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Index » Regional/Local » Elsewhere » Earthquake Page: Previous  1, 2, 3, 4, 5  Next
Post to this Topic
miamizsun

miamizsun Avatar

Location: (3283.1 Miles SE of RP)
Gender: Male


Posted: Feb 6, 2023 - 5:44am

jeez, this looks bad
red crescent/cross should be on the scene soon



heartbreaking... 
KurtfromLaQuinta

KurtfromLaQuinta Avatar

Location: Really deep in the heart of South California
Gender: Male


Posted: Dec 21, 2022 - 9:13pm

 RPnate1 wrote:

Hey all! Nate, here. Just wanted to let you all know that RP headquarters and the team are all ok. It has been quite the experience. Our office escaped all damage, however my personal house was pretty trashed inside. Lot's of broken stuff and no power for about 16 hours. My kids and I were able to get things cleaned up and we were thankful we were fairly well prepared with generators and other supplies. Alanna, William, and the rest of the team are all ok and faired well. Thanks for the concern and thanks for listening! 

Good news.


miamizsun

miamizsun Avatar

Location: (3283.1 Miles SE of RP)
Gender: Male


Posted: Dec 21, 2022 - 12:51pm

 RPnate1 wrote:

Hey all! Nate, here. Just wanted to let you all know that RP headquarters and the team are all ok. It has been quite the experience. Our office escaped all damage, however my personal house was pretty trashed inside. Lot's of broken stuff and no power for about 16 hours. My kids and I were able to get things cleaned up and we were thankful we were fairly well prepared with generators and other supplies. Alanna, William, and the rest of the team are all ok and faired well. Thanks for the concern and thanks for listening! 





geoff_morphini

geoff_morphini Avatar

Gender: Male


Posted: Dec 21, 2022 - 11:47am

 NoEnzLefttoSplit wrote:

Great video! The similarity to Kaikoura struck me immediately and had me chasing up Kaikoura and triple junction.. and came up with "Triple junction kinematics accounts for the 2016 Kaikoura earthquake from Xuhua Shi et al.   which invokes a separate plate on the accretionary edge of the convergent margin starting from Kaikoura and extending all the way up to Tonga.  How has this been received in the community? Does it have any credence?

Triple junction kinematics accounts for the 2016 Mw 7.8 Kaikoura earthquake rupture complexity





Lots to unpack in this paper. I understand the desire to create a microplate between the volcanic arc and the subduction zone (essentially the forearc and the accretionary wedge) but then we could also invoke the same here in Cascadia land. It is clear, from paleomag and geodetics, that our forearc is moving at a different relative velocity from the backarc (North America) much like what these authors see  in NZ. There are indeed great similarities between the two tectonic systems and they are really complex. NZ's is much more seismically potent as it produces waaaay more significant eqs. than ours.  Thanks for pointing out this paper.
Coaxial

Coaxial Avatar

Location: Comfortably numb in So Texas
Gender: Male


Posted: Dec 21, 2022 - 11:04am

 RPnate1 wrote:
Hey all! Nate, here. Just wanted to let you all know that RP headquarters and the team are all ok. It has been quite the experience. Our office escaped all damage, however my personal house was pretty trashed inside. Lot's of broken stuff and no power for about 16 hours. My kids and I were able to get things cleaned up and we were thankful we were fairly well prepared with generators and other supplies. Alanna, William, and the rest of the team are all ok and faired well. Thanks for the concern and thanks for listening! 
 
Thank you for the update!{#Good-vibes} Happy to see that you all made it through with only minor damage. Cheers.
RPnate1

RPnate1 Avatar

Location: Arrakis


Posted: Dec 21, 2022 - 10:54am

Hey all! Nate, here. Just wanted to let you all know that RP headquarters and the team are all ok. It has been quite the experience. Our office escaped all damage, however my personal house was pretty trashed inside. Lot's of broken stuff and no power for about 16 hours. My kids and I were able to get things cleaned up and we were thankful we were fairly well prepared with generators and other supplies. Alanna, William, and the rest of the team are all ok and faired well. Thanks for the concern and thanks for listening! 
NoEnzLefttoSplit

NoEnzLefttoSplit Avatar

Gender: Male


Posted: Dec 21, 2022 - 1:11am

Great video! The similarity to Kaikoura struck me immediately and had me chasing up Kaikoura and triple junction.. and came up with "Triple junction kinematics accounts for the 2016 Kaikoura earthquake from Xuhua Shi et al.   which invokes a separate plate on the accretionary edge of the convergent margin starting from Kaikoura and extending all the way up to Tonga.  How has this been received in the community? Does it have any credence?

Triple junction kinematics accounts for the 2016 Mw 7.8 Kaikoura earthquake rupture complexity



oldviolin

oldviolin Avatar

Location: esse quam videri
Gender: Male


Posted: Dec 20, 2022 - 9:02pm

 geoff_morphini wrote:
Here's a little information about the Mendocino Triple Junction (MTJ) area that just spawned this earthquake.  One reason we are one of most seismically active areas in US.
 
Fascinating Geoff. I didn't realize that the subduction was moving north like that. Thank you for the rabbit hole...{#Good-vibes}
KurtfromLaQuinta

KurtfromLaQuinta Avatar

Location: Really deep in the heart of South California
Gender: Male


Posted: Dec 20, 2022 - 8:06pm

 ScottFromWyoming wrote:





We've driven across that bridge before.
And yes, that has been almost topped just in the last few years again.

I wonder how the new headquarters of R. Paradise held up? They're just a few miles north of there.
Did I miss an announcement?
Steely_D

Steely_D Avatar

Location: Biscayne Bay
Gender: Male


Posted: Dec 20, 2022 - 6:15pm

2:30 something last night, MyShake yelled at me "EARTHQUAKE EARTHQUAKE EARTHQUAKE" and the little indicator told me it was a 6.3 and I should DROP! COVER! HOLD ON!

but we were 200 miles from the epicenter, so didn't feel a thing. And I'd forgotten I'd installed the app. But, it seems to work.
geoff_morphini

geoff_morphini Avatar

Gender: Male


Posted: Dec 20, 2022 - 3:04pm

Here's a little information about the Mendocino Triple Junction (MTJ) area that just spawned this earthquake.  One reason we are one of most seismically active areas in US.


geoff_morphini

geoff_morphini Avatar

Gender: Male


Posted: Dec 20, 2022 - 3:02pm

 ScottFromWyoming wrote:





Built in 1911 was overtopped in 1964 flood and still stood! Quite the bridge.

ScottFromWyoming

ScottFromWyoming Avatar

Location: Powell
Gender: Male


Posted: Dec 20, 2022 - 12:53pm

 geoff_morphini wrote:


It was a significant event that caused large accelerations in the area of Ferndale (reported 0.9 g - If an acceleration exceeds 1 g that means it is flying). There doesn't seem to be a lot of structural damage except for Fernbridge that crosses  the Eel River and connects Ferndale to the rest of the world. It is an amazing bridge https://en.wikipedia.org/wiki/... so I'm hoping it is a settlement/liquefaction problem with the approaches and not the main span.  A great source of information is https://earthjay.com (he is currently traveling to the area but will have information within the next 24 hours).  It appears to be an earthquake in the oceanic Gorda plate which is subducting beneath North America. It is a common earthquake source. We had a similar event exactly one year prior to this one (just a coincidence).


https://twitter.com/patton_cas... Location and focal mechanism for this event.





geoff_morphini

geoff_morphini Avatar

Gender: Male


Posted: Dec 20, 2022 - 12:35pm

 Steve wrote:

Yikes! Hopefully everyone is okay.

M 6.4 - 15km WSW of Ferndale, CA



It was a significant event that caused large accelerations in the area of Ferndale (reported 0.9 g - If an acceleration exceeds 1 g that means it is flying). There doesn't seem to be a lot of structural damage except for Fernbridge that crosses  the Eel River and connects Ferndale to the rest of the world. It is an amazing bridge https://en.wikipedia.org/wiki/... so I'm hoping it is a settlement/liquefaction problem with the approaches and not the main span.  A great source of information is https://earthjay.com (he is currently traveling to the area but will have information within the next 24 hours).  It appears to be an earthquake in the oceanic Gorda plate which is subducting beneath North America. It is a common earthquake source. We had a similar event exactly one year prior to this one (just a coincidence).


https://twitter.com/patton_cas... Location and focal mechanism for this event.

Steve

Steve Avatar

Location: Around My Corner... and Up Yours
Gender: Male


Posted: Dec 20, 2022 - 8:05am

Yikes! Hopefully everyone is okay.

M 6.4 - 15km WSW of Ferndale, CA
Steely_D

Steely_D Avatar

Location: Biscayne Bay
Gender: Male


Posted: Sep 22, 2022 - 9:40am

 Bill_J wrote:


So you leave the door open to keep it well ventilated, then when the Tsunami is coming you discover that there is a nest of poisonous snakes in there...


“Imagine if you will…”
geoff_morphini

geoff_morphini Avatar

Gender: Male


Posted: Sep 22, 2022 - 9:35am

 NoEnzLefttoSplit wrote:

If I am not mistaken, you could see the transition in wave form there. Geomorph can tell which ones.. I'm guessing the first sloshing was secondary and the final side to side motion was caused by love waves. (yes you read correctly).


Funny I hadn’t seen this thread earlier. It can be really difficult to determine the wave forms traveling through small bodies of water in buildings since there is so much interference (constructive and destructive) happening. Also, the building is an oscillator that is responding to ground motion based on its own peculiar characteristics (how it is attached to the ground, how tall it is, orientation, etc.). So, with all of those caveats, it looks like the video misses the p-wave (makes sense seeing they had time to grab the camera and turn it on), the first part could be an s-wave and the second set could be surface waves (especially when they start rotating). Pretty cool. 
KurtfromLaQuinta

KurtfromLaQuinta Avatar

Location: Really deep in the heart of South California
Gender: Male


Posted: Sep 21, 2022 - 9:26pm

 miamizsun wrote:

taiwan earthquake video


That first clip says it all.
I've been in a few like that.


miamizsun

miamizsun Avatar

Location: (3283.1 Miles SE of RP)
Gender: Male


Posted: Sep 20, 2022 - 12:46pm

taiwan earthquake video


NoEnzLefttoSplit

NoEnzLefttoSplit Avatar

Gender: Male


Posted: Mar 17, 2022 - 9:21pm

 Bill_J wrote:
 Steely_D wrote:

We saw those when visiting somewhere. They looked so depressing, but I guess maybe that’s better than death? Maybe.
So you leave the door open to keep it well ventilated, then when the Tsunami is coming you discover that there is a nest of poisonous snakes in there...
 
{#Lol}
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