• After witnessing the continued decrease of involvement in the SpotterNetwork staff in serving SN members with troubleshooting issues recently, I have unilaterally decided to terminate the relationship between SpotterNetwork's support and Stormtrack. I have witnessed multiple users unable to receive support weeks after initiating help threads on the forum. I find this lack of response from SpotterNetwork officials disappointing and a failure to hold up their end of the agreement that was made years ago, before I took over management of this site. In my opinion, having Stormtrack users sit and wait for so long to receive help on SpotterNetwork issues on the Stormtrack forums reflects poorly not only on SpotterNetwork, but on Stormtrack and (by association) me as well. Since the issue has not been satisfactorily addressed, I no longer wish for the Stormtrack forum to be associated with SpotterNetwork.

    I apologize to those who continue to have issues with the service and continue to see their issues left unaddressed. Please understand that the connection between ST and SN was put in place long before I had any say over it. But now that I am the "captain of this ship," it is within my right (nay, duty) to make adjustments as I see necessary. Ending this relationship is such an adjustment.

    For those who continue to need help, I recommend navigating a web browswer to SpotterNetwork's About page, and seeking the individuals listed on that page for all further inquiries about SpotterNetwork.

    From this moment forward, the SpotterNetwork sub-forum has been hidden/deleted and there will be no assurance that any SpotterNetwork issues brought up in any of Stormtrack's other sub-forums will be addressed. Do not rely on Stormtrack for help with SpotterNetwork issues.

    Sincerely, Jeff D.

USGS: Oklahoma earthquake damage risk increased in 2018

Joined
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This was released in late April, but it may have been overlooked due to the ongoing severe weather season. Oklahoma's earthquake risk was increased this year by the USGS to a 10% to 14% change of at least minor structural damage from ground shaking.

Notice that this map places Oklahoma's risk greater than California's, though a distinction needs to be made. California's year-to-year risk is lower because most of their events occur in very large, destructive earthquakes decades apart. California goes a long time in between damaging quakes, but when they happen, they tend to be large (magnitude 6 or greater). Oklahoma, on the other hand, is seeing multiple small but damaging (or potentially damaging) earthquakes each year. Oklahoma is unlikely to see a large earthquake of the sizes that California experiences, as there are no known faults that are long/tall enough to support one (magnitude is related to the total surface area of fault surface that ruptures).

To attempt to draw an analogy in tornado terms, it would be as if California tends to see the EF4 or EF5 equivalent of earthquakes (magnitude 7+) every 20-30 years while Oklahoma would see multiple EF1-EF2s (mostly less than magnitude 6) every year. Right now, Oklahoma is seeing more magnitude 4-5 quakes than California is.

eq2018.jpg

https://earthquake.usgs.gov/hazards/induced/

http://www.rms.com/blog/2018/04/18/...-induced-seismicity-hazard-and-risk-for-2018/
 
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In my geology studies we are finding that the seismic activity in OK is likely due to waste water injections into the ground which is lubricating an inter plate fault line that extends all the way into Northern Nebraska.
 
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