BEN FERRAIUOLO
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Seismo-Blog

M3.6 in Oregon, M4.2 off Oregon Coast, M3.0 in England

5/19/2019

4 Comments

 
PictureETS from 5/16 through 5/18/2019
Although seismic activity is relatively low right now across the globe, there have been some interesting events the past day or so. Also, ETS (episodic tremor and slip) has been ongoing for a while now along the Oregon Coast. Well, just to the east of the coast. I will show some plots to these events. If you haven't already, please click the title of this post or "read more" to continue...

Oregon Earthquakes

Picture
Above is a map showing the locations of the 2 earthquakes that recently struck Oregon. If you wish to see the location of any seismic station used in this entire blog post, then please CLICK HERE.
M4.2 off Oregon Coast
Picture
USGS event page
On May 18, 2019 (Happy Mt. St. Helens day!) at 20:43UTC a M4.2 earthquake struck off the coast of Oregon along the Blanco Fracture Zone. Surprisingly, although the earthquake struck far off the coast, 4 people reported to USGS that they felt this event. Very intriguing! I wonder how 4 people felt it? It supposedly struck at 10km in depth but I believe it could have been deeper seeing that people did feel this event far from the epicenter. Below are the 3 plots from the closest seismic station.
Picture
M3.6 strikes Oregon - ENE of Lincoln City
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USGS event page
On May 19, 2019 at 16:23UTC (9:23am PST, same date) a strong M3.6 earthquake rocked NW Oregon. It struck at 42.4km in depth and was reportedly felt by 36 people, even some feeling the event in Portland! The reason people felt this small of an earthquake that far away is due to the strength and depth of the event. Let's say a M7 struck at 10km in depth. Now let's say a M7 struck at 100km in depth. The deeper M7 would be felt much further from the epicenter than the shallower event. Below are the plots of this M3.6 from one of the closest seismic stations.
Picture
Now it is very interesting to note that this earthquake struck not far from the ongoing tremor and slip that is occurring in Western Oregon. You can see this in the image on the right, the M3.6 is marked for you.

Could this earthquake have been caused by the ongoing tectonic slip that is occurring? I believe it is possible. However the depth seems to be a little too deep, however I am not a professional so the connection to the ETS may still remain. The image on the right is of reported tectonic tremor from 5/16 through 5/18/2019.

ETS, episodic tremor and slip, is caused by tectonic slip along the Cascadia Subduction Zone. Tremor is likely caused by lubrication of the Juan De Fuca plate and North American plate "grinding" against one another. I personally believe that if we did not have this high of plate lubrication that we would see many M6 and M7 events (at a far greater rate than is currently witnessed). Thank God for plate lubrication!
Picture
Now the ETS episode lately has been interesting. It first started a month or so ago under the Olympic Peninsula in WA. However it calmed and then another ETS episode broke out, this time along the western coast of Oregon. ETS has been acting very odd lately, something even PNSN agrees with. We are obviously seeing another ETS episode, but it is kind of early. However geological phenomena, such as ETS, does not hold an exact schedule 100% of the time, even if it has in the past. I believe this is the start of the Summer 2019 ETS episode. Once again, it started in a way that has people puzzled. Why has ETS been acting so erratic lately? And why is the ETS episode starting early? Only time will tell. I suggest you CLICK HERE to keep an eye on PNSN updates about the ongoing tremor and slip.

Below are two images of seismogram, spectrogram, and spectra plots for one of the tectonic tremor events. I took the data from two stations to prove this was not surface noise. As you can see this is a typical low frequency, non-volcanic (tectonic) tremor. Here is what tectonic tremor looks like:
Picture
Picture

M3.0 in the U.K.

Picture
Picture
On May 19, 2019 at 9:51UTC, a M3.0 earthquake struck 7km ESE of Swanage, United Kingdom. The location of the event is shown above, as well as the USGS event page for this earthquake. We see 3 people reported to USGS that they felt this event. Shaking was extremely weak and earthquakes like this do happen from time to time in the U.K. However it is noteworthy whenever one occurs so I thought I would post about it.

Below are the plots from the closest seismic station to this event. Sadly, it seems the seismic instrument does not detect frequencies beyond 10Hz so the spectrogram plot may look a little weird. Keep an eye out for more activity and I will be back soon!
Picture
4 Comments
Rico
5/20/2019 01:56:13 am

Thank you very much for your hard work, Sir ! It is the first time in history of mankind - as far as I know - that such a huge amount of people can prepare for the Apocalypse in a qualified and systematic way - Thanx to people like you and the Truth.
That's the way I wanna Rock'n'Roll :-))

Reply
Ben
5/20/2019 07:57:21 pm

Thank you so much for the kind words! And yes, you are right. I personally do believe the world is approaching something huge. However unlike many of the globalists, I believe it has nothing to do with what we are doing to the planet. It all has to do with what the Bible spoke of. I always tell people never to be afraid. And the best way, at least in my opinion, to not be afraid is to become educated. Hopefully I am helping some people to do that. Thank you again and God bless my friend!

Reply
Mike M link
5/21/2019 11:23:00 am

Hi Ben. Thanks for keeping the information flowing. Tremor events have been interesting for sure. Only my opinion, but when playing them back in the map, they seem to have a diagonal component this time. Last week I looked at USGS map for all quakes in the past 7 days. There were two arcs. One from BC to OR, looping around the Seattle area. Another much larger arc far inland from BC to CA. To me that looks like rotation. The 4.2 off the coast in the driving area for the rotation seems to have relieved some of the strain (tremors dropped). The 3.6 on the locked area of the subduction makes me both curious and cautious. Thanks for what you do. Keep up the good work.

Reply
Ben
5/21/2019 12:32:39 pm

Hey there Mike! Woah that is very interesting. I didn't notice that. However I was thinking the same thing about the M3.6. It occurred at 42.4km in depth supposedly. Isn't that much deeper than the ongoing subduction area? I thought subduction in that area was occurring slightly shallower than that. I am probably wrong though. Any info about that would be cool, I am still learning.

And now we have a M3.4 near Ocean Shores and a M2.5 NW tip of Olympic Peninsula. Earthquakes possibly increasing along the locked zone of the subduction zone along with ETS behaving erratically? I don't like doom and gloom, but I am becoming cautious to the change of events as well. If the cascadia zone is "unlocking" could that pave the way for a mega thrust event? Always have a plan! As always, it is good to see you Mike. Have a good evening!

Reply



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    Ben Ferraiuolo is a fast learner and someone who will always stand for the truth. Visit "About Me" for more!

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  • Home
  • Yellowstone
    • Yellowstone Blog
    • 2008-2009 Yellowstone Lake Dike Intrusion
    • Rapid-Fire Swarms 2014-2018
    • Steamboat Geyser Eruptions >
      • Steamboat Eruptions 2020
      • Steamboat Eruptions 2019
      • Steamboat Eruptions 2018
  • Hawaii
    • Hawaii Blog
    • Hawaii Spasmodic Tremor
    • 2018 Kilauea-LERZ Eruptions
  • How To...
    • ...Retrieve Seismic Data
    • ...read webicorders/helicorders and seismic plots
    • ...Understand Spectrograms
    • ...USE SWARM Software
    • ...use jamaseis program
    • ...use waves program
    • ...understand UTC
    • ...Read/Create GPS Deformation Charts
    • ...use s.w.a.r.m. program (OLD)
  • Seismic Events
    • Event Examples
    • Exotic Events
    • Whale Calls
    • Cascade Volcanoes' Low Frequency Events
  • Seismo-Blog
  • Other Seismic Blogs
    • Quake Swarms
    • United States
    • East Coast, USA
    • World
  • Monthly Volcano Updates
  • Uplift/Subsidence Update
  • Videos/Multimedia
    • Newberry Videos
    • (OLD) 2019 Monthly/Yearly Updates
  • Seismic Software
    • jAmaSeis
    • SWARM
    • WAVES
  • Seismic Network Help
  • Links
  • About Me
  • Contact
  • Test Your Knowledge!
  • Lucas Andrew Ferraiuolo (Pro Pics)
  • Garbage Trucks?!