Free Republic
Browse · Search
News/Activism
Topics · Post Article

Skip to comments.

Experts: L.A. Quake Fault "Capable of Massive Temblor"
KTLA News ^ | March 18, 2010

Posted on 03/18/2010 11:11:48 AM PDT by Touch Not the Cat

The moderate earthquake that struck the Los Angeles area Tuesday likely occurred a long a fault that could generate a much stronger, major quake in the future, according to scientists.

Seismologists say the Puente Hills thrust system could touch off earthquakes up to magnitude 7.5 directly underneath downtown Los Angeles. Such temblors would prove larger than any in the modern history of the Los Angeles Basin.

The Puente Hills fault, which winds through the area's fractured underbelly for about 25 miles -- from northern Orange County to Beverly Hills -- has generated at least four earthquakes ranging from magnitude 7.2 to 7.5 in the last 11,000 years, according to a study published in the journal Science.

"The bad news," the report said, "is that when the Puente Hills thrust fault ruptures in an earthquake, it tends to do so in a very big way."

Tuesday's magnitude-4.4 quake struck at 4:04 a.m. and was centered 1 mile east-northeast of Pico Rivera, according to the U.S. Geological Survey.

There were no reports of serious damage or injuries.

Residents as far away as San Diego and Santa Clarita reported feeling the quake, which consisted of some rumbling and a quick jolt.

Seismologists have not determined which fault was responsible for Tuesday's shaker, however, Daniel Ponti of the U.S. Geological Survey told the Whittier Daily News that it was likely on the Puente Hills thrust system.

(Excerpt) Read more at ktla.com ...


TOPICS: US: California
KEYWORDS: earthquake; usgs
Navigation: use the links below to view more comments.
first 1-5051-74 next last
.
Sue Hough, a seismologist in the Pasadena office of the U.S. Geological Survey said, "This is the fault that could eat L.A."
1 posted on 03/18/2010 11:11:48 AM PDT by Touch Not the Cat
[ Post Reply | Private Reply | View Replies]

To: Touch Not the Cat

The entire state is at as much risk, but of course its always all about LA.


2 posted on 03/18/2010 11:13:24 AM PDT by skeeter
[ Post Reply | Private Reply | To 1 | View Replies]

To: skeeter

.
Si!


3 posted on 03/18/2010 11:14:11 AM PDT by Touch Not the Cat (You may have to fight when there is no hope of victory; it is better to perish than to live a slave)
[ Post Reply | Private Reply | To 2 | View Replies]

To: Touch Not the Cat
Image and video hosting by TinyPic
4 posted on 03/18/2010 11:14:37 AM PDT by b4its2late (A Liberal is a person who will give away everything he doesn't own.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Touch Not the Cat

They’ll probably get extra money from the feds to deal with the earthquake like Hawaii had.


5 posted on 03/18/2010 11:15:04 AM PDT by neodad (USS Vincennes (CG 49) "Freedom's Fortress")
[ Post Reply | Private Reply | To 1 | View Replies]

To: Touch Not the Cat

Puente Hills? They’re the Whittier Hills to those of us from Whittier.


6 posted on 03/18/2010 11:17:08 AM PDT by Taft in '52
[ Post Reply | Private Reply | To 1 | View Replies]

To: Touch Not the Cat

“Seismologists have not determined which fault was responsible for Tuesday’s shaker”....

In other words....Which fault is at fault?


7 posted on 03/18/2010 11:18:10 AM PDT by AngelesCrestHighway
[ Post Reply | Private Reply | To 1 | View Replies]

To: Touch Not the Cat

I see the word “thrust” in this story, and I also seem to recall it associated with the recent Chilean quakes.

Is this “Puente Hills” fault the same as the one in Chile?


8 posted on 03/18/2010 11:18:32 AM PDT by DuncanWaring (The Lord uses the good ones; the bad ones use the Lord.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: AngelesCrestHighway

Bush’s Fault is at fault, of course.


9 posted on 03/18/2010 11:18:59 AM PDT by DuncanWaring (The Lord uses the good ones; the bad ones use the Lord.)
[ Post Reply | Private Reply | To 7 | View Replies]

To: AngelesCrestHighway
“Seismologists have not determined which fault was responsible for Tuesday’s shaker”....

I'm no geologist, but that's easy. It was Bush's Fault!

10 posted on 03/18/2010 11:19:51 AM PDT by OB1kNOb ( I WILL NOT COMPLY !)
[ Post Reply | Private Reply | To 7 | View Replies]

To: skeeter

That’s because they are talking about the fault which had the quake this week. No one disputes that all of CA and the Pacific Northwest are at risk ... but from other fault lines.


11 posted on 03/18/2010 11:20:29 AM PDT by BunnySlippers (I LOVE BULL MARKETS . . .)
[ Post Reply | Private Reply | To 2 | View Replies]

To: Touch Not the Cat

God: “How long can you tread water” Ha, Ha, Ha.

http://www.youtube.com/watch?v=bputeFGXEjA


12 posted on 03/18/2010 11:21:52 AM PDT by gathersnomoss (General George Patton had it right.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Taft in '52
I have a commercial building right off of Whittier Blvd about four miles from the epicenter. Our surveillance video is pretty cool with a few things falling and the hanging fluorescent lighting swinging wildly.
13 posted on 03/18/2010 11:25:10 AM PDT by 12chachacha
[ Post Reply | Private Reply | To 6 | View Replies]

To: Touch Not the Cat

Haiti. Chile. California. Earthquakes in diverse places.


14 posted on 03/18/2010 11:27:00 AM PDT by GreenHornet
[ Post Reply | Private Reply | To 1 | View Replies]

To: DuncanWaring

The main faults all down the west coasts of both continents are of the strike/slip variety, but there are all kinds of tertiary fractures associated with the pressures they generate.


15 posted on 03/18/2010 11:28:48 AM PDT by skeeter
[ Post Reply | Private Reply | To 8 | View Replies]

To: Touch Not the Cat

Duh.

LA will get eaten for lunch someday.

This has been known forever.

And it will happen again and again and again as long as there are active faults in the area.


16 posted on 03/18/2010 11:31:05 AM PDT by Names Ash Housewares
[ Post Reply | Private Reply | To 1 | View Replies]

To: BunnySlippers
They're not sure which fault generated the recent quake.

The story could've been written the same way about any other fault in the state.

17 posted on 03/18/2010 11:32:13 AM PDT by skeeter
[ Post Reply | Private Reply | To 11 | View Replies]

To: GreenHornet
Haiti. Chile. California. Earthquakes in diverse places.

D*** George Bush for causing all these quakes! But at least he is learning the importance of being multi-culti...

18 posted on 03/18/2010 11:33:50 AM PDT by 17th Miss Regt
[ Post Reply | Private Reply | To 14 | View Replies]

To: DuncanWaring

Thrust faults push one layer under the other. i.e. the movement is perpendicular to the fault line. There tends to be a lot of vertical motion.


19 posted on 03/18/2010 11:37:42 AM PDT by MediaMole
[ Post Reply | Private Reply | To 8 | View Replies]

To: AngelesCrestHighway

Don’t you know? It’s BUSH’s fault.


20 posted on 03/18/2010 11:40:54 AM PDT by bboop (We don't need no stinkin' VAT)
[ Post Reply | Private Reply | To 7 | View Replies]

To: Touch Not the Cat

Did you see the name of the new fault?

. . . . get ready . . . .

Bush’s Fault!


21 posted on 03/18/2010 11:41:34 AM PDT by Jewbacca (The residents of Iroquois territory may not determine whether Jews may live in Jerusalem.)
[ Post Reply | Private Reply | To 1 | View Replies]

To: DuncanWaring

A thrust fault is just one of the ways the earth slips. There are faults all along the coasts where the plates meet. All different kinds. All of them are Bush’s fault, of course.


22 posted on 03/18/2010 11:42:30 AM PDT by bboop (We don't need no stinkin' VAT)
[ Post Reply | Private Reply | To 8 | View Replies]

To: b4its2late

No kidding. What’s the “experts” next feat of cranial wonderment? Predictions of snowfall at the North Pole?


23 posted on 03/18/2010 11:43:03 AM PDT by randog (Tap into America!)
[ Post Reply | Private Reply | To 4 | View Replies]

To: Touch Not the Cat

Dear Big One:
Get it over with!
Signed,
Y2TR.


24 posted on 03/18/2010 11:44:18 AM PDT by yield 2 the right
[ Post Reply | Private Reply | To 1 | View Replies]

To: Touch Not the Cat

Seattle is due for their 300 year ~9.0 magnitude quake since the last one was in 1700CE.

Who will get hit first? L.A. or Seattle?


25 posted on 03/18/2010 11:44:58 AM PDT by Jack Hydrazine
[ Post Reply | Private Reply | To 1 | View Replies]

To: DuncanWaring

Chile lies alongside a subduction zone where oceanic material is subsumed back into the mantle. Foci are relatively deep, 35 to 200km or more.

LA from roughly San Diego north to Crescent City is “transpressive” with strike-slip and thrust faults, mainly shallow focus to about from 5 to 15km or so. I’d rather live here than there.


26 posted on 03/18/2010 11:55:45 AM PDT by onedoug
[ Post Reply | Private Reply | To 8 | View Replies]

To: Jack Hydrazine
1700CE

CE?, CE?!

Here we proudly post BC, leave that lib crap out.

27 posted on 03/18/2010 12:02:04 PM PDT by Las Vegas Ron ("Because without America, there is no free world" - Canada Free Press - MSM, where are you?)
[ Post Reply | Private Reply | To 25 | View Replies]

To: Las Vegas Ron

CE is Christian Era or Common Era.
BCE is Before the Common/Christian Era.

Jews use it and no one else that I know of.


28 posted on 03/18/2010 12:10:12 PM PDT by Jack Hydrazine
[ Post Reply | Private Reply | To 27 | View Replies]

To: AngelesCrestHighway
In other words....Which fault is at fault?

Why, Bush's fault, of course!!!

29 posted on 03/18/2010 12:10:33 PM PDT by SoldierDad (Proud Papa of two new Army Brats! Congrats to my Soldier son and his wife.)
[ Post Reply | Private Reply | To 7 | View Replies]

To: gathersnomoss

Ping to watch later.


30 posted on 03/18/2010 12:12:58 PM PDT by SoldierDad (Proud Papa of two new Army Brats! Congrats to my Soldier son and his wife.)
[ Post Reply | Private Reply | To 12 | View Replies]

To: Touch Not the Cat

The quantified predictions are the equivalent of Global warming conjecture. There is no way the man knows what he said.


31 posted on 03/18/2010 12:13:33 PM PDT by bert (K.E. N.P. +12 . Tax the poor. Taxes will give them a stake in society)
[ Post Reply | Private Reply | To 1 | View Replies]

To: Jack Hydrazine
Jews use it and no one else that I know of.

Libs use CE and BCE, it's the politically correct dating system, I know what it stands for.

I have never seen Jews use anything but Before Christ or Anno Domino, BC and AD.

32 posted on 03/18/2010 12:13:44 PM PDT by Las Vegas Ron ("Because without America, there is no free world" - Canada Free Press - MSM, where are you?)
[ Post Reply | Private Reply | To 28 | View Replies]

To: AngelesCrestHighway
In other words....Which fault is at fault?

They are still searching for one named Bush's fault.

33 posted on 03/18/2010 12:14:25 PM PDT by commish (Freedom tastes sweetest to those who have fought to preserve it.)
[ Post Reply | Private Reply | To 7 | View Replies]

To: b4its2late; winoneforthegipper

PING to the thread.


34 posted on 03/18/2010 12:19:11 PM PDT by Quix (BLOKES who got us where we R: http://www.freerepublic.com/focus/religion/2130557/posts?page=81#81)
[ Post Reply | Private Reply | To 4 | View Replies]

To: Las Vegas Ron

And Jews are the ones who have a disproportionate amount of influence on other cultures because of the trends they start.

Why do you think Jews would use BCE and CE instead of AD and BC? Think about it for a sec.


35 posted on 03/18/2010 12:34:13 PM PDT by Jack Hydrazine
[ Post Reply | Private Reply | To 32 | View Replies]

To: Touch Not the Cat

Being an incurable nerd, I got an app for my i phone called Quake Watch. The daily number of very small quakes in California are amazing. Responsible are a profusion of volcanic areas and fault zones which don’t necessarily affect each other.


36 posted on 03/18/2010 1:03:00 PM PDT by JimSEA
[ Post Reply | Private Reply | To 1 | View Replies]

To: JimSEA
.
Yes, you are correct.

It does kind of bother me that while 4.4 is NOT a big quake, usually even those have aftershocks. So far this one hasn't.

It's making me a little nervous.

37 posted on 03/18/2010 1:13:58 PM PDT by Touch Not the Cat (You may have to fight when there is no hope of victory; it is better to perish than to live a slave)
[ Post Reply | Private Reply | To 36 | View Replies]

To: Touch Not the Cat

It was a little deep for this area at 18.9km (11.7 miles). ‘Could be that relatively small motion is tectonically locked in down there, thus no after shocks. It could also be that this event was an aftershock of several others over the past 10 years or so. Though undoubtedly it’s a sign of accumulationg stress along at least that part of the overall SoCal system, which will eventually bust out somewhere therein sooner or later.


38 posted on 03/18/2010 1:37:20 PM PDT by onedoug
[ Post Reply | Private Reply | To 37 | View Replies]

To: onedoug
Here's a fairly recent abstract from "Geology". The article's for sale but the details seem pretty straight forward otherwise.
39 posted on 03/18/2010 1:49:40 PM PDT by onedoug
[ Post Reply | Private Reply | To 38 | View Replies]

To: Jack Hydrazine
Think about it for a sec.

Sorry, I don't know any lib, self hating jews, you think about it.

40 posted on 03/18/2010 1:50:48 PM PDT by Las Vegas Ron ("Because without America, there is no free world" - Canada Free Press - MSM, where are you?)
[ Post Reply | Private Reply | To 35 | View Replies]

To: Quix

Thanks for the Ping.


41 posted on 03/18/2010 3:08:57 PM PDT by winoneforthegipper ("If you can't ride two horses at once, you probably shouldn't be in the circus" - SP)
[ Post Reply | Private Reply | To 34 | View Replies]

To: DuncanWaring
Though this fault line is not a subduction zone it does have an element that was not present in Chile.

This Whittier fault line is capable of producing what is called a “Super Shear” earthquake, where by the “Shear” or S/waves are channeled is such a way as being able to over take each other. What causes this is that the waves actually break the sound barrier while they are propagating outward from the fault quake.

There is much debate on what this actually means to the overall resulting damage from a quake, but it is thought that it holds the key as to why in some slip/strike earthquakes of the same magnitude, the damage is not.

42 posted on 03/18/2010 3:17:01 PM PDT by winoneforthegipper ("If you can't ride two horses at once, you probably shouldn't be in the circus" - SP)
[ Post Reply | Private Reply | To 8 | View Replies]

To: winoneforthegipper; Steve Van Doorn

Fascinating.

I’m wondering . . . would you and your cohorts be able to conjecture productively about . . .

ASSUME that a massive, long mountain ridge is to appear with great suddenness over much of the length of California . . .

where

would you expect such a thing . . . and to run from where in the South to where in the North?

And where might subsidence or sinking be on the West and/or East of such a rising ridge?


43 posted on 03/18/2010 4:37:01 PM PDT by Quix (BLOKES who got us where we R: http://www.freerepublic.com/focus/religion/2130557/posts?page=81#81)
[ Post Reply | Private Reply | To 42 | View Replies]

To: gathersnomoss

my wife is going to love that tape.


44 posted on 03/18/2010 5:09:30 PM PDT by Steve Van Doorn (*in my best Eric cartman voice* 'I love you guys')
[ Post Reply | Private Reply | To 12 | View Replies]

To: Steve Van Doorn

One of my favorites as a young teen.


45 posted on 03/18/2010 5:14:16 PM PDT by gathersnomoss (General George Patton had it right.)
[ Post Reply | Private Reply | To 44 | View Replies]

To: Quix
IIRC the Pacific Plate is the one that is rising. A large quake along the San Andreas fault (which is mostly in or east of the San Gabriel Mountains) would lift the L.A. side up about 12 feet.
46 posted on 03/18/2010 5:37:51 PM PDT by BenLurkin
[ Post Reply | Private Reply | To 43 | View Replies]

To: BenLurkin; Quix

whoa.. very scary & very probable. Not if, just when


47 posted on 03/18/2010 5:40:42 PM PDT by DollyCali (Don't tell God how big your storm is...Tell the storm how big your God is!)
[ Post Reply | Private Reply | To 46 | View Replies]

To: BenLurkin; Quix
For the most part the Pacific Plate and the North American Plate in the California region anyways is considered a transform Boundary, so a single earthquake most likely would not result in a trench or a rise of any significance.

However, Quix I will answer your question in another post shortly.

48 posted on 03/18/2010 7:04:14 PM PDT by winoneforthegipper ("If you can't ride two horses at once, you probably shouldn't be in the circus" - SP)
[ Post Reply | Private Reply | To 46 | View Replies]

To: BenLurkin

I assume it would be a series of quakes—likely in rapid succession.

One source asserts that observers in the right place will be able to see mountains of a considerable height rise rapidly as they watch.

A pretty dramatic prediction.

I’ve long expected things that dramatic in the end times but have never run across anyone else who thought anything remotely like that . . . until the last several months.


49 posted on 03/18/2010 7:22:04 PM PDT by Quix (BLOKES who got us where we R: http://www.freerepublic.com/focus/religion/2130557/posts?page=81#81)
[ Post Reply | Private Reply | To 46 | View Replies]

To: DollyCali

Am curious what leads you to that conclusion. I haven’t ran onto many who have our perspective.


50 posted on 03/18/2010 7:22:45 PM PDT by Quix (BLOKES who got us where we R: http://www.freerepublic.com/focus/religion/2130557/posts?page=81#81)
[ Post Reply | Private Reply | To 47 | View Replies]


Navigation: use the links below to view more comments.
first 1-5051-74 next last

Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.

Free Republic
Browse · Search
News/Activism
Topics · Post Article

FreeRepublic, LLC, PO BOX 9771, FRESNO, CA 93794
FreeRepublic.com is powered by software copyright 2000-2008 John Robinson