Earthquakes, Induced – Prediction is Weak, but There is Hope From the Animals
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- By Professor Victoria Sutton
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Guest Opinion. Even without scientific tracking data, the folk who live in Oklahoma will tell you that earthquakes have greatly increased over the past several years. Why? Can the U.S. Geological Surveyu (USGS) predict these earthquakes?
The earth is covered with about 15 tectonic plates that slide around on the surface. (Some liken the earth’s mantle to the skin of an orange in proportion and comparative density.) These fault lines are typically where earthquakes occur as a result of sudden movements of these plates. This can explain a lot of earthquakes that occur along the fault lines all along the west coast of the Americas.
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However, there are earthquakes that occur as secondary seismic events to other earthquakes or they are “induced”, or as I called it “inspired”. Such induced or inspired earthquakes have been tracked by the USGS (the agency with the lead for earthquake research), and there is a definite uptick in earthquakes in Oklahoma.
Fracking
The first question you probably want to ask is whether this uptick in earthquakes is due to the relatively recent use of fracturing rock to elicit more oil that was otherwise unrecoverable. It would be reasonable to assume that cracking rock 3-4 km below the surface might cause seismic waves that induce an earthquake.
USGS has concluded that the problem is not fracking, but the deep disposal of wastewater from oil and gas drilling. The deep injection of wastewater that is deposited below the water tables to avoid water contamination, makes up about 90% of the underground injection compared to 10% from fracking.
These underground injection wells are heavily regulated.
However, USGS found that the largest earthquake induced by fracking in Oklahoma was a 3.6 rated earthquake in 2019. Up until this week, the largest known earthquake in Texas was a 4.0 rated earthquake in 2019. This week, Texas had a 4.8 and a 4.9 earthquake right in the heart of the Permian Basin, so it is yet to be determined whether it was caused by the recent initiation of fracking activity or waste water injection from ongoing oil and gas operations.
Damage to private property
Although the oil and gas companies may own the mineral rights they are limited to not damaging the surface rights of the surface rights owner. Almost all mineral rights have been sold to someone other than the surface owner in Texas, so this is a well developed area of the law.
Those of you who are lawyers may think back to Pennsylvania Coal Co. v. Mahon, 260 U.S. 393 (1922), a case where a coal company in Pennsylvania sold the surface rights to land owners for homes, with a waiver of their right to claim any damages from the coal mining, and at a lower price. When the surfaces started to collapse and the homes with them, the state legislature intervened with a law that prohibited the damage to the surface. However, Justice Oliver Wendell Holmes of the U.S. Supreme Court, found that the legislation was a constitutional taking and the coal company was owed just compensation. The fact they had sold the surface rights at a lower cost with the disclaimer for any damage, meant that the homeowners were not entitled to more than they bought, thus they had to live with the consequential loss of their homes. Unless the surface rights to homes were sold with a disclaimer for fracking or underground injection damages, then the oil and gas companies would be liable for damages to surface rights of homes.
USGS has the lead on the detection of earthquakes but they readily admit they cannot predict them in advance of their occurrence.
The USGS has said that
Neither the USGS [United States Geological Survey] nor any other scientists have ever predicted a major earthquake. We do not know how, and we do not expect to know how any time in the foreseeable future.
With the 300% increase in earthquakes in Oklahoma it would be prudent to find some ways to predict their occurrence.
Further, earthquakes are becoming deadlier, in part because of the increase in density of housing and population. The response to earthquakes is fairly recent (50-60 years), when the United Nations General Assembly passed Resolution 2034 in 1965 to assist victims of nations with earthquake damages.
Traditional Ecological Knowledge
Being aware of clues from the environment has become one of the most promising areas of research for predicting earthquakes. The “seismic sense” of animals can predict an earthquake…
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