Joanne98
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Sun Jun-03-07 09:08 AM
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Why were there so many earthquakes in the last 24 hrs? |
Totally Committed
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Sun Jun-03-07 09:12 AM
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:sarcasm:
Sorry.... I couldn't resist. I don't know. It is interesting, though.
TC
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Joanne98
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Sun Jun-03-07 09:14 AM
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3. LOL! It's probably nothing. Over-reporting. the one in China was pretty big though. |
Joanne98
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Sun Jun-03-07 09:12 AM
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hobbit709
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Sun Jun-03-07 09:15 AM
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Size and frequency of occurrence
Small earthquakes occur nearly constantly around the world in places like California and Alaska in the U.S., as well as in Chile, Indonesia, Iran, the Azores in Portugal, New Zealand, Greece and Japan.<3> Large earthquakes occur less frequently, the relationship being exponential; for example, roughly ten times as many earthquakes larger than magnitude 4 occur in a particular time period than earthquakes larger than magnitude 5. In the (low seismicity) United Kingdom, for example, it has been calculated that the average recurrences are:
* an earthquake of 3.7 or larger every year * an earthquake of 4.7 or larger every 10 years * an earthquake of 5.6 or larger every 100 years.
The number of seismic stations has increased from about 350 in 1931 to many thousands today. As a result, many more earthquakes are reported than in the past because of the vast improvement in instrumentation (not because the number of earthquakes has increased). The USGS estimates that, since 1900, there have been an average of 18 major earthquakes (magnitude 7.0-7.9) and one great earthquake (magnitude 8.0 or greater) per year, and that this average has been relatively stable.<4> In fact, in recent years, the number of major earthquakes per year has actually decreased, although this is likely a statistical fluctuation. More detailed statistics on the size and frequency of earthquakes is available from the USGS.<5>
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Tierra_y_Libertad
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Sun Jun-03-07 09:19 AM
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5. To remind us that, as important as we think we are, we're not in charge. |
Christa
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Sun Jun-03-07 09:22 AM
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Tierra_y_Libertad
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Sun Jun-03-07 09:28 AM
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9. Nature does have a way of putting us in our place. |
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Humans think they're bigshots because we tell ourselves we are. Despite the evidence that we are a species among many species living on a minor planet circling an rather ordinary star on the outskirts of a rather unremarkable galaxy in a universe that may very well be one of trillions of other universes.
We're like fleas on an elephant who think they're steering.
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cassiepriam
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Sun Jun-03-07 09:24 AM
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7. Mother Earth is not a happy camper. |
Double T
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Sun Jun-03-07 09:25 AM
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8. Plate tectonics are continual although I believe human drilling, explosions. bombs, etc......... |
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Edited on Sun Jun-03-07 09:28 AM by Double T
may affect the constantly moving and colliding plates, triggering tremors and earthquakes.
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Donnachaidh
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Sun Jun-03-07 09:38 AM
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10. a 1.4 in New Hampshire? |
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How would they even FEEL it?
Most Californians yawn at 4.0 quakes. :shrug:
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malaise
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Sun Jun-03-07 09:39 AM
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11. Many of those aren't even here |
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http://www.iris.edu/seismon/I only heard about the 6.2 in Yunnan,China.
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Forkboy
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Sun Jun-03-07 09:39 AM
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12. Here's a cool page with real time disaster updates worldwide. |
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Edited on Sun Jun-03-07 09:40 AM by Forkboy
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StarryNite
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Sun Jun-03-07 07:03 PM
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25. Well that's a feel good site. |
InvisibleTouch
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Sun Jun-03-07 09:54 AM
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13. Mother Earth shaking off some fleas? n/t |
johnaries
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Sun Jun-03-07 06:47 PM
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24. Just scratching at them a little (read my sig line, btw!). |
InvisibleTouch
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Mon Jun-04-07 09:06 AM
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27. Appropriate sig, definitely! :) n/t |
Davis_X_Machina
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Sun Jun-03-07 10:47 AM
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... stochastic -- we are the ones who read the significance into them.
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camero
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Sun Jun-03-07 10:49 AM
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Someone should check. I heard once that underground nuclear activity could lead to an increase in earthquake activity.
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smirkymonkey
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Sun Jun-03-07 03:37 PM
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That's unusual. Although it wasn't very big, but I guess sometimes it doesn't have to be to scare the bejezus out of people.
It's just a matter of time before one of the larger quakes hits a populated area. I don't think it means anything in particular, it's just that certain areas are on active fault lines and are prone to more and larger quakes. Sooner or later the "big one" will hit in a populous area and there will be a massive human toll, unfortunately.
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Forkboy
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Sun Jun-03-07 04:57 PM
Response to Reply #16 |
20. Actually New England has quite a few,just too small to really make the news. |
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Nothing like the West Coast (thankfully) but they happen.
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kineneb
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Sun Jun-03-07 04:51 PM
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17. yawn. wake me if it is over 5.5 |
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under that, the Herds of Harleys out for their Sunday run produce more vibrations.
yes, I am in California...how did you guess?
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Forkboy
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Sun Jun-03-07 04:57 PM
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21. Anything stronger than that and you wont need anyone to wake you. |
kineneb
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Sun Jun-03-07 05:19 PM
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22. true, about 5.5 is where they get really noticeable |
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and the Loma Prieta (at +-7.8) quake was just a bit too exciting! Watching streetlight poles flail about like reeds, was, well...scary. And the road on which I was driving actually went up and down, like a wave.
But 3.0, yawn.
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Forkboy
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Sun Jun-03-07 05:31 PM
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23. I've only felt one,about a 3.2,when I was younger. |
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My first thought,living near a main road,was a big truck going by.Then I noticed the shaking wasn't up and down...but sideways.It was short but freaky.I don't know you guys live out there.Mudslides,flood,drought,fire,earthquakes.
We get the occasional blizzard. :shrug:
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kineneb
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Sun Jun-03-07 10:41 PM
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Easy to say why we live in the Golden State- winters that rarely get below 20 deg F and humidity that stays below 40%. No shoveling snow, no muggy summers. If I want snow, I go up to the mountains, it does not come to me. I will put up with the earthquakes, etc. in exchange.
Great-grandpa/ma left Kansas with the 8 youngest kids in 1908 and never looked back
Hubby & I are native-born Californians, so why would we leave, other than to move to Europe?
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annabanana
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Sun Jun-03-07 04:56 PM
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18. Just one O' those days, I guess. . (good sites here:) |
Garbo 2004
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Sun Jun-03-07 04:56 PM
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19. There are earthquakes all the time regardless if the media reports them or not. |
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The media reports you cite do not reflect anything remarkable regarding the number of earthquakes that occur on a daily basis. Check an earthquake reporting site periodically and that would be evident. USGS for example is one such site (note it only reports earthquakes beyond stated magnitudes so a 1.4 for example would not be listed): http://earthquake.usgs.gov/eqcenter/recenteqsww/Quakes/quakes_all.php
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Thu Apr 25th 2024, 07:57 PM
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