DEW
  • DEW
  • Advanced Member
13 August 2018 12:44:14

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.

Originally Posted by: doctormog 


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/


 


War does not determine who is right, only who is left - Bertrand Russell

Chichester 12m asl
doctormog
19 August 2018 16:31:00

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.


DEW
  • DEW
  • Advanced Member
20 August 2018 06:37:46


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.


Originally Posted by: doctormog 


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


 


War does not determine who is right, only who is left - Bertrand Russell

Chichester 12m asl
Roger Parsons
22 August 2018 19:45:30
Evening all.
I see there was a good quake in NE of South America yesterday - Venezuela and some Caribbean islands. See:
https://earthquake.usgs.gov/earthquakes/eventpage/us1000gez7#executive 



R.
RogerP
West Lindsey district of Lincolnshire
Everything taken together, here in Lincolnshire are more good things than man could have had the conscience to ask.
William Cobbett, in his Rural Rides - c.1830
DEW
  • DEW
  • Advanced Member
23 August 2018 05:52:18

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


 


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


 


War does not determine who is right, only who is left - Bertrand Russell

Chichester 12m asl
Roger Parsons
23 August 2018 06:13:13


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


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


Originally Posted by: DEW 


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
Everything taken together, here in Lincolnshire are more good things than man could have had the conscience to ask.
William Cobbett, in his Rural Rides - c.1830
nsrobins
28 September 2018 10:47:17
DEW
  • DEW
  • Advanced Member
30 September 2018 06:16:28

Collection of mobile phone videos here


https://watchers.news/2018/09/28/major-tsunami-hits-indonesia-after-shallow-m7-5-earthquake/


 


War does not determine who is right, only who is left - Bertrand Russell

Chichester 12m asl
Steve
30 September 2018 08:42:40


Collection of mobile phone videos here


https://watchers.news/2018/09/28/major-tsunami-hits-indonesia-after-shallow-m7-5-earthquake/


 


Originally Posted by: DEW 


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

doctormog
30 September 2018 08:59:00
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).
Solar Cycles
30 September 2018 10:01:12

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).

Originally Posted by: doctormog 

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

Gandalf The White
30 September 2018 12:36:08


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


Originally Posted by: Solar Cycles 


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


Location: South Cambridgeshire
130 metres ASL
52.0N 0.1E


Solar Cycles
30 September 2018 13:51:51


 


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


Originally Posted by: Gandalf The White 

And that makes it ok then.😏

Gandalf The White
30 September 2018 13:54:05


And that makes it ok then.😏


Originally Posted by: Solar Cycles 


Your words not mine.


Play nicely please, if you can.


Location: South Cambridgeshire
130 metres ASL
52.0N 0.1E


Steve
01 October 2018 09:14:30

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).

Originally Posted by: doctormog 


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.


 


 


 

Solar Cycles
01 October 2018 09:27:43


 


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.


 


 


 


Originally Posted by: Steve 

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

LeedsLad123
30 November 2018 21:59:03

7.0 magnitude earthquake in Anchorage, Alaska


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


Whitkirk, Leeds - 85m ASL.
Gandalf The White
30 November 2018 23:22:19


7.0 magnitude earthquake in Anchorage, Alaska


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


Originally Posted by: LeedsLad123 


CBS TV piece here:


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


 


Looks like a lot of damage.


Location: South Cambridgeshire
130 metres ASL
52.0N 0.1E


Gray-Wolf
30 November 2018 23:38:04


 


CBS TV piece here:


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


 


Looks like a lot of damage.


Originally Posted by: Gandalf The White 


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?


Koyaanisqatsi
ko.yaa.nis.katsi (from the Hopi language), n. 1. crazy life. 2. life in turmoil. 3. life disintegrating. 4. life out of balance. 5. a state of life that calls for another way of living.
VIRESCIT VULNERE VIRTUS
Gandalf The White
01 December 2018 00:07:51


 


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?


Originally Posted by: Gray-Wolf 


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.


Location: South Cambridgeshire
130 metres ASL
52.0N 0.1E


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