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Online DEW  
#81 Posted : 13 August 2018 12:44:14(UTC)
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Originally Posted by: doctormog Go to Quoted Post
I see that there have been two separate magnitude 6.4 quakes in N Alaska in the last few hours. No reported casualties or significant damage as far as I know but the quakes are notably strong for the region I think.


The region is having a real shaking. These two are the strongest, but some 60 quakes have been recorded in the area in 24 hrs.


https://watchers.news/2018/08/12/strong-and-shallow-m6-4-earthquake-hits-northern-alaska-60th-earthquake-since-02-14-utc/


 

It was most foule weather ... and so we went into an alehouse - Samuel Pepys
Online doctormog  
#82 Posted : 19 August 2018 16:31:00(UTC)
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I see there has also been a couple more large quakes In Lombok. There has been a very high level of seismic activity in this region for a number of weeks now. Today’s two largest quakes have been reported as 6.4 and 6.9 magnitude.

Online DEW  
#83 Posted : 20 August 2018 06:37:46(UTC)
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Originally Posted by: doctormog Go to Quoted Post


I see there has also been a couple more large quakes In Lombok. There has been a very high level of seismic activity in this region for a number of weeks now. Today’s two largest quakes have been reported as 6.4 and 6.9 magnitude.



A quake of around 5.0 or more every couple of hours, literally


https://www.google.co.uk/search?source=hp&ei=GmB6W520HYnYwAKwpQo&q=lombok+earthquake+2018&oq=lombok+&gs_l=psy-ab.1.2.0i131k1l4j0j0i131k1j0j0i131k1l2j0.2094.12310.0.16735.13.9.3.1.1.0.109.843.6j3.9.0....0...1c.1.64.psy-ab..0.13.916...0i10k1.0.ZvwR5M6YHsA


 

It was most foule weather ... and so we went into an alehouse - Samuel Pepys
Offline Roger Parsons  
#84 Posted : 22 August 2018 19:45:30(UTC)
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Evening all.
I see there was a good quake in NE of South America yesterday - Venezuela and some Caribbean islands. See:
https://earthquake.usgs....age/us1000gez7#executive



R.
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Online DEW  
#85 Posted : 23 August 2018 05:52:18(UTC)
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As if Venezuela didn't have enough to worry about.


 


A week for the V's - Vanuatu also having magnitude 6+ quakes


 

It was most foule weather ... and so we went into an alehouse - Samuel Pepys
Offline Roger Parsons  
#86 Posted : 23 August 2018 06:13:13(UTC)
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Originally Posted by: DEW Go to Quoted Post


As if Venezuela didn't have enough to worry about.


A week for the V's - Vanuatu also having magnitude 6+ quakes



I lived on Ambae in the '70s and the doors in the house often popped open unexpectedly with the quakes! Spooky.


R.

RogerP
West Lindsey district of Lincolnshire
No county (Lincolnshire) has better churches and worse houses. The poorer sort of people wash their clothes with hog's dung, and burn dried cow's dung for want of better fuel; whence comes the Lincolnshire proverb: "Where the hogs shite soap and the cows shite fire".
Curiosities of Great Britain (c.1780)
Offline nsrobins  
#87 Posted : 28 September 2018 10:47:17(UTC)
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Online DEW  
#88 Posted : 30 September 2018 06:16:28(UTC)
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It was most foule weather ... and so we went into an alehouse - Samuel Pepys
Offline Steve  
#89 Posted : 30 September 2018 08:42:40(UTC)
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Originally Posted by: DEW Go to Quoted Post


I have been over that yellow bridge many times. It must have been terrifying to see that collapse !

Online doctormog  
#90 Posted : 30 September 2018 08:59:00(UTC)
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Agreed. Not only must it be terrifying but it also makes you realise how powerless we are against things like tsunamis (and indeed to an extent earthquakes).
Offline Solar Cycles  
#91 Posted : 30 September 2018 10:01:12(UTC)
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Originally Posted by: doctormog Go to Quoted Post
Agreed. Not only must it be terrifying but it also makes you realise how powerless we are against things like tsunamis (and indeed to an extent earthquakes).
Why wasn’t the tsunami warning system not in place for this terrible tragedy?

Offline Gandalf The White  
#92 Posted : 30 September 2018 12:36:08(UTC)
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Originally Posted by: Solar Cycles Go to Quoted Post


Why wasn’t the tsunami warning system not in place for this terrible tragedy?



Keep up. It was in place but the authorities cancelled it after an hour because a tsunami hadn't arrived. Then it did.

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Offline Solar Cycles  
#93 Posted : 30 September 2018 13:51:51(UTC)
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Originally Posted by: Gandalf The White Go to Quoted Post


 


Keep up. It was in place but the authorities cancelled it after an hour because a tsunami hadn't arrived. Then it did.


And that makes it ok then.😏

Offline Gandalf The White  
#94 Posted : 30 September 2018 13:54:05(UTC)
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Originally Posted by: Solar Cycles Go to Quoted Post


And that makes it ok then.😏



Your words not mine.


Play nicely please, if you can.

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Offline Steve  
#95 Posted : 01 October 2018 09:14:30(UTC)
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Originally Posted by: doctormog Go to Quoted Post
Agreed. Not only must it be terrifying but it also makes you realise how powerless we are against things like tsunamis (and indeed to an extent earthquakes).


https://youtu.be/s2Oi4fXxoow


This is an absolute tragedy and shows just how our cosy little lives can be wiped out in seconds.


As Doc says, we are powerless. We may think we rule the world, but we dont.


 


 


 

Offline Solar Cycles  
#96 Posted : 01 October 2018 09:27:43(UTC)
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Originally Posted by: Steve Go to Quoted Post


 


https://youtu.be/s2Oi4fXxoow


This is an absolute tragedy and shows just how our cosy little lives can be wiped out in seconds.


As Doc says, we are powerless. We may think we rule the world, but we dont.


 


 


 


Much like the Boxing Day 2004 tsunami this was quite harrowing to watch. Dreadful scenes and like you say Mother Nature cannot be stopped.

Edited by user 02 October 2018 07:19:28(UTC)  | Reason: Not specified

Offline LeedsLad123  
#97 Posted : 30 November 2018 21:59:03(UTC)
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7.0 magnitude earthquake in Anchorage, Alaska


https://www.bbc.co.uk/news/world-us-canada-46403405

Whitkirk, Leeds - 85m ASL.
Offline Gandalf The White  
#98 Posted : 30 November 2018 23:22:19(UTC)
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Originally Posted by: LeedsLad123 Go to Quoted Post


7.0 magnitude earthquake in Anchorage, Alaska


https://www.bbc.co.uk/news/world-us-canada-46403405



CBS TV piece here:


https://m.youtube.com/watch?v=v9zvwKWYS80


 


Looks like a lot of damage.

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User is suspended until 31/01/2293 12:26:49(UTC) Gray-Wolf  
#99 Posted : 30 November 2018 23:38:04(UTC)
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Originally Posted by: Gandalf The White Go to Quoted Post


 


CBS TV piece here:


https://m.youtube.com/watch?v=v9zvwKWYS80


 


Looks like a lot of damage.



The melt of the permafrost layer will make previously 'solid' structures now less so? Liquefaction of such areas could end up messing with lots of their infrastructure that , in past quakes, survived pretty much unscathed?


Then there are the continental shelf clathrate deposits?


If the Pacificication of West Beaufort is bringing warmer,saltier water in contact with the reserves then they may be less 'stable' than in previous times?

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Offline Gandalf The White  
#100 Posted : 01 December 2018 00:07:51(UTC)
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Originally Posted by: Gray-Wolf Go to Quoted Post


 


The melt of the permafrost layer will make previously 'solid' structures now less so? Liquefaction of such areas could end up messing with lots of their infrastructure that , in past quakes, survived pretty much unscathed?


Then there are the continental shelf clathrate deposits?


If the Pacificication of West Beaufort is bringing warmer,saltier water in contact with the reserves then they may be less 'stable' than in previous times?



I think you’re correct that melting permafrost will change the effects of earthquakes.  But in this case apparently it was the proximity to Anchorage and the shallow location that combined to cause so much damage.  The guy in the TV studio said it just arrived suddenly with a loud crack, rather than the more usual gradual onset.

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