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Asteroid Tsunamis Could be Huge, Slow
Discovery News ^ | June 7 2002 | By Larry O'Hanlon, Discovery News

Posted on 06/09/2002 7:18:17 PM PDT by vannrox

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This is very interesting. I think that this will make a big "splash" in the Scientific Circles.
1 posted on 06/09/2002 7:18:19 PM PDT by vannrox
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To: vannrox
More time to rent a surfboard, I reckon.

I don't know what to do with this kind of information. Probably nothing.

Bazillions of people live in Southern California although the next 8.0 earthquake is a little overdue.

2 posted on 06/09/2002 7:29:15 PM PDT by Dog Gone
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To: vannrox
...smash into the oceans at 45,0000 miles per hour.

Now I'm a little dubious of their calculations. An extra zero here and a zero there could throw off their predictive model by a considerable degree.

3 posted on 06/10/2002 2:31:37 AM PDT by Rudder
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To: vannrox
"The previous models were wrong,"

Tell me about global warming again...

4 posted on 06/10/2002 6:52:20 AM PDT by T. P. Pole
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To: vannrox


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5 posted on 06/10/2002 2:21:25 PM PDT by WIMom
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To: Dog Gone
"Bazillions of people live in Southern California although the next 8.0 earthquake is a little overdue."

I'd rather live here (S. calif) than Seattle. They are overdue for a big one. Every 300 years or so. And Mount Rainier could blow simultaneously. The last big quake they had was ~350 years ago (dated from geological records).

I've seen magnitude estimates of 8.5-9.5. This would seriously damage Bill Gates' property values.

--Boris

6 posted on 06/10/2002 7:14:46 PM PDT by boris
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To: boris
I think I recall that So Cal gets an 8.0 every 140 years or so, and the last one was 1848, or something like that, meaning you're way overdue for some urban renewal.

Seriously, though, the Pacific Plate keeps turning and we can expect techtonic and volcanic activity at any time anywhere along the Pacific Coast.

Heck, just for fun, I'll post the current earthquake map for California.


7 posted on 06/10/2002 7:25:28 PM PDT by Dog Gone
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To: vannrox
At work folks were talking about seeing on the discovery channel that earth had a near miss (150,000) asteroid hit last week. Nothing on NASA bout this.
8 posted on 06/10/2002 7:36:22 PM PDT by TaRaRaBoomDeAyGoreLostToday!
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To: Cool Guy;RippleFire;seamole;backhoe;Alamo-Girl;EOD GUY;JMJ333

9 posted on 06/10/2002 7:51:35 PM PDT by TaRaRaBoomDeAyGoreLostToday!
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To: ClassyGreenEyedBlonde

10 posted on 06/10/2002 8:28:32 PM PDT by TaRaRaBoomDeAyGoreLostToday!
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To: boris;Dog Gone
I'd rather live here (S. calif) than Seattle. They are overdue for a big one. Every 300 years or so. And Mount Rainier could blow simultaneously. The last big quake they had was ~350 years ago (dated from geological records)

It was dated from records of aa giant tsunami in Japan as 1699 and caused great sinking and upheavels all along the NorthWesr coast. Indian legends abound about it. Core samples taken here in Humboldt Bay (Eureka) and Crescent City show sediment almost 2 feet thick. As a comparison the Crescent City Tsunami in 1961 that killed several people and did millions in damage left sediment 3 inches thick. This event was caused by the great Anchorage quake .

11 posted on 06/10/2002 9:02:33 PM PDT by tubebender
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To: Dog Gone
Bazillions of people live in Southern California although the next 8.0 earthquake is a little overdue.

Oh, the bad ol earthquake is going to get us all. LOL! Nice try Dog.

A bad day in California, is better than a good day in Texas. Bet your looking forward to that Texas summer, of 100 plus degrees, with humidity to match. Hehehe he...

12 posted on 06/10/2002 9:36:25 PM PDT by Joe Hadenuf
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To: Joe Hadenuf
No, I hate the heat and humidity for sure. I used to live in So Cal, so I understand the comparison for weather.

But I don't think the thread was about comparing weather.

13 posted on 06/10/2002 9:43:20 PM PDT by Dog Gone
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To: Dog Gone
Bazillions of people live in Southern California although the next 8.0 earthquake is a little overdue.

But I don't think the thread was about comparing weather.

Oh, It thought it was about earthquakes. (Sarcasm)

14 posted on 06/10/2002 9:46:39 PM PDT by Joe Hadenuf
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To: Rudder
...smash into the oceans at 45,0000 miles per hour.
Now I'm a little dubious of their calculations. An extra zero here and a zero there could throw off their predictive model by a considerable degree.

Why are you dubious?

A quick check on the interent brings up a site which declares that:

There are many different speeds of asteroids. The average speed of an asteroid is 25km/second.

25km/second equals 56,000 mph, or nearly the same speed as they used for the model.

15 posted on 07/02/2002 2:22:55 AM PDT by Looking for Diogenes
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To: Looking for Diogenes
45,0000 does not come close to 56,000. Please read their numbers again.
16 posted on 07/02/2002 12:33:21 PM PDT by Rudder
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To: Rudder
45,000 is close to 56,000, as compared to 4,600 or 460,000, or even 4,600,000, which are each an order of magnitude or more different. In your original post you suggested they might be off by one or two zeroes.

If you have a better number for the speed of asteroids, please share your expertise with us.

17 posted on 07/02/2002 2:36:48 PM PDT by Looking for Diogenes
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To: Looking for Diogenes
You are not reading critically. I did not post 45,000 nor did the article. The amount given in the article was 45,0000. They are off by one zero, and 45,0000 is a nonsensical number, especially for a scientific report.
18 posted on 07/03/2002 12:42:33 AM PDT by Rudder
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To: Rudder
Touche. I didn't catch the error.

Oddly, the error seems to either have been the poster's fault, or the editors caught it and changed it in the linked article.

An abstract of the actual paper states that the velocity used for the models was 20 km/s.

Simulations of asteroid impacts on water

My post to you was a reaction to the sometimes kneejerk skepticism of science that I have encountered here. Obviously I picked the wrong target. You were quite right to draw attention to the error in the article as posted.

19 posted on 07/03/2002 1:08:43 AM PDT by Looking for Diogenes
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To: Looking for Diogenes
Thanks for your comments.

This reminds me of the time I first used a university's mainframe computer to analyze data from a unusually complicated experiment. This was back in the days when punch cards were still vogue. After reading through reams and reams of computer print-out the data summary conluded with "meen" and standard deviation. Needles to say, I chucked the whole thing.

20 posted on 07/03/2002 2:42:07 AM PDT by Rudder
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