5.5 Colorado Earthquake

Originally posted by Phage
reply to post by Anusuia

 

It's not abnormal.
neic.usgs.gov...

With all due respect phage, I think if you look again at the map you linked, and then this one you'll see a distinct difference.

The map I linked, IMO is an example of an earthquake prone area. Even then, that doesn't mean a 5.3 would be normal...depends.

Take another look at the historical map for the area in question in colorado. Not that much. Yes, they have quakes...but that is for over 20 yrs and NONE of them are big...looks like mainly micro quakes. I would say a quake of this size...especially so many in one day, historically speaking is NOT normal for the area.

Just today:

MAP 5.3 2011/08/23 05:46:19 37.118 -104.622 4.0 3 km ( 2 mi) S of Cokedale, CO
MAP 3.0 2011/08/23 02:48:52 37.056 -104.726 5.0 13 km ( 8 mi) SW of Cokedale, CO
MAP 4.6 2011/08/22 23:30:20 37.050 -104.774 5.0 17 km ( 11 mi) SW of Cokedale, CO
MAP 2.9 2011/08/22 13:52:34 37.094 -104.709 5.0 10 km ( 6 mi) SW of Cokedale, CO


Check out the depth. What kind of volcanic structures are around there??? Time to pull up some live seismos...

Lots of responses

earthquake.usgs.gov...

reply to post by Wookiep


I'm in the springs too. I happened to be laying on the couch; I don't think I would have noticed it if I had been standing or sitting since it didn't make any noise and was just a few seconds of rocking.

Originally posted by Wookiep
reply to post by Sly1one

 

Lol, where are you guys at?? Pueblo, Colorado City, Walsenburg, Trinidad?

Pueblo my colo brotha...

reply to post by xenthuin



Wow, thanks for the feedback. I must not be very perceptive! I didnt feel anything.

Reply to Sky1one:

Just a hop skip and a jump away! Man, you guys are lucky, I need to stop slacking and pay more attention next time.

For the record

[atsimg]http://files.abovetopsecret.com/images/member/7baa261a4838.jpg[/atsimg]

Looks ominous to me.

We have been waiting for something big but whoda thunk Colorado?

It's a micro swarm going on, got it up in GEE, and another but smaller just hit looks like 2 ish or so- but there is constant microquakes happening...

Interesting. Will keep an eye...

reply to post by berkeleygal


Well, it figures. After tons of time contemplating and decision making, I finally just bought a new (well, new/used) car TONIGHT. It would be my luck that an earthquake would destroy it!

Although I've never been in a real earthquake, just some very minor ones in Cali when I was a kid. It would be interesting to know what it feels like to be in a sizable one.

reply to post by Wookiep


lol, trust me, I've been in one and it's no fun. A weird primal fear sets in, and for a minute or two you feel helpless, like a little girl who's in a carriage her mother let go of and it's rolling into a busy freeway.

Then it stops. *poof*

reply to post by Wookiep


Congrats on your new car

I have lived here in the Bay Area since 1983 and have felt small ones. The Loma Prieta in 1989 I missed, was in Denver. Was disappointed that I missed that one, it would have been the biggest I have felt. I have never been scared, just excited with the ones I have felt. But I figure that when the big one hits me I will need a fresh pair of undies

reply to post by TrueAmerican


Sounds terrible. Where was that quake located? Where were you when it hit? I would hope to dear God I wasn't under a bridge or something.

reply to post by Wookiep


Well actually I've been in two, the bigger in Costa Rica, the other in the DR.

I literally watched the ground behave like the ocean when those S-waves came in. You SEE them coming across a field but they are on you so fast you are shaking before what you saw registers in your brain. They move at roughly 4 Km per second, so yeah, it's fast as ....

And more on topic:

Still watching GEE and the microactivity continues non stop- real small quakes back to back- and then a bigger one occasionally.

Woah!!! TA, ya watching TA.T25A???

Another large quake just hit a few minutes ago, and it is ROCKING with small ones.

Anyone local feel that one?

reply to post by berkeleygal


How Ironic that you were in Colorado when that one hit. Now we are talking about one hitting in Colorado! Maybe you'll be in the Bay area when the big Colorado quake hits.

Anyone else notice the recent quake surge in the vicinity of the 37th parallel globally? Just an observation.

reply to post by westcoast


Where is that geographically speaking (in terms of Colorado locations)? I didn't feel anything, but then again I've already proven I'm not very good at this.

reply to post by westcoast


Yes ma'am, that is the station. I am tri monitoring and confirming with TA.S22A and US.SDCO in addition to the closer TA.T25A

Also, it looks like 120 microns/sec at T25A may be less than 2.5 that close to epicenter. And I say 2.5 because that is cutoff on the USGS main link.

reply to post by TrueAmerican


I've got SDCO up too. Another one just now. Those look to be around 4-5 mags too, don't ya think? The micro activity in between is quite impressive. At that depth, are you thinking volcanic? I am...except for it's a bit large. Interesting.

reply to post by westcoast


See note above I added. I don't think those we've just seen are much over 2.5 if that, cause USGS hasn't reported the last several of them yet.

When you see 600 or more, that's going to start getting up there. Don't have a GEE reference on the 5.3 yet, might dig it up in GEE here in a minute.

Jesus, just dug up the 5.3 and it registers a whopping 9 mm/sec!

Yeah, that station is way close to this thing, and it's going to throw us off bigtime.

So WAY reduce magnitude guesses.