Breaking: Massive New Object Moving Toward Earth Now? – Jupiter Struck in September

[BeardyMan]

(11 December 2012, 12:05)I-K-E Wrote:

(10 December 2012, 17:12)BeardyMan Wrote:

(10 December 2012, 17:10)Bucket Wrote: would go phut with a 1km crater, and a 150db bang.

Let's hope it lands in central Luton then

would be interesting to know how much thermal energy would released in the impact, what would happen to the displaced soil, dust, rock, the size and effect and range of the shock wave and what size nuclear weapon it would be equivalent to

then what would be the impact on the geology and tectonic plates and climate for year after it

http://en.wikipedia.org/wiki/2012_DA14

Risks

The asteroid will not impact the Earth on February 15, 2013.[4]
As of May 12, 2012, the odds of impact on 2020-Feb-16 are essentially zero.[1]
There is an estimated cumulative 0.033% risk (1 in 3,030) of 2012 DA14 impacting Earth sometime between 2026 and 2069.[1]
It is rated a low −3.19 on the Palermo Scale.[5] (The risk is less than one thousandth of the estimated risk of another similarly sized near earth asteroid hitting the Earth during that time period.[6] It is estimated that there are more than a million near-Earth asteroids smaller than 100 meters.)[7]
It rates 0 (No Hazard) on the Torino scale.[1]
If it were to hit the Earth, it is estimated that it would produce the equivalent of 2.4 megatons of TNT.[1] The Tunguska event has been estimated at 3−20 megatons.[8]
On February 15, 2013, DA14 will pass no closer than 0.000181 AU (27,100 km; 16,800 mi) from the center-point of the Earth,[9] which is no closer to the Earth's surface than 3.2 Earth radii.[4] The nominal pass will be 0.00023 AU (34,000 km; 21,000 mi) from the center-point of the Earth.[9] This is potentially closer than satellites in geosynchronous orbit. The asteroid will not be visible to the naked eye.[4] Due to the uncertainty in the observation arc of 79 days, there is a small possibility that the asteroid will pass 0.00035 AU (52,000 km; 33,000 mi) from the Earth on February 15, 2013.[9]

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So I would assume it would be slightly louder than 150db