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Earthquake News
Earthquake News
02-01-2009 12:25 PM
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SoCal Quake Followed by Quake on Mexican Border
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SoCal Quake Followed by Quake on Mexican Border Southlanders Who Felt Quake Say It Was Scary
Full Story
Fri, Jan 9, 2009
Quake strikes south of San Bernardino in the Inland Empire, near Los Angeles.
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A moderate earthquake centered in San Bernardino last night was felt over a wide area of Southern California from Ventura County to the Mexico border.

Details of the quake centered south of San Bernardino on Thursday, Jan. 8, 2009, were explained at a news conference a short time after it struck.

The magnitude 4.5 earthquake struck one mile south of San Bernardino at 7:49 p.m. Thursday, according to the U.S. Geological Survey.

Then at 8:47 p.m., a magnitude 3.3 earthquake, possibly an aftershock, struck in the same area, one mile south of San Bernardino, the U.S. Geological Survey reported.

Hours after the quake centered south of San Bernardino, two small earthquakes rumbled along the Mexico border, in Baja California. The U.S. Geological Survey issued preliminary measurements of the 3.3- and a 3.0-magnitude quakes striking a little before 5 a.m. Friday. The quakes were in northern Baja California, near Mexicali, about 125 miles east of San Diego.

On Thursday night, many Southlanders reported a rolling feeling that lasted as long as 10 to 15 seconds. There were reports of minor damage at the Inland Center Mall in San Bernardino.

"We were extremely fortunate, the assessments came back from the engine companies and the different stations as minor damage at best. No major damage was seen or reported," Steven Tracy of the San Bernardino Fire Department told ABC7.

The minimal damage included reports of cracks in concrete or in stucco on homes, according to ABC7.

The temblors were also felt in the San Fernando Valley, Hollywood, Orange County and Riverside.

"We were upstairs, me and my fiancee, and all of a sudden we just felt like a little rumble, and then as it got I guess closer the walls started like rolling in a rolling motion, and it got really loud," Highland resident Tom Rodriguez told KCAL9.

Rodriguez said there were no visible damages to his home.

Another resident, Mary Cutcliffe of Moreno Valley, told the station that she was startled by the sudden shaking.

"I felt a big jerk and picture frames fell from my chimney and my picture frames fell from my table, when I went to the kitchen all my cans fell off," Cutcliffe told KCAL9.

"I got so scared and my dog started barking. I went outside and nobody's out there. I still do (have power), it felt stronger than the last one. I heard like a long shaking, a long jolt," she said.

Personnel at Los Angeles Police Department stations in Hollywood, Van Nuys and North Hollywood reported no immediate injuries, incidents or damages.

Copyright Associated Press / NBC Los Angeles

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Moderate Earthquake Strikes Near San Bernardino
SAN BERNARDINO, Calif. (AP) ?

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A moderate earthquake struck a mile south of San Bernardino, but was felt throughout Southern California.
Full story

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* 2nd Quake Hits SoCal Hours After 5.1 Temblor (12/7/2008)
* Series Of Temblors Follow 5.1-Magnitude Quake (12/8/2008)

No damages or injuries are reported following a 4.5-magnitude quake that struck San Bernardino County.

The shaking was felt from north of Los Angeles down to the Mexican border.

The quake struck at 7:49 p.m. Thursday, a mile south of San Bernardino.

The U.S. Geological Survey initially reported the quake at magnitude 4.9, then 5.0, then it was downgraded to 4.5.

San Bernardino County Fire Supervisor Tim Franke described it as a "little roll and big jolt, then a sonic boom kind of noise."

USGS seismologist Lucy Jones says the quake struck about 10 miles deep near the San Jacinto fault, which is part of the San Andreas Fault system.

At least half a dozen smaller aftershocks followed including a magnitude-3.3 that rattled the region an hour later.
09-01-2009 11:57 AM
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Southern California Could be Overdue for Major Quake
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Southern California Could be Overdue for Major Quake

Sat, Jan 24, 2009

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Southern California could be overdue for a powerful earthquake along the notorious San Andreas fault line, according to a new study.

New research to be published next week and carried out by scientists at the University of California, Irvine, suggests large quakes have rumbled along the fault roughly every 137 years over the last 700 years. Previously, scientists had thought large earthquakes occurred on the line every 200 years or so.

Scientists studied the Carrizo Plain section of the San Andreas fault, which has not seen a massive earthquake since 1857, when one struck at estimated magnitude of 7.9.

The San Andreas fault runs between two tectonic plates and scientists have long believed it is capable of originating the so-called Big One that many in California fear and that officials have warned of for decades.

"It's been long enough since 1857 that we should be concerned about another great earthquake that ruptures through this part of the fault," said Ken Hudnut, a U.S. Geological Survey geophysicist who was not involved in the study.

One of the study's principal investigators, Lisa Grant Ludwig, has been analyzing soil samples at the Carrizo Plain for about 20 years. Using radiocarbon dating on charcoal deposits and by looking at soil patterns, Ludwig and colleagues found there were four recent big earthquakes before the 1857 temblor, probably occurring around 1310, 1393, 1585 and 1640.

Scientists can't be sure the pattern will hold, Ludwig said.

"But we know it increases the probability of an earthquake," she told the Los Angeles Times. "There's not any way I can look at the data and be comforted by it."

Ludwig's team has collected additional samples and preliminary analysis of these suggests the time between big quakes may be more like once every 100 years.
25-01-2009 09:57 AM
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admiral1
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Alaskans brace for Mt Redoubt Volcano eruption
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Alaskans brace for Redoubt Volcano eruption

Dan Joling/The Associated Press

Originally published Friday, January 30, 2009 at 6:44 a.m.
Updated Friday, January 30, 2009 at 9:39 a.m.
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Becky Jones buys air masks Tuesday, Jan. 27, 2009, at Home Depot in Kenai, Alaska. Stores on the central Kenai Peninsula are selling out of air masks, vehicle air filters and other items residents want on hand in the event nearby Mount Redoubt erupts. Scientists at the Alaska Volcano Observatory say that an eruption is possible. (AP Photo/Peninsula Clarion, M. Scott Moon) **MAGS OUT, NO SALES**

Peninsula Clarion
Rolling fog on Cook Inlet at Kenai, Alaska, partially obscures the 10,197-foot Mount Redoubt volcano at sunset Tuesday, Jan. 27, 2009. Scientists at the Alaska Volcano Observatory say that an eruption is possible.

Peninsula Clarion

ANCHORAGE, Alaska -- Hardware stores and auto parts shops scored a post-holiday run of business this week as Anchorage-area residents stocked up on protective eyewear and masks ahead of a possible eruption of Mount Redoubt.

Monitoring earthquakes underneath the 10,200-foot Redoubt Volcano about 100 miles southwest of Anchorage, scientists from the Alaska Volcano Observatory warned that an eruption was imminent, sending experienced Alaskans shopping for protection against a dusty shower of volcanic ash that could descend on Southcentral Alaska.

"Every time this happens we do get a run on dust masks and goggles," said Phil Robinson, manager of an Alaska Industrial Hardware store in Anchorage. "That's the two main things for eye and respiratory protection."

Customer Ron Cowan picked up gear at the store Thursday before heading off to an auto parts store for a spare air filter.

"I'm older now and I'm being a little more proactive than I was the last time," Cowan said.

When another Alaska volcano, Mount Spurr, blew in 1992, he waited too long.

"The shelves were cleared, so I thought I wouldn't wait until the last minute," Cowan said.

By Friday morning activity at Mount Redoubt had picked up, said the observatory's John Power.

"Starting about 9:30 (Thursday) night, we began seeing higher levels of activity than yesterday," Power said. "We've been seeing long periods of tremors, bursts that have been going on for several hours."

Unlike earthquakes, volcanoes often give off warning signs that usually give people time to prepare.

The observatory, a joint program between the U.S. Geological Survey, the University of Alaska Geophysical Institute and the state Division of Geological and Geophysical Surveys, was formed in response to the 1986 eruption of Mount Augustine.

It has a variety of tools to predict eruptions. As magma moves beneath a volcano before an eruption, it often generates earthquakes, swells the surface of a mountain and increases the gases emitted. The observatory samples gases, measures earthquake activity with seismometers and watches for deformities in the landscape.

On Nov. 5, geologists noted changed emissions and minor melting near the Redoubt summit and raised the threat level from green to yellow. It jumped to orange - the stage just before eruption - on Sunday in response to a sharp increase in earthquake activity below the volcano.

Alaska's volcanoes are not like Hawaii's. "Most of them don't put out the red river of lava," Power said. Instead, they typically explode and shoot ash 30,000 to 50,000 feet high - more than nine miles - into the jet stream.

"It's a very abrasive kind of rock fragment," Power said. "It's not the kind of ash that you find at the base of your wood stove."

The particulate has jagged edges and has been used as an industrial abrasive. "They use this to polish all kinds of metals," he said.

Particulate can injure skin, eyes and breathing passages. The young, the elderly and people with respiratory problems are especially susceptible. Put enough ash under a windshield wiper and it will scratch glass.

It's also potentially deadly for anyone flying in a jet. "Think of flying an airliner into a sandblaster," Power said.

Redoubt blew on Dec. 15, 1989, and sent ash 150 miles away into the path of a KLM jet carrying 231 passengers. Its four engines flamed out.

As the crew tried to restart the engines, "smoke" and a strong odor of sulfur filled the cockpit and cabin, according to a USGS account. The jet dropped more than 2 miles, from 27,900 feet to 13,300 feet, before the crew was able to restart all engines and land the plane safely at Anchorage. The plane required $80 million in repairs.

The observatory's first call after an eruption is now to the Federal Aviation Administration. The observatory's data collection has become far more advanced in 19 years, as has the alert system.

"Pilots are routinely trained to avoid ash and in what to do if they encounter an ash cloud," Power said. "That kind of thing was not routinely done in the 1980s."

The jet stream can carry ash for hundreds of miles. Ash from Kasatochi Volcano in the Aleutians last August blew all the way to Montana and threatened aircraft, Power said.

Particulate is mildly corrosive but can be blocked with masks and filters.

Power advises Alaskans to prepare as they would for a bad snowstorm: Keep flashlights, batteries and several days' worth of food in the house, limit driving and prepare to hunker down if the worst of an ash cloud hits.

Merely going indoors is a defense against ash. The American Red Cross recommends wearing long-sleeved shirts and long pants outside, plus goggles and glasses instead of contact lenses. If no dust mask is available, an effective respiratory filter is a damp cloth over nose and mouth.

But potential danger all depends on the wind. Mount Spurr erupted three times in 1992. When it blew that June, only climbers on Mount McKinley - about 150 miles north of Anchorage - were affected, Power said. An August eruption dumped significant ash on Anchorage and a September blow sent ash about 40 miles north of Anchorage to Wasilla.

Dust mask customer Elizabeth Keating said Thursday that if the volcano erupts, she expects to stay inside. She bought masks for her school-age grandchildren to carry in their backpacks.

"I want to make sure they're carrying these in case they're en route," she said.
30-01-2009 05:21 PM
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January 2009, Earthquake Shakes Channel Islands Off California Coast
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Earthquake Shakes Channel Islands Off California Coast

KTLA News

January 29, 2009

AVALON -- A small earthquake shook the Channel Islands off the California coast Thursday morning, but there were no immediate reports of damages or injuries.

The magnitude-4.2 earthquake shook in the Pacific Ocean at 12:41 a.m. about 40 miles south of Avalon and 60 miles off the coast of San Diego, said seismologist Randy Baldwin of the U.S. Geological Survey.

Several people on Catalina Island reported feeling the quake, according to Los Angeles County sheriff's deputies.

Police in San Diego and Oceanside said they did not receive any reports of people feeling the temblor.

The quake struck closest to San Clemente Island, the uninhabited southernmost of the Channel Islands, which is used for training by the U.S. Navy.
02-02-2009 10:54 AM
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January 22, 2009 News, Earthquake Shakes San Fernando Valley
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Earthquake Shakes San Fernando Valley

KTLA News

January 22, 2009

LOS ANGELES -- A small earthquake has jiggled part of Los Angeles' San Fernando Valley.

The quake occurred at 12:46 p.m. Thursday and was estimated at magnitude-3.1 by the U.S. Geological Survey.

The epicenter was two miles west-northwest of Reseda, or 21 miles northwest of downtown Los Angeles. The depth was just over 11 miles.
02-02-2009 11:11 AM
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January News 2009, Magnitude-3.1 Earthquake Shakes Reseda Area Jan 26, 2009
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Magnitude-3.1 Earthquake Shakes Reseda Area

Updated 1:17 PM PST, Mon, Jan 26, 2009
U.S. Geological Survey

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A magnitude-3.1 earthquake shook the Reseda area Jan. 22, 2009.

A magnitude-3.1 earthquake was reported Thursday afternoon in the Reseda area, according to the USGS.

The earthquake was centered about two miles west-northwest of Resedea. The center was about 21 miles from downtown Los Angeles.

There were not immediate reports of injuries or damage.

The quake was reported at 12:46 p.m.
02-02-2009 11:15 AM
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January News 2009, Earthquake Swarm at Yellowstone
02-02-2009 11:20 AM
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RE: January News 2009, Quake Shakes Coast
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Quake Shakes Coast

Updated 7:06 AM PST, Thu, Jan 29, 2009

Research geophysicist shows members of the media a series of shock waves images
Getty Images/David McNew

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Research geophysicist shows members of the media a series of shock waves images

A small earthquake has shaken the Channel Islands off the California coast.

According to preliminary measurements, the magnitude-4.2 earthquake hit at 12:41 a.m. Thursday, seismologist Randy Baldwin of the U.S. Geological Survey said. The USGS said the quake was centered about 40 miles south of Catalina island and about 60 miles off the coast of San Diego.

Police in San Diego and Oceanside say they have not received calls about the quake.

The USGS Earthquake Information Center has received about 50 reports of people feeling the temblor, but none of them reported any damages, Baldwin said.

"These aren't really damaging magnitudes," Baldwin said.

Avalon has a population of about 3,500 that can swell to more than 10,000 on weekends and in summer, according to the Catalina Island Chamber of Commerce and Visitors Bureau.

The quake struck closest to San Clemente Island, the uninhabited southernmost of the Channel Islands, which is used for training by the U.S. Navy.
02-02-2009 11:31 AM
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RE: Earthquake News
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4.4-Quake Rattles Area Near Bakersfield

KTLA News

January 31, 2009

RANDSBURG -- A small earthquake struck the desert area of Kern County Saturday, it was reported.

A preliminary report from the U.S. Geological Survey said the 4.4-magnitude quake hit at 1:09 p.m. It was centered eight miles from the sparsely populated town of Randsburg.

There were not immediate reports of any injuries or damage.
02-02-2009 11:54 AM
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3.0-magnitude earthquake hits NorCal
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3.0-magnitude earthquake hits NorCal
Wednesday, February 04, 2009 AP

BODIE, Calif. -- There have been no reports of injuries or damage after a small earthquake struck near the Northern California town of Bodie, which is close to the Nevada border.

The U.S. Geological Survey says the preliminary 3.0-magnitude quake struck at 8:53 p.m. Tuesday.

It was centered 11 miles southeast of Bodie, 20 miles northeast of Lee Vining and 146 miles east of Sacramento.

A Mono County Sheriff's Department dispatcher located a few miles from Bodie said she did not feel the earthquake in her office and had not received any reports of injuries or damage.
04-02-2009 05:34 PM
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admiral1
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A 3.1 magnitude quake struck the Chino Hills area at about 6:40 Tuesday morning.
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Mar 10, 2009 7:28 am US/Pacific
3.1 Magnitude Quake Rattles Chino Hills
CHINO HILLS, Calif. (AP) ?
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A 3.1 magnitude quake struck the Chino Hills area at about 6:40 Tuesday morning.

numSlides of totalImages
A small earthquake shook a suburban area east of Los Angeles, but there have been no reports of damage.

The U.S. Geological Survey said the magnitude 3.1 quake struck at about 6:40 Tuesday morning, centered near the town of Chino Hills, about 30 miles east of Los Angeles.

A San Bernardino sheriff's dispatcher said there are no reports of injuries or damage.

A 5.4-magnitude temblor struck the area in July, leaving homes in some nearby communities with fallen bricks, cracked walls and windows, warped door frames and broken water mains and gas lines.
10-03-2009 09:05 AM
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Magnitude-4.8 Quake Rocks SoCal's Imperial County
Mar 24, 2009 8:14 am US/Pacific
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Magnitude-4.8 Quake Rocks SoCal's Imperial County
BOMBAY BEACH, Calif. (AP) ?

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A magnitude-4.8 quake struck Tuesday at 4:55 a.m. in the Imperial County.

A moderate earthquake struck early Tuesday on the edge of the Salton Sea in Southern California's Imperial County, but there were no immediate reports of any injuries or damages.

The magnitude-4.8 quake struck at 4:55 a.m. at a depth of about 3.5 miles. It was centered two miles south of the small town of Bombay Beach on the eastern shore of the Salton Sea, about 90 miles east of San Diego.

The main quake was followed by at least 18 smaller aftershocks.

Tuesday's temblor was the largest in a swarm of earthquakes that have rattled the Salton Sea area since the weekend. More than 40 small quakes, most under magnitude-3, have been detected.

Scientists kept a close watch on the increased earthquake activity because it is near a section of the San Andreas Fault that has not popped loose in over 300 years.
24-03-2009 08:36 AM
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March 24, 2009, Scientists Monitor Swarm of Quakes Near Salton Sea
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Scientists Monitor Swarm of Quakes Near Salton Sea
KTLA News

March 24, 2009

PASADENA -- There has been a swarm of earthquakes in one area of Southern California that scientists in Pasadena are watching closely, with the latest quake hitting this morning.

The magnitude-4.7 struck at 4:55 a.m. near the Salton Sea in Imperial County at a depth of about 3.5 miles, according to seismologist Amy Vaughn of the U.S. Geological Survey.

The quake was centered three miles south of the small town of Bombay Beach and 90 miles east of San Diego.

A magnitude-3.0 quake struck a few minutes later.

There were no immediate reports of any injury or damages.

Several small temblors have shaken the area in recent days.

The activity has sparked the interest of scientists who want to see if small faults crossing under the Salton Sea are transferring energy to a section of the more dangerous San Andreas fault, which has not popped in more than 300 years.

An earthquake that starts in Bombay Beach and ripples northwest along the San Andreas fault could be the Big One that devastates Los Angeles, Graham Kent, a research geophysicist at UC San Diego, told the Los Angeles Times.

The activity is being monitored by a system run the U.S. Geological Survey and Caltech in Pasadena.

In a 48-hour period starting Saturday morning, 42 quakes shook just south of Bombay Beach on the Salton Sea, ranging in magnitude from 0.5 to 3.3.

The last time a swarm of this type occurred in the area was 2001, so scientists say this is not especially unusual.

Caltech seismologist Kate Hutton said scientists do not yet know if quakes this small can trigger anything dangerous on the San Andreas.

Experts have said a magnitude-7.8 earthquake that unzips the southern San Andreas Fault would cause 1,800 deaths and $200 billion in damages.
24-03-2009 08:46 AM
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admiral1
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Earthquake News, Quakes Keep Shaking California's Salton Sea Area
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Quakes Keep Shaking California's Salton Sea Area
BOMBAY BEACH, Calif. (AP) ?

A magnitude 4.8 quake struck Tuesday at 4:55 a.m. in the Imperial County.

* Dozens Of Quakes Rattle Salton Sea Area (3/25/2009)
* Magnitude 4.8 Quake Rocks SoCal's Imperial County (3/24/2009)

California's southeastern desert region is still shaking as dozens of small earthquakes continue to rattle the area near the Salton Sea, following a moderate temblor that struck Tuesday near the San Andreas Fault.
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A magnitude-3.9 quake hit at 8:25 p.m Wednesday.

Since Saturday, scientists have recorded at least 175 quakes near the Salton Sea area, including several that were magnitude-3.0 and larger.

Scientists are keeping close watch on the area's increased earthquake activity because it is near a section of the San Andreas Fault that has not ruptured in more than 300 years.

There have been no reports of damage or injury.
26-03-2009 10:28 AM
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