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Started By
Message
Now Closed: Everything you ever wanted to know about EARTHQUAKES
Posted on 8/19/14 at 2:09 pm
Posted on 8/19/14 at 2:09 pm
EARTHQUAKES
Earthquakes happen all the time. Millions per year. And they are powerful:
Real-time Earthquake tracker
If you like Google Earth, you can get a layer
There was one in Oklahoma (just outside Guthrie) today! 4.2 magnitude. Anyone there feel it?
Magnitude? Richter scale! Logarithmic! Next level is 10x stronger than the next. Quantitative measure of the earthquake.
Mercalli Scale is for earthquake intensity, or amount of destruction. A qualitative report of the earthquake.
Human structures are the number one cause of earthquake fatalities. Scondary effects are also deadly and destructive.
Fire from San Francisco 1906 Earthquake
and Tsunamis
But earthquakes are nice because they helped us figure out the interior of the Earth!
And that's all because seismic waves propagate through different materials in different ways!
So, for a limited time, ask me any question you have relating to Earthquakes and their secondary effects!
Why this matters to you:
The gray area is the failed arm of that triple junction (3 different tectonic plates)...and it's where the Mississippi River runs.
The Baton Rouge fault marks where a huge piece of rock is separate from the mroe stable craton of the US.
Earthquakes happen all the time. Millions per year. And they are powerful:
Real-time Earthquake tracker
If you like Google Earth, you can get a layer
There was one in Oklahoma (just outside Guthrie) today! 4.2 magnitude. Anyone there feel it?
Magnitude? Richter scale! Logarithmic! Next level is 10x stronger than the next. Quantitative measure of the earthquake.
Mercalli Scale is for earthquake intensity, or amount of destruction. A qualitative report of the earthquake.
Human structures are the number one cause of earthquake fatalities. Scondary effects are also deadly and destructive.
Fire from San Francisco 1906 Earthquake
and Tsunamis
But earthquakes are nice because they helped us figure out the interior of the Earth!
And that's all because seismic waves propagate through different materials in different ways!
So, for a limited time, ask me any question you have relating to Earthquakes and their secondary effects!
Why this matters to you:
The gray area is the failed arm of that triple junction (3 different tectonic plates)...and it's where the Mississippi River runs.
The Baton Rouge fault marks where a huge piece of rock is separate from the mroe stable craton of the US.
This post was edited on 8/19/14 at 3:29 pm
18
Posted on 8/19/14 at 2:10 pm to Pectus
Thanks
Posted on 8/19/14 at 2:10 pm to Pectus
why don't we have earthquakes in south la?
Posted on 8/19/14 at 2:11 pm to Pectus
When will California float away?
Posted on 8/19/14 at 2:11 pm to Pectus
YESSSS
Posted on 8/19/14 at 2:13 pm to Pectus
Nothing about underground godzillas and you call yourself knowledgeable about earthquakes?
Posted on 8/19/14 at 2:15 pm to Pectus
I feel them almost daily (induced seismicity from a geothermal field). It always comes with a big boom like someone hit the side of the building but there's no extended time period of shaking. Which wave am I feeling?
Posted on 8/19/14 at 2:15 pm to Pectus
What are the chances that the New Madrid fault causes a major quake in St. Louis or Memphis in the next 100 years?
Does Liquifaction (such as what occured in Japan) occur on all types of soils? What factors have to be present for this to occur? Is it a concern for any major US city in an earthquake zone?
Are there any fault lines in the Gulf of Mexico that could potentially cause problems for the coast of Louisiana?
Does Liquifaction (such as what occured in Japan) occur on all types of soils? What factors have to be present for this to occur? Is it a concern for any major US city in an earthquake zone?
Are there any fault lines in the Gulf of Mexico that could potentially cause problems for the coast of Louisiana?
This post was edited on 8/19/14 at 2:19 pm
Posted on 8/19/14 at 2:17 pm to Pectus
I like the pictures...although the first one reminded me of a boob. 
Posted on 8/19/14 at 2:17 pm to Pectus
You don't know anything about earthquakes, frick off
Posted on 8/19/14 at 2:24 pm to Pectus
When is the New Madrid expected to have its next big quake and what will happen when it does?
TIA Pectus
TIA Pectus
Posted on 8/19/14 at 2:24 pm to Pectus
Do you think the end is near?
Do you think we'll see Armageddon soon?
Do you think we'll see Armageddon soon?
Posted on 8/19/14 at 2:25 pm to Pectus
I forgot how many years until Los Angeles and San Francisco will be twin cities the move like 4 cm closer a year
Posted on 8/19/14 at 2:26 pm to Pectus
The small earthquakes that happened in Arkansas recently, are they from gas fracking or from natural causes?
Posted on 8/19/14 at 2:35 pm to Pectus
The building I work in downtown okc shook this morning. Been through a few here you could feel, first time ever feeling it make my building sway.
Posted on 8/19/14 at 2:36 pm to Pectus
When will Yellowstone erupt?
Posted on 8/19/14 at 3:07 pm to Pectus
Your info is fricked up if it calls earthquakes in the 6.0-6.9 range "moderate" 
. Also, have you ever been in an earthquake? They are so fricking scary!
. Also, have you ever been in an earthquake? They are so fricking scary!
Posted on 8/19/14 at 3:29 pm to Pectus
Posted on 8/19/14 at 3:40 pm to Pectus
How to survive one?
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