
USGS
A map shows the intensity of an earthquake felt Wednesday morning in Southern California.
An earthquake with a preliminary magnitude of 4.5 was reported this morning in Orange County, Calif., just hours after a 4.4-magnitude temblor and several aftershocks struck in nearby Yorba Linda, according to the U.S. Geological Survey (USGS).
“It’s all just part of the normal seismic activity of California,” John Bellini, a geophysicist for the U.S. Geological Survey told NBC News. “Earthquakes of this size don’t cause a lot of damage.”
The Orange County quake struck at 9:33 a.m. PT this morning. The night before, at 11:23 p.m., a 4.4-magnitude quake rattled the Yorba Linda area. At 11:25 p.m., a quake estimated at magnitude 2.7 struck in the same area, centered two miles from Yorba Linda. The third temblor -- a magnitude 1.2 -- struck at about 11:41 p.m. and was centered one mile from Yorba Linda.
Five more quakes followed in the next 50 minutes, USGS reported. All of them were within two miles of Yorba Linda and ranged from magnitude 1.4 to 2.1.
For more, visit NBCLosAngeles.com
The Orange County quake's epicenter was located five miles from Placentia, six miles from Chino Hills, and eight miles from Orange.
There were no injuries or damage immediately reported following the quake, Bellini said, adding that many people may not even notice an earthquake of this size.
After Tuesday night’s quakes, all fire resources were placed in "Emergency Earthquake Mode," Matt Spence of the Los Angeles Fire Department said in an email statement.
Firefighters from all 106 neighborhood stations on Tuesday night were surveying 470 square miles in the Greater Los Angeles area, Spence said, inspecting residential buildings, schools, powerlines and transportation infrastructures.
By 12:15 a.m., the Emergency Earthquake Mode was lifted and fire officials said they did not find any signficant damage or reports of injuries.
Hundreds of NBCLosAngeles.com Twitter followers and Facebook fans reported feeling the Yorba Linda quake.

Map showing location of epicenter of temblor that struck near Yorba Linda, Calif., Tuesday night, Aug. 7.
"Strong jolts in Whittier. Not looking forward to any after shocks," YeaMe Ceazon wrote on the NBCLA Facebook page.
The shallow quake was felt from the Inland Empire to the coast. Residents in Fontana, Anaheim, Torrance, Hollywood, Long Beach and Burbank also reported feeling the quake.
"I suddenly heard a loud thud coming from what sounded like the roof on my garage and then the whole garage started shaking and creaking," said Jose, in Burbank.
"I started to feel my bed shake and I was like, not again, and then I heard it pop, like a popping sound. And it just kept shaking, shaking, shaking and soon as I got up to get dressed it stopped," said Daphne, in Bellflower.
"I was lying on my livingroom floor of my mobile home in Hermosa Beach, watching the Olympics, when I felt some distinct shaking, light shaking, but it felt like a steady 10-second or so shaking," Karen told NBCLosAngeles.com in an email.
More content from NBCNews.com:


Tricky Dick mustve been rolling in his grave at what's become of his Republican party.
i remember the northridge quake and all its aftershocks back in the 90's. i was just a kid and was terrified. but now i just ride them through. to suppress the fear a look at them as fun roller coaster rides.
seems like the californians wanted coverage for ever little shake after the media hoopla over the eastern states got a bit shaken a few years ago. LOL! I lived in CA for a couple years and they are so common there it is like the rain storms here. Nothing to see here folks move along.
The big one is sneaking up on you in CA.
Be prepared, because it's coming sooner than you would like.
Bet scared the crap out of the Obama camp and the potential loss of his voter base their.
The North West is overdue for a large quake. Cascadia could unleash a massive one at any time. Be prepared Seattle.
Paul - Yorba Linda specifically and Orange County in general are very conservative and not even remotely liberal. With the exception of Hollywood, most of SoCal and the Inland Empire are extremely conservative while NorCal is predominantly liberal.
Yorba Linda is home to the Nixon Library, birthplace, and Museum; San Clemente, on the bluffs overlooking the ocean, was the site of the Western White House.
All we need now is a wildfire and we can have.... are you ready for this?......Shake N Bake.
Arieus, if the Big One never comes, it will be too soon.
Okie, If it never comes how could it be too soon? Did you proof read before you click the post button?
That's just a couple of people farting in Cal at the same time.
Yes, Nixon and Reagan both farting at the same time. Works for me.
Starting off with some moronic posts, eh?
You have to excuse them 54buick. They have liberal tourettes syndrome in which they yell out anything to disrespect someone who doesn't side with their crazy political philosophy.
Four to five magnitude are everyday occurrences here in Peru. Some are slow rumbling, a few are knee jerkers, depending on how close. People in California are probably used to the same thing. Helps them stir their coffee. What's news worthy is the recent outbreak of this scale of earthquakes in Texas breaking out around the fracking wells.
Love the "helps them stir their coffee" part! Thanks for the laugh! :)
yeah anything below 5.0 isn't worth talking about here in So. Cal . I keep hoping to see something in the 6.5 or above but I'm odd and actually like earthquakes , the sensation of sooo much power is awesome to me .
What news outlet are you watching? I work all around west Texas and western North Dakota with all oil drilling companies and havent heard or felt anything in the last 10 years. Man the news just keeps right on with demonizing oil companies. The world economy would implode without oil production.
ryguy198130
Let them carry on, I enjoy the humor. Even have an opportunity on occasion to antagonize them. Most of these clowns don't have clue about what oil companies do, other than what the liberal lies they are told. OK by me I don't need an excuse for wealth, don't have any but I make a good living thanks to Big Oil getting rich off my back with those sinful profits.
Just spoke with the relatives who live in So. Cal. They live about 20 minutes south of the center and said they didn't feel a thing. A magintiude of 4 point something is nothing out there.
Just one article of many: http://blog.cleantechies.com/2012/08/08/dozens-of-small-earthquakes-detected-near-texas-drilling-sites/
A University of Texas report, hardly a news organization hoping to demonize the oil companies.
This from CNN: A 4.3-magnitude earthquake rattled eastern Texas early Thursday, the U.S. Geological Survey reported. http://news.blogs.cnn.com/category/natural-disasters/earthquake/
Oh please Alsophia. Blaming earthquakes on fracking. Really? Anything to put that "evil" practice under the ground. Lets look at some real fact for a second. First of all, earthquakes -> require <- a fault line. They don't just occur anywhere. Second earthquakes are caused by huge amounts of tension that have built up in fault lines (and continues to build until relesed). If fracking happens to occur on a fault line, and it is agitating that fault line (i.e. releasing that tension) then it is actually a good thing. Since the inevitable massive release that will occur will be smaller since much of that tension was previously released. Or supposedly releasedm through fracking. If you jump to the ignorant conclusion that fracking is the cause of earthquakes then you can consider yourself a proper follower of the liberal media brainwashing campaign. Nothing mankind can do can generate the amount of energy in a earthquake. That energy comes from massive tectonic plates that are constantly in motion and rubbing against each other. As the tension builds the release is inevitable. The question isn't if it will go, but when and how big will it be? The sooner the better, because the sooner the energy is released the less tension there is. So if your theory is correct Alsophia, then fracking would actually be helpful to the situation. But the biased media would never want you to know that.
Adwaup: How about the sensation of NO power when the electricity goes out for days or weeks? I used to think that about hurricanes too - oh, how exciting - till Ike hit.
@ John,
That was one of the best commentaries I have heard on this subject. I know a few folks in the geological side of oil exploration and extraction and they all have been saying the same thing for years but don't expect the liberal media to tell the whole truth on this subject.
Liberals always scream about science until it disagrees with them.
Ive lived in So Cal for 45 years. Every time the ground starts shaking we all wonder if its the big one. I have relatives in the bay area that went though the SF quake. They thought the same thing. I was in the parking structure of the Whittier Sears just two days before the Whittier quake. Just after the quake my wife and I drove by it. It was concrete and steel structure. It was all laying on the ground. Gotta be ready for the worst. It will come sooner or later.
John Doe-2241225
Fracking is evil, causes damage to the earth and disrupts Mother Earths natural pressures, the media says so. Underground nuclear blast are OK and pollute nothing nor disrupts natures natural balance because the media says so.
I believe everything I read or see in our media, especially this one. Don't you?
P.S. Don't believe half the crap that comes out of U of T, it is one of the most liberal government schools in the world. Most research done there is to achieve a desired conclusion, to hell with actual. Been there, seen that.
The last earth quake I felt was the 6.5 San Simeon quake in 2003. I live in Nipomo about 65 miles or so from the epicenter. It was a good rocker as we say here in Ca. Lasted close to 30 seconds if I remember correctly. NO BIGGIE!! Hell anything less that 5.5 is hardly felt,depending on the depth of the quake.
Anyone noticed how Paul and John Doe are having a love fest promoting hatred of liberals? No one's disagreeing or replying to either of them--but it doesn't stop their crazy rightwing nonsense. Hilarious!
John,
I guess you have heard of the University of Texas. They are the ones that published this report.
http://blog.cleantechies.com/2012/08/08/dozens-of-small-earthquakes-detected-near-texas-drilling-sites/
The University of Texas is hardly a "liberal media".
But I guess science studies do no enter into this discussion.
Also, at the time they published there had not occurred the 4.3 magnitude.
Getmadstaymad : Several years ago God gave a Christian Brother a vision of a earthquake, if you will google: " A Great Earthquake coming - Hand of Help " you will learn of the most severe quake that is soon to hit California.
God has never allow the destruction of a people or nation that he hasn't given them His warnings first.
wwjd,
Yeah, probably a good thing they're not close enough to get physical with it. Wouldn't be a pretty sight.
Did you read my comment Alsophia? I'm not arguing their research, I'm arguing their conclusion. I'm arguing what you're implying, and I'm arguing what they forgot to mention in their research. Re-read my original comment for clarification.
alsophia, He never said U of T was a liberal media. Paul said it was a liberal government college. Maybe a refresher course in reading comprehension is in your future. Or maybe you know exactly what you were saying and just trying to purposely take one persons words and put them in another persons mouth. Liberals usually work like that. A favorite phrase of theirs is "the end justifies the means" and another is "whatever it takes". Even if it means to lie.
WWJD999
Your ignorance doesn't deserve a reply. Maybe you & alsop can sit next to each other in reading comprehension class.
Nope,
I stand my ground on everything I posted. As soon as information that doesn't suit one's political agenda appears it is so common to blame it on "liberal media", and when I showed that it was UT information someone counters that even that cannot be trusted because they are a "liberal govt. school" ............you guys just can't stand having your BS called is what this has now become.
My reading comprehension skills are more than adequate, probably much greater than yours.
I am not a liberal. I am a radical, a Trotskyite that even liberals shy away from.
OK, that's fine. But based on simple science and logic your alarmist claim has no founding. Again, if you had read my post you would have recognized that. But go ahead keep trying to scare people.
@Common Sense-2004266
If the power goes out for weeks it goes out , whatever . I grew up camping where you need no power and have everything I need should such a thing happen , though I doubt it would be all that long before power is back up even if it did go down . And my house is pretty new (less than 1 year old) and have all the latest earthquake codes followed during construction so it should withstand an 8.0 with no problem .
Probably just a drug tunnel collapsing.
There must be a way to blame these quakes on Obama. Anyone? Anyone?
Okay,
It's the economy falling further into oblivion.
snaque - and they're off! Satisfied? heh-heh
nope but according to the first couple of bone headed posts, it's the republicans fault. if anything California is trying to get away from the obama-commie
The Big One is coming......someday, soon!! Ouch.
That's what she said!
:D
It's not Obama's fault, he't a Democrat, it's the Quaker's fault!
heh-heh reference above posts, Tricky Dick was a quaker!!
cute...good chuckle!
Earthquake? Hardly,..It is just the latest phase of the illegal immigrant/express voting tunnel for Obama. They have to get it completed by November.
These must be the 'shovel ready jobs' he was touting.
Now that is funny
Burt, so that's going to be your excuse when Romney losses in November? that illegals won it for him?
Even if Obama passed CIR the first day he took office it will still be another year after November 2012 before those new residents could vote in elections. Or are you going with the Florida governor paranoia?
It takes five years to become a citizen. Unless hes already thinking of the 2016 elections????
Alex, the democrats are registering anybody they can. citizens or not, breathing or not. But if the republicans suggest that everybody who votes needs to have ID, oh my gosh...they are discriminating against millions of people.
we as a country need to clean up the voter registration rolls and true the vote.
alex wake up! you do not need to show an I.D
Alex Cali: First of all -you're not supposed to be able to see my comment, the tolerant libs here collapsed it, and secondly,..I'm pretty sure Romney will not 'losses' in November, so you can stop digging that tunnel,..just turn around and start digging the other way.
Yorba Linda is about 100 miles north of the Mexican border, roughly the equivalent of tunneling from Coney Island, Brooklyn to Philadelphia. That would be one heck of an effort, especially the 17-mile stretch under Camp Pendleton.
Burt, you seriously think that Romney will not make himself look foolish in the debates? every time he opens hes mouth he f$@% EVERYTHING up!!!
I believe that a day after the debates the press will eat him alive.
Seriously the only way i see him having a chance in the debates is if they come out with a new technology of invisible ear microphones and a team of researchers in the background feeding him the right information.
Im very sure Sheldon can spare 30 million for a team of scientists to develop the technology.
Im going to have the popcorn ready in September for the debates, because its going to be hilarious watching Romney.
Whemever the socialist agenda has its way things collapse. The economy, hope for the future, education standards ... so why not the stability of the earth itself.
Dennis,
Obviously the education standards have collapsed. Whemever?
Alsophia theophilos,
Jawohl herr grammatik nazi! -_-
saywhat?
You got no sense of humor or what?
Eigentlich bin ich eine Grammatik trotzkistischen.
alsophia - new word? Combination of whomever & whenever? LOL
That Bush guy must have had a he!! of a socialist agenda... The economy, hope for the future, and education standards all fell apart in hes watch.
Hope all is well. Earthquakes are unnerving.
Not to Californians that I know of. :)
Obviously you have never watched the walls of your home turn to what looks like rubber bending to and fro. I was in the So Cal quakes in the 60's and 70's 7 plus magnitudes. something as a kid I will NEVER forget. You've probably never been thrown out of bed in a deep sleep sprawling across the floor from one either. I've seen transformers blow up, my grandfathers pool empty itself, watched my mother and fathers king size bed slamming into the walls back and forth several times, and many other unnerving things.
It's just the California economy collapsing, that's all....
California still has the 8th largest economy in the world. If it was a country all by itself it will be doing fine compared to other countries fiscal problems.
The number one reason people hate California is because all those 55 electoral votes always go Democratic.
Get ready because Texas is going to become a swing state. Every year more and more voting gets closer and closer. Democrats in just 4 states will have more than half of all electoral votes needed.
I know republicans will try to change the electoral system so they can stay in the game. The only way you guys are going to accomplish that is to have a straight conservative supreme court. Thats why when you guys loose in November good luck trying to change the electoral system for at least 30 years.
Alex, yah gee the dem's have never redrawn the lines in their favor either.
California is NOT doing well. Moonbeam is raising taxes more and more but the state gov, just like the feds dont know the meaning of fiscal responsibility. They both need to cut spending.
Alex make sure you thank Pelosi, Fienstein, Boxer & Maxine Waters & all the other liberial left wing pos that are tanking the 8th largest economy in the world. Good thing your Gov is making California a sanctuary state. He is doing his best to finish what Grey Davis started
4.4 isnt even enough to be newsworthy. Must be a slow day.
4.4 in Southern California, YAWN!, must be a slow news day. I live on the coast in Carlsbad 35 miles north of San Diego and felt nary a shivver.
Exactly what I was thinking. On the other hand, it gives the political and relgious nut jobs something to vent about, eh? LOL
Feisty - SURE in about 1 1/2 BILLION years, I wouldn't go trying to buy up any beach front property in Mojave yet. :)
I live in Orange County and never felt a thing. 4.4 is nothing.
PS Feisty...you pic is hysterical!
I love how you throw in the word. " Temblor" now my questions is why?? is this a way of saying Tsunmi when in America we say Tidal wave, or maybe Hurricane until its a Typhoon. lol
You say Tidal Wave in America because you have no idea what a tidal wave is. Tidal waves are caused by a tidal event and travel into bays and rivers. Tsunami are caused by displacement of water in the open ocean.
Hey, Lord Gupta, some of us in America know exactly what tidal waves and tsunamis are and the differences between them. You really shouldn't judge an entire people by a few comments. Isn't that what we Americans get accused of so often?
Lord Gupta - tsunami is japanese for tidal wave and typhoon is japanese for hurricane.
Temblor is used by Spanish speaking people along with terremoto, temblor meaning tremor, terremoto meaning earthquake. Nothing wrong with using the word temblor.
There will be earthquakes in one place after another. Matthew 24:7 and Luke 21:1 calls them Great
earthquakes . So we are seeing earthquakes everywhere and in places not so common. Also, larger in strength.
Could the Bible be telling us something? Also, Jesus talked about other things that would be happening in our
time. Matthew Chapter 24 and Luke Chapter 21 is where I got this from. No one else seems to have any
answers to Why?
George, Jesus was refering too something else. Most Christains (and non-Christains) do not interperate this passage fully. Earthquakes have been around since the earth has been around. The meaning of this passage refers...now wait... TO THE FREQUENCY and THE INTENSITY of earthquakes around the world. It is up individuals to ponder if this is occurring--or not.
george388.... I see that all the nuts are out in force today.
Well, speaking in Biblical terms as you are, I used to live in California and live Oklahoma now. I would trade my 1600 sq ft home for a 400 one in California in a heartbeat.
In Oklahoma, they have tornadoes, several pretty big earthquakes and aftershocks back in November like I've never felt here before, wildfires, militia loonies, collecting assault rifles, the top ten always in drug addiction, abused and murdered children, domestic violence, and divorces. But they all go to church three times a week.
So, I can't imagine what Go is thinking or WHY there would be a problem in California. In California, I never experienced religious abuse, intolerance that I am thin, gun collectors and a new law that says they can carry them around in holsters effective 11/01, and the ugly behaviors and words I hear every day I leave my home. Why in the world would God be punishing the buckle of the Bible Belt?
It's called "Plate Tectonics", George, which you would know if you had received even a basic American PUBLIC education.
ScienceCzar,
Whenever there are eleven earthquakes ranging up to 4.3 in magnitude striking east and north Texas within a span of 40 days, all centered at the sites of fracking injection wells, I would say something other than "Plate Tectonics" is at work. California? Yep, plate tectonics. East Texas? Earthquakes just don't happen there, normally that is.
No he did'nt George
Because the questions are unanswerable.
Besides--they've been predicting the end of the world since JC died.
What does it matter what the bible says? Just a book full of myths told over time so some religious nuts could control people and get rich off of them.
small small quake..really I agree must be a very slow news day! I live in Corona California and dont even get out of BED for less than a 5.7!
that must make it a struggle getting to work. ;)
animal luver - Now CORONA, that is a bit closer to the big Kahuna that's coming. I lived in San Bernardino and went to High School there, our Physical Science teacher explained what and when the BIG one would hit. He said about 10 miles beneath Big Bear there was a piece of solid granite the size of Rhode Island sitting right on the San Andraes fault line and the northwest slipping of everything west of the fault has been building up for millions of years, there is such immense pressure on that granite that when it finally fractures that everything on the west side of the fault will immediatly slip northwest 200 or more feet, this will cause the 10.0 BIG one everybody is always talking about. And that was explained 50 years ago. I moved to Carlsbad 20 years ago, so now the only thing I have to worry about is the San Onofre Nuclear Power Plant right up the coast. Peace.
we are going to elect a mormon hell the end of the world is coming my friends!!!!!
I live in Toluca Lake (next to North Hollywood and Burbank)...and we didn't feel anything. That's weird that everyone around us did.
I was on the fourth floor of the new medical building across from St.Joe's ..... it swayed....hope it was built correctly...(Burbank,CA)
Glad it wasn't too big, I'm from Cali and I remember them quite well.
In Alaska 4.4 means roll over and go back to sleep. Doesn't even justify getting out of bed.
One year in Wasilla while school was in session, I remember the teacher teaching on Earthquakes and what caused them. Just then a 5.4 earthquake struck. Teacher got high marks for great teaching aids
lol....an earthquake always scared me when we lived in So Cal...and I swear I could feel even the slightest ones that were only 2.0 or so....stay safe everyone!
WE are in NORWALK, and just felt another one 9:45 AM 8/8/12, it felt strong and quick. to us, I feel dizzy before during and after they hit...our animals feel them too, It is hard to believe these are so small. And I hope they are after shocks !I have lived here in CA 53 yeas and we have had some BIG ones, but these are strong JOLTS that pass quickly.
This is caused by the Liberal Party, High end Movie Stars and the Unions sucking the Life out of the California Economy. Good Luck to them
The USGS can no more predict an earthquake than my 10 yr. old Grandson. They just had a Volcano blow it's top. Then they said "WE HAD NO IDEA" it would do this. Never second guess Mother Nature...! An that you can take to the bank..!!!!
Earthquake risk is the price Californians have to pay for not having to shovel snow.