Oklahoma To Get New Earthquake Hazard Maps

Oklahoma is getting a new set of maps.

The U.S. Geological Survey announced they will be releasing new earthquake hazard maps for Oklahoma after collections of data from a swarm of quakes the last few years.

Oklahoma in the last year has received more quakes of 3.0 or greater than California.  The number of quakes in the state has been 300 times higher in the last six years compared to previous decades.

The news of the maps comes on the heels of another report from the USGS that Oklahoma is likely to see a major quake from reawakened fault lines.

“By identifying the faults, we are providing some guidance about where major earthquakes can happen,” Dan McNamara, USGS research geophysicist and lead author of the paper, said in a news release.

McNamara says that current maps are underestimating the earthquake hazard for not just Oklahoma but bordering states as well.

Volcano Monitors Proposed For Mount Hood

It may be “sleeping”, but scientists say the volcano within Mount Hood in Oregon is a giant that’s just waiting to wake up.

Scientists with the U.S. Geological Survey want to place four volcano monitoring stations on the mountain.  The stations would be unmanned, take only 105 square feet of space and be painted in a way to blend in with the surrounding environment.

“Seismic, GPS and volcanic gas data collected from the stations would be used as the basis for public communications and early warnings, to ensure the safety of adjacent communities as well as recreationists using the Wilderness and Forest,” Mt. Hood National Forest said in a statement.

Mount Hood was placed on a list of very high threat volcanoes on the 2005 National Volcanic Early Warning Systems list.

The volcano is considered active although it has not erupted.  There are frequent earthquakes and it releases steam and volcanic gases near the summit.

Dormant Oklahoma Fault Lines “Reawakened”

A new report says that long dormant Oklahoma fault lines are being reactivated and could lead to a massive earthquake.

The study, which includes researchers from the U.S. Geological Survey, says Oklahoma now must be considered possible for “a high degree of potential earthquake hazards.”

‘The majority of the recent earthquakes in central Oklahoma define reactivated ancient faults at shallow depths in the crust’ of less than 3.7 miles (6 km), said the report for the American Geophysical Union.

The study did not involve any research regarding fracking and if it had any impact on the reawakening of the fault lines.

‘Any one of these fault zones that are producing magnitude 3 or 4 earthquakes could rupture into a larger earthquake. There are as many as 12 different fault zones that are capable of producing a large, 5 to 6 magnitude earthquake,’ Daniel McNamara of the USGS stated.

Building codes in Oklahoma are not strong enough for a high earthquake.  A major quake would result in mass destruction.

Risk of 8.0 Earthquake in California Rises

The U.S. Geological Survey has released a new estimate saying that the chance of an 8.0 magnitude or greater earthquake striking California is 7%, up from 4.7%.

The USGS said the increase in the percentage is due to new understanding that quakes aren’t always limited to separate faults.  A quake could start on one fault and jump to another causing a simultaneous mega-quake.

“The new likelihoods are due to the inclusion of possible multi-fault ruptures, where earthquakes are no longer confined to separate, individual faults, but can occasionally rupture multiple faults simultaneously,” USGS seismologist Ned Field, the lead author of the report, told the L.A. Times.

“This is a significant advancement in terms of representing a broader range of earthquakes throughout California’s complex fault system.”

Data for the report included the April 4, 2010 quake that triggered aftershocks in at least six different fault lines. The report also found quakes jumping over a gap in the fault of over seven miles, more than double the previously observed three miles.

“As the inventory of California faults has grown over the years, it has become increasingly apparent that we are not dealing with a few well-separate faults, but with a vast interconnected fault system,” the report said. “In fact, it has become difficult to identify where some faults end and others begin, implying many more opportunities for multifault ruptures.”

Guthrie Oklahoma Hit With 4.0 Earthquake

Residents of Guthrie Oklahoma were shaken up Sunday when a 4.0 magnitude earthquake struck around 10:25 p.m. local time.

The quake was centered around 3 miles south southwest of Guthrie, 25 miles north of Oklahoma City.

The U.S. Geological Survey says that the quake was the eleventh to his the state on Sunday.

The quake comes on the heels of a report in Geophysical Reseach Letters that says Oklahoma could see more frequent and stronger earthquakes.

The study, which is headed by a geophysicist with the U.S. Geological Survery, says that it’s possible magnitude 6 quakes could strike the state.  The report shows 3,639 earthquakes in Oklahoma between late 2009 and 2014, an increase of 300 times previous decades.

Most struck around 3 miles underground along the Nemaha and Wilzetta fault zones.

Earthquake Swarm Strikes Northern Oklahoma

The US Geological Survey is reporting a cluster of earthquakes in northern Oklahoma.

The USGS said four earthquakes were recorded around Cherokee and Helena, Oklahoma since late Wednesday.  The biggest was a 4.3 magnitude quake centered five miles away from Cherokee at 9:08 a.m. Thursday.

The courthouse in Cherokee reportedly suffered damage as a result of the 4.3 quake.

Amanda Kutz, office manager for the Alfalfa County Sheriff’s Department, said that no one was injured but that plaster is coming off interior walls and that their third floor’s ceiling was damaged.

The USGS says three other quakes between 2.9 and 3.8 have been recorded since Wednesday.

Humboldt County California Suffers Severe Quake

The U.S. Geological Survey reports that Humboldt County California was struck by a 5.7 magnitude earthquake Wednesday afternoon.

The quake’s epicenter was underwater about 40 miles southwest of Eureka.

Lt. Wayne Hanson of the Humboldt County Sheriff’s Office told NBC that no major damage or injuries were reported but that the shaking was significant.  The USGS “Did You Feel It” website had multiple reports from coastal areas of Level VI shaking, designed as “strong”.

Ironically, the quake struck as a “room full of Public Safety Officials” were meeting at the California Office of Emergency Services.

The USGS reported measurements from the quake over 200 miles to the north, east and south.

Oklahoma Towns Get Back To Back Earthquakes

Oklahoma is being shaken with a series of earthquakes including two towns that had significant quakes in back to back days.

Medford, OK received the stronger of the quakes.  The U.S. Geological Survey says that a 4.2 magnitude quake struck 13 miles southeast of Medford on Tuesday around 10 a.m.  The same area received a 4.3 magnitude earthquake on Monday.

The quakes coincide with two quakes in the town of Perry.  According to the Oklahoma Geological Survey, a 2.5 magnitude quake hit Perry on Monday followed by a 4.0 magnitude quake around dawn Tuesday morning.  (The USGS recorded the quake at 3.8 magnitude.)

An earthquake was also recorded in Helena, OK, at 3.0 magnitude, while a 3.3 magnitude quake was registered near Guthrie.

A positive impact from the quake was that it shook Pleasant Vale Elementary School in Enid, Oklahoma where the students were studying plate tectonics and earthquakes.

Connecticut Rocked by Earthquake

The fans of the New England Patriots celebrating their team’s hosting of the AFC Championship Game this weekend weren’t the only thing causing the ground to shake in New England.

The U.S. Geological Survey reports that a series of five earthquakes rocked eastern Connecticut area on Monday.  The strongest quake, magnitude 3.1, was felt in parts of Rhode Island and Massachusetts.

The USGS says that four of the quakes struck in a 20 minute span starting around 6:30 a.m. Eastern Time.

John Ebel, senior research scientists at the Western Observatory told WCVB-TV the quakes are not as unusual as you would think for that area.  He stated there is a tectonic plate from the West Coast to the middle of the Atlantic Ocean.

He said the quakes are caused by pressure being rleleased from those two boundaries.

Idaho and California Hit With Quakes

Weekend earthquakes shook California and caused rock slides in Idaho.

Two back-to-back quakes struck southern California Saturday night with the strongest a magnitude 4.2 according to the U.S. Geological Survey.  That quake was centered around 8 miles north of Castaic, California.

“All of the sudden it was two big rattles and little rumbles afterwards,” Castaic resident Jessica Shickle told NBC Los Angeles. “It was like the Lord literally just took our house and just kind of gave it a couple shakes, and that was it and it went away.”

USGS seismologist Dr. Lucy Jones told NBC the quake was basically small.

“This really is a very small earthquake,” Dr. Jones said. “It’s a size that’s relatively common in Southern California. I did a check and there were eight earthquakes 4.2 and larger in 2014.”

On Sunday, a 4.9 magnitude quake rocked Challis, Idaho and surrounding areas.  The quake was followed by aftershocks of 4.0 and 3.6 a few hours later.

The 4.9 quake caused rock slides that blocked roadways but officials say there were no serious injuries.