If fracking leads to more frequent earthquakes, then why do some states that've experienced widespread fracking (like Oklahoma) have so many more earthquakes than do certain other states (like Ohio) that've also experienced widespread fracking? The answer might be in the "basement," so to speak. Our guest is Dr. Brett Carpenter, an Assistant Professor of Geology and Geophysics at The University of Oklahoma.

Our guest is the California-based seismologist, Dr. Lucy Jones, whose new book is "The Big Ones." It offers a bracing look at some of the history's greatest natural disasters, world-altering events whose reverberations we continue to feel today. At Pompeii, for example, Dr. Jones explores how a volcanic eruption in the first century AD challenged prevailing views of religion. Later in the book, she examines the California floods of 1862 and how they show that memory itself can change or fade over successive generations.

On this installment of ST, we meet a young Oklahoma filmmaker named Taylor Mullins, who tells us about his new documentary, "Oklahoma Shakedown." As the controversy continues over whether waste-water disposal is playing a role in our state's alarming rise of seismic activity, this film profiles various Oklahoma geologists and residential property owners who have decided to take action to stop these incessant quakes.

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On this edition of StudioTulsa, a discussion with Ziva Branstetter, the Enterprise Editor at the Tulsa World, where she's also the lead reporter for a three-part series of articles called "Quake Debate." The first of these articles appeared yesterday in that newspaper, and the second is in today's World.

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A 4.3 earthquake strikes near Cushing, the second 4.3 magnitude this week in the Cushing area. Those quakes are strong enough to be felt miles away, and are of concern to emergency managers. Jeff Kuhn is Emergency Management Director for Payne County. He says with cooler weather, people are being asked to check chimneys for damage before lighting them up.

There are also a lot of pipelines in the Cushing area, and there is worry they could be damaged by one of these larger quakes. Kuhn says crews check the lines after any quakes large enough to possibly do damage.

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Today, Wednesday the 19th, from noon till 1pm in the Allen Chapman Activity Center on the TU campus, TU's Department of Geosciences (along with the Tulsa Geological Society Foundation) will host the American Association of Petroleum Geologists Distinguished Ethic Lecture. This lecture is free to the public, and it will be delivered by geologist Donald Clarke, who's also our guest on StudioTulsa. Clarke teaches petroleum geology at the University of Southern California and serves as a consulting geologist for several California petroleum companies and cities.

Our guest on ST is Dr. Stephen Marshak, Professor of Geology and Director of the School of Earth, Society, and Environment at the University of Illinois, Urbana-Champaign. As a part of Earth Week, the University of Tulsa's Geosciences Department invited Dr. Marshak for two speaking engagements that occurred here on the TU campus yesterday (the 17th) at noon and 7:30pm. The latter was an address entitled "What's Happening Deep Beneath the Midcontinent?: Tectonics, Earthquakes, and the EarthScope Project in North America's Interior." Dr.

USGS Map of Meeker Quake

MEEKER, Okla. (AP) — The U.S. Geological Survey has recorded a small earthquake near Meeker in Lincoln County.

The U.S.G.S. reports the magnitude 3.0 earthquake was recorded at 10:30 p.m. Friday six miles northeast of Meeker — about 40 miles east of Oklahoma City.

The Lincoln County Sheriff's Office says there have been no reports of damage or injury

WELLSTON, Okla. (AP) — A small earthquake has been recorded in central Oklahoma.

According to the U.S. Geological Survey, a 2.9-magnitude quake occurred about 7:45 a.m. Saturday 8 miles south of Wellston in Lincoln County. The sheriff's office received no reports of injury or damage with the temblor.

A 2.6-magnitude quake was reported April 10th near Wellston.

A Saturday shaker in central Oklahoma

Mar 31, 2012

Three miles down, the earth rumbled just before 6 O'clock Saturday morning.

The US Geological Survey says yet another earthquake shook central Oklahoma early this morning, near Prague. The quake was pegged at 3.3. There are no reports of damage or injury.

There has been a series of earthquakes in the region, including the state's largest ever quake  last November. It registered 5.2.

KWGS News File Photo

TULSA, Okla. (AP) — The National Weather Service office in Tulsa reports receiving several phone calls from residents who mistook a strong clap of thunder for an earthquake.

Meteorologist Pete Snyder says he felt his south Tulsa home shake during the thunder Tuesday morning and that people from across the Tulsa metro area called the weather service to ask if it was an earthquake.

Small earthquake reported in central Oklahoma

Mar 11, 2012
USGS map

PADEN, Okla. (AP) — The United States Geological Survey has recorded a small earthquake in central Oklahoma. The survey reports that the 3.1 magnitude quake was recorded at 4:11 a.m. Saturday about two miles southwest of Paden — about 55 miles east of Oklahoma City.

No injuries or damage were reported.

Geologists say earthquakes of magnitude 2.5 to 3.0 are generally the smallest that are felt by humans.