Tennessee Weather Forum

Geology => Geology => Topic started by: bugalou on June 26, 2019, 04:12:58 PM

Title: Eastern Tennessee Seismic Zone Activity
Post by: bugalou on June 26, 2019, 04:12:58 PM
Activity for Eastern Tennessee Seismic Zone

(https://i.imgur.com/qSJBVXD.jpg)
Title: Re: Eastern Tennessee Seismic Zone Activity
Post by: Dyersburg Weather on June 26, 2019, 05:02:47 PM
Iíve often wondered how the landscape would change when the big one happens.
Title: Re: Eastern Tennessee Seismic Zone Activity
Post by: Charles L. on June 26, 2019, 06:54:25 PM
Iíve often wondered how the landscape would change when the big one happens.

Georgia would lose more water and hate us even more.
Title: Re: Eastern Tennessee Seismic Zone Activity
Post by: mamMATTus on June 26, 2019, 08:18:51 PM
I wish that I had taken plate tectonics/seismicity and Geology of Tennessee but sadly those were electives only offered once every 2 years and didn't fit into my schedule. Plus I was more into Soils, Geomorphology and Environmental. Still a good decision for my career though.
Title: Re: Eastern Tennessee Seismic Zone Activity
Post by: Liberty4dayz on July 03, 2019, 02:09:25 PM
I was born and raised in the Bootheel of Missouri.  I often wonder when the big one will happen.  Crazy to think about the fact that the strongest earthquake in the lower 48's history was right where I was from


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Title: Re: Eastern Tennessee Seismic Zone Activity
Post by: Greyhound on January 20, 2020, 01:19:15 PM
Just had an earthquake in the Knoxville area.  Felt around Papermill area, as well as Halls and Fountain City.  Pretty good shake!!!  So I'm sure it was felt in other areas as well.

ETA - 3.6 magnitude, approximately 6 miles from LaFollette.
Title: Re: Eastern Tennessee Seismic Zone Activity
Post by: cgauxknox on January 20, 2020, 01:24:14 PM
It apparently didn't make it as far as Cedar Bluff as we didn't feel or hear anything, but it's rare to have anything right here in the city. 


Post Merge: January 20, 2020, 07:33:37 PM
News this evening is updating today's event to a 3.8.
Title: Re: Eastern Tennessee Seismic Zone Activity
Post by: cgauxknox on January 27, 2020, 09:34:25 AM
Local news says South Knoxville had a little magnitude 1.9 this morning.  Didn't feel it west of town but things have been rather active this month.
Title: Re: Eastern Tennessee Seismic Zone Activity
Post by: cgauxknox on August 09, 2020, 08:22:55 AM
I'm seeing social media posts from friends further east in Tennessee that they felt the 5.1 magnitude quake that happened near Sparta, NC this morning. That's a good size shake for this part of the world and it seems it was felt over a broad range.
Title: Re: Eastern Tennessee Seismic Zone Activity
Post by: bugalou on August 09, 2020, 01:48:42 PM
I'm seeing social media posts from friends further east in Tennessee that they felt the 5.1 magnitude quake that happened near Sparta, NC this morning. That's a good size shake for this part of the world and it seems it was felt over a broad range.

Yep, biggest one in a while for that area.  Anyone here feel it?
Title: Re: Eastern Tennessee Seismic Zone Activity
Post by: mamMATTus on August 09, 2020, 02:51:35 PM
Depth on that quake was just 2.3 miles. That's very shallow for a quake. No wonder it was felt so far and wide. Oblique Reverse faulting as well which would explain a lot the damage I've seen. Shear and compression obvious with the way the fracture lines are shown in roads and walls of brick homes. I think people are seeing the number but not really equating it to the amount of damage that has been done. It's actually quite bad. There are homes that will be declared complete losses by insurance.

There really needs to be more focus and funds placed towards the ETSZ. It isn't well studied compared to western tectonics and there are literally hundreds of unknown faults that are undetermined to be active/inactive. Intraplate tectonics are the hardest of all to study because there really isn't much evidence of it. I remember my petrology & structural Professors in college mentioning several times that it is entirely possible that the ETSZ could be moving into a period that is more seismically active.
Title: Re: Eastern Tennessee Seismic Zone Activity
Post by: bugalou on August 09, 2020, 06:01:20 PM
Depth on that quake was just 2.3 miles. That's very shallow for a quake. No wonder it was felt so far and wide. Oblique Reverse faulting as well which would explain a lot the damage I've seen. Shear and compression obvious with the way the fracture lines are shown in roads and walls of brick homes. I think people are seeing the number but not really equating it to the amount of damage that has been done. It's actually quite bad. There are homes that will be declared complete losses by insurance.

There really needs to be more focus and funds placed towards the ETSZ. It isn't well studied compared to western tectonics and there are literally hundreds of unknown faults that are undetermined to be active/inactive. Intraplate tectonics are the hardest of all to study because there really isn't much evidence of it. I remember my petrology & structural Professors in college mentioning several times that it is entirely possible that the ETSZ could be moving into a period that is more seismically active.

Yet another opportunity to remind everyone here that owns a home to get earthquake insurance.  Its only a few hundred bucks more a year and will protect you from this kind of stuff. It doesn't take "the big one" to do severe damage to your home that can cost tens of thousands of dollars to repair properly.
Title: Re: Eastern Tennessee Seismic Zone Activity
Post by: dwagner88 on August 09, 2020, 09:21:00 PM
I was out and about this morning when it happened, but I did not feel anything. I donít ever remember earthquakes being a part of my life growing up here, but Iíve felt 2 here in the last 5 years, one of which woke both me and my wife from a deep sleep. I think that one was late winter 2019.
Title: Re: Eastern Tennessee Seismic Zone Activity
Post by: nrgJeff on November 05, 2020, 10:08:15 AM
My understanding is that earthquake insurance might also protect against slowly developing foundation issues. Ask your insurance agent! No, I'm not one.

Just we got hammered with a $12,000 foundation repair bill back in Texas and that clay soil. Thankfully soil is rocky here. When we planted shrubs we learned why Rocky Top became the song, lol!