supernovae explosions. This same pulsing was seen by other satellites as well. Magnetars are incredibly dense stars with masses up to twice that of the sun and extremely powerful magnetic fields. When Kate Middleton first met and fell in love with Prince William at university, did she have any idea she would one day own the tail of every dolphin in the British seas? What you just described is exoonential (10x) , logarithmic would be log(x), More info for those interested. Look at the math /u/Kooooooj did further up the comments it's pretty ridiculous. magnetar starquake 2004. Daily Star Online spoke to experts who have studied magnetars and the link between space weather and natural disasters. There are about a dozen or so known magnetars with the closest a relatively harmless 7,000 lightyears away, according to science blog Slate. You can unsubscribe at any time. Ben Davidson, founder of natural disaster monitor Observatory Project, was similarly dismissive view of the theory. Neutron stars actually do have "plates", as they are not balls of gas but rather have a crust of atomic nuclei covering a mantle of compressed neutrons. Even more amazingly, Swift wasn’t even pointed anywhere near the direction of the burst: In other words, this flood of energy passed right through the body of the spacecraft itself and was still so strong it totally overwhelmed the cameras. The Richter Scale is exponential. That magnetar was 50,000 lightyears away and yet it still fried satellites and had physical effects on Earth. INTEGRAL, used to look for gamma rays from monster black holes, saw this blast. SGR 1806-20 is een neutronenster van het type magnetar met het sterkste magnetische veld dat ooit is waargenomen. Speaking of the 2004 giant flare 11 years ago, he described the next biggest starquake ever recorded as “peanuts” in comparison. A fireball of matter erupted out of the star at nearly a third the speed of light, and the energy from the explosion moved—of course—at the speed of light itself. 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