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Just had an earthquake

#51
Re: Just had an earthquake

I'm sitting here with an uncontrollable wide grin seeing those pics and reminiscing on how much fun it all was. Those are some great shots. I think mine are all buried in the bottom of a moving box somewhere.

And without being able to physically see it, I can see the thumbs up
smile.gif


Makes me wonder if the atmosphere and attitudes are the same now as they were then, and how I can dig up the funds to do it again hahaha.

What's a little earthquake now and then when you can be out doing that.
 
#52
Re: Just had an earthquake

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Cavscout1983</div><div class="ubbcode-body">Any idea what the actual felt level was here in So Cal?

I didn't have anything falling over. I realize the epicenter was 7.2 or whatever but is there a diminishing scale based on radius?
</div></div>

We use a scale called the Modified Mercalli Intensity scale for that. It is based on how bad the shaking is in a certain area. The same earthquake can produce severe shaking in one area, and nearly none in another close by. It mostly has to do with the ground beneath your feet.

Hard rock doesn't shake much, whereas soft soils do. Richter, and now Moment magnitudes, are based on the amount of energy released in the quake, and nothing to do with shaking, as like I said, that all depends on distance from the focus and ground type.

Richter and Moment scales are slightly off from each other, because the old Richter scale used the shear-wave magnitudes at a certain period, while the Moment magnitude is calculated via the area of rupture x distance slid x the rigidity of the crustal rocks.

Yeah, I'm an earthquake nerd who works for the USGS at the National Earthquake Center in Golden.
 
#53
Re: Just had an earthquake

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: COfox</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Cavscout1983</div><div class="ubbcode-body">Any idea what the actual felt level was here in So Cal?

I didn't have anything falling over. I realize the epicenter was 7.2 or whatever but is there a diminishing scale based on radius?
</div></div>

We use a scale called the Modified Mercalli Intensity scale for that. It is based on how bad the shaking is in a certain area. The same earthquake can produce severe shaking in one area, and nearly none in another close by. It mostly has to do with the ground beneath your feet.

Hard rock doesn't shake much, whereas soft soils do. Richter, and now Moment magnitudes, are based on the amount of energy released in the quake, and nothing to do with shaking, as like I said, that all depends on distance from the focus and ground type.

Richter and Moment scales are slightly off from each other, because the old Richter scale used the shear-wave magnitudes at a certain period, while the Moment magnitude is calculated via the area of rupture x distance slid x the rigidity of the crustal rocks.

Yeah, I'm an earthquake nerd who works for the USGS at the National Earthquake Center in Golden. </div></div>

Interesting. Thank you for the info.
 
#56
Re: Just had an earthquake

I have been living in CA for ten years, now. I have felt two earth quakes since Have lived here. That is not to say there hasn't been more. As a matter a fact in CA we have earthquakes every day. Most of the time you don't even know they are happening.

Jamie
 
#58
Re: Just had an earthquake

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: The Mechanic</div><div class="ubbcode-body">7.8 just now in Sumatra
Must have guessed the wrong direction</div></div>

It's waiting for a saturday in the summer so that it can maximize its casualty rate against californians when it activates a Tsunami.
 
#60
Re: Just had an earthquake

82 degrees, sunny and breezy in Tampa today with all of the usual flowers in bloom.

Earth still un-fractured here.

A theory; California has a lot of Marines living there, Florida far fewer, and since I now understand they can cause Islands to capsize, perhaps they are the source of the seismic waves in California.

I believe disputing this theory now constitutes racism.
 
#63
Re: Just had an earthquake

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: queequeg</div><div class="ubbcode-body">82 degrees, sunny and breezy in Tampa today with all of the usual flowers in bloom.

Earth still un-fractured here.

A theory; California has a lot of Marines living there, Florida far fewer, and since I now understand they can cause Islands to capsize, perhaps they are the source of the seismic waves in California.

I believe disputing this theory now constitutes racism.

</div></div>

Bwahahaha, that is the funniest thing I've read all day. beautiful.
 
#68
Re: Just had an earthquake

I miss the occasional quake. I got to be right by the epicenter of the Whittier quake back in the day and was enjoying some delicious potato leak soup when it had a 5.5 aftershock. With all the single level construction they aren't as scary as people might think. I'd much rather be in SoCal home during a quake than be sitting in the way of a tornado anywhere save a bunker.
 
#69
Re: Just had an earthquake

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: BugSniper</div><div class="ubbcode-body">I miss the occasional quake. I got to be right by the epicenter of the Whittier quake back in the day and was enjoying some delicious potato leak soup when it had a 5.5 aftershock. With all the single level construction they aren't as scary as people might think. I'd much rather be in SoCal home during a quake than be sitting in the way of a tornado anywhere save a bunker.</div></div>

How true that is BugSniper!
 
#81
Re: Just had an earthquake

Felt it here, too, papers are saying that the temblor went all the way up to NYC. Supposedly there was an earlier one as well but I've seen nothing on it.
 
#83
Re: Just had an earthquake

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: EddieNFL</div><div class="ubbcode-body">Eventually, Kalifornia will be an overseas tour...if the world last that long.

Standing by for December 2012. </div></div>

I thought the same thing, however, I just watched a Discovery Channel projection of tectonic plate movement and they showed that Baja California and parts of Mexico will eventually slide UP the California coastline. We already let illegal Mexicans in by the truck loads.....might as well get the land too
laugh.gif
 
#84
Re: Just had an earthquake

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Veer_G</div><div class="ubbcode-body">Felt it here, too, papers are saying that the temblor went all the way up to NYC. Supposedly there was an earlier one as well but I've seen nothing on it. </div></div>

Indeed it did, my house shook for a good 10 seconds or so.
 
#89
Re: Just had an earthquake

Im about 36 km from Mineral. Fairly mild as quakes go. At first I thought a frieght train was coming by, but no tracks in the area. I was near the one at Joshua Tree about 15 years ago....nothing like that..got thrown out of bed.
 
#93
Re: Just had an earthquake

SoCal is not to bad. I think San Fran is going to be getting a 7.0 to an 8.0 in the next 5 years. Maybe less. They have the big faults running through them. San Diego does not have the HUGE faults. Big yes, but not like San Fransisco.
 
#95
Re: Just had an earthquake

I'm down near the VA border.
I was at my house doing some work when the whole damned thing started hopping and the walls were shaking.

They are paving at a construction site 100 yards from me and I thought it was the roller making the ground shake, but then it didn't stop.

Got my attention, but no damages.
 
#96
Re: Just had an earthquake

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: The Mechanic</div><div class="ubbcode-body">SoCal is not to bad. I think San Fran is going to be getting a 7.0 to an 8.0 in the next 5 years. Maybe less. They have the big faults running through them. San Diego does not have the HUGE faults. Big yes, but not like San Fransisco. </div></div>

True. The San Andreas fault is pretty friggin' huge. The damn thing pretty much covers all of California including San Diego.
 
#97
Re: Just had an earthquake

I was in my car driving home, my wife called to ask if I felt it. She said the house was shaking lightly, I did not notice anything. A few minutes later she said her cousin in Toronto, Canada and another in Manitoba had posted on facebook that they felt it.
 
#98
Re: Just had an earthquake

Things have just started to get interesting around here...
- Earthquake (hit today)
- Hurricane Irene (on track to hit this Saturday/Sunday)

What else could possibly happen? Next thing you know we will be bracing for a Tsunami (kicked up by either the Earthquake or the Hurricane), or some other weird natural disaster that comes out of nowhere! It always amazes me how so many people think we live in times where we have such mastery and control over our natural environment (not!). We can make reasonable preparations for natural disasters, but nature is one element in our lives where we have little control, and barely understand. Several articles over the past year have discussed how most of Norfolk, VA will likely be underwater in less than 100 years due to ocean levels rising, unless a levee system is built (sounding a lot like New Orleans).
 
#99
Re: Just had an earthquake

I felt it in Springfield at work and my wife felt it in Frederick, MD at work. No damage to either place, apartment is good to go.

Never expected one like that on the east coast.
 
#100
Re: Just had an earthquake

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Shredder58</div><div class="ubbcode-body">Things have just started to get interesting around here...
- Earthquake (hit today)
- Hurricane Irene (on track to hit this Saturday/Sunday)

What else could possibly happen? Next thing you know we will be bracing for a Tsunami (kicked up by either the Earthquake or the Hurricane), or some other weird natural disaster that comes out of nowhere! It always amazes me how so many people think we live in times where we have such mastery and control over our natural environment (not!). We can make reasonable preparations for natural disasters, but nature is one element in our lives where we have little control, and barely understand. Several articles over the past year have discussed how most of Norfolk, VA will likely be underwater in less than 100 years due to ocean levels rising, unless a levee system is built (sounding a lot like New Orleans).</div></div>
<object width="425" height="350"> <param name="movie" value="http://www.youtube.com/v/EjmtSkl53h4"></param> <param name="wmode" value="transparent"></param> <embed src="http://www.youtube.com/v/EjmtSkl53h4" type="application/x-shockwave-flash" wmode="transparent" width="425" height="350"> </embed></object>
 
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