Mysteries

Oct. 27th, 2004 09:42 am
nocturnus33: (Default)
[personal profile] nocturnus33
Yesterday while chatting with [livejournal.com profile] telophilos, the earth start trembling. It was three in the Mercali scale. The Mercali scale measures the results of an earthquake, such as the shaking and damage that people actually feel and see (at level 3 many people feel the movement, parked cars may rock). What did I felt?. Not much, a little movement, in fact I continue chatting.

Today the local news are full of calling to kept calm, that this has nothing to do with Japan earthquake.

Coming from the "hard" sciences [livejournal.com profile] autumnmist, you could laugh aloud . There are some common knowledge facts, for us Chilean people, that Scientifics always deny.

1. If there is a quake at Japan it will tremble in Chile. They say there is no correlation, but believe me: Always happens.
2. If there is a quake, even a little one, climate changes. My beloved friend Marcelo, who is a geographer gets nuts with this idea. Just explain me: Why did yesterday and the day before was cloudy and pouring and today - after the tremble - the day is sunny?
3. Little kids and farm animals felt the rain in their bodies, they always start being restless before it rains. But on Monday I was near to madness, my kids were in a mood. Couldn't control them. Then it rains, and everything went into the right path again.

Date: 2004-10-27 04:33 pm (UTC)
From: [identity profile] autumnmist.livejournal.com
Well actually all three of the things you listed are completely within the realm of possibility.

1) Because of the way shock waves from the earthquakes are transmitted through the earth, there can often be secondary earthquake set off other places (at other times too!)... I'm not saying this is actually the case, but it's entirely possible this is what you have been noticing.
At the instant an earthquake occurs, P, S and L waves immediately begin racing outward in all directions, losing energy as they spread out. If they encounter no interference, P and S waves for a large earthquake should quickly travel all of the way through the middle of the earth and faintly arrive on the opposite side of the globe. An earthquake at the south pole, for example, would shake the north pole in less than half an hour (though the vibrations would be very weak). This is what P and S waves should do. However, the P and S waves do not always make it to the opposite side.
http://cse.ssl.berkeley.edu/lessons/indiv/davis/hs/QuakesEng3.html

2) There is no statistical proof for this, and in this case, I'm inclined to believe the scientists simply because anecdotal (not rigorous, personal observation) evidence can be very deceiving. It may seem to be true, but over long periods of time, measuring and observing after every earthquake, there seems to be no pattern. That said, I tend to think that there's lots we don't know about the Earth, so again, not completely impossible.
http://www.science-frontiers.com/sf116/sf116p15.htm

3) It's known that animals (people included!) can sense pressure changes in the atmosphere. Before it rains, the atmosphere's pressure always changes. So does the ion (electricity) concentration in the air.
http://petplace.netscape.com/Articles/artShow.asp?artID=4919

Eclipse

Date: 2004-10-28 06:36 am (UTC)
From: [identity profile] lady-clover.livejournal.com
I am glad that you remembered the eclipse tonight. I thought that if anyone would, you would. It was beautiful. I am glad that I was able to share this powerful moment across the miles with you.

Carrie

May 2022

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