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Emergency Preparedness - are you ready?


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#201 Victoria Watcher

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Posted 18 May 2023 - 07:51 AM

43 years ago, today.

 

Mt. St. Helens.

 

 

 

 

Mount St. Helens erupted 43 years ago Thursday: Here's how it unfolded

 

 

https://www.foxweath...3rd-anniversary

 

 

 

While the most devastating acts from the eruption of Mt. St. Helens occurred on May 18, 1980, scientists began getting an inkling something was up a little more than two months before the eruption. The USGS released a day-by-day rundown reliving those anxiety-ridden weeks.


Edited by Victoria Watcher, 18 May 2023 - 07:52 AM.


#202 Victoria Watcher

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Posted 08 October 2023 - 10:12 PM

An earthquake measured at magnitude 4.5 was felt in Greater Victoria on Sunday night. People reported their buildings shaking slightly for a few seconds at 7:21 p.m. The U.S. Geological Survey said the earthquake was at a depth of 55.7 km about 65.3 kilometres southeast of Victoria in Washington state, near Marrowstone, at 48.025°N and 122.721°W. There were no immediate reports of damage and none would be expected, Earthquakes Canada said on its website. It said the earthquake was "lightly felt in Victoria." No tsunami warning or advisory was issued. 

 

 

 

https://www.timescol...y-night-7658398


Edited by Victoria Watcher, 08 October 2023 - 10:12 PM.


#203 Mike K.

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Posted 08 October 2023 - 10:28 PM

Downgraded to 4.2.

I didn’t feel it. I was near downtown at the time.

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#204 Victoria Watcher

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Posted 09 December 2023 - 05:23 AM

Active earthquake fault line found in Elk Lake area

 

An international team of academics has mapped the fault line, which could lead to an earthquake big enough to topple downtown buildings
 
 
 
 
 
 
The team identified an earthquake along the fault line between 2,300 and 4,700 years ago, which in a geological time frame is relatively recent, ­Nissen said.
 

“The Earth’s crust is riddled with faults that are hundreds of millions of years old. But you know, most of them don’t ­continue to be active today. But if you see something that has been active just in the last few thousand years, then we call it an active fault,” he said.

 

The earthquake linked to the fault line was of a magnitude between 6.1 and 7.6.

 

If an earthquake of a magnitude in that range were to hit along the fault line today, it would be “very, very damaging,” Nissen said.

 

Some older buildings would likely collapse, including some schools, brick buildings downtown, the legislature and the Royal B.C. Museum.

“We certainly don’t rule out there being fatalities, people sort of buried in rubble,” he said.

 

There could be damage to the Pat Bay Highway, since the fault line crosses the highway, and major transportation issues as a result.

 

 

 

https://www.timescol...ke-area-7948145

 

 

 

an earthquake along the fault line between 2,300 and 4,700 years ago, which in a geological time frame is relatively recent, ­Nissen said.

 

 

It is, but in a human lifetime scale, it's ages ago.  As in at least 115 generations ago.  


Edited by Victoria Watcher, 09 December 2023 - 05:25 AM.


#205 dasmo

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Posted 09 December 2023 - 07:47 AM

File this under “anything can happen.”
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#206 dasmo

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Posted 09 December 2023 - 07:50 AM

“The team identified an earthquake along the fault line between 2,300 and 4,700 years ago, which in a geological time frame is relatively recent, ­Nissen said.”


Prove it…

#207 Victoria Watcher

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Posted 09 December 2023 - 07:51 AM

“The team identified an earthquake along the fault line between 2,300 and 4,700 years ago, which in a geological time frame is relatively recent, ­Nissen said.”


Prove it…

 

I'm skeptical with that timeline, or range, too.



#208 dasmo

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Posted 09 December 2023 - 07:56 AM

I like how the article goes on to describe the impending doom from this “active” fault line that some kids made up.

#209 todd

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Posted 10 December 2023 - 08:09 PM

Greater Victoria housing can’t come at the cost of seismic safety

“..We do know, however, based on occurrence rates of past earthquakes, that there is approximately a 48% chance of structurally damaging shaking in Victoria in the next 100 years (Seeman et al 2011)...”: https://www.oakbayne...-safety-7120843






Good DIY Simpson/Home Depot seismic retrofit guide: https://www.homedepo...s/F-PLANS07.pdf

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This Old House: How to Retrofit a Home for an Earthquake: https://youtu.be/KtZ...TNkWIFXLeCukS7G

Edited by todd, 10 December 2023 - 08:37 PM.

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#210 aastra

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Posted 11 December 2023 - 12:00 PM

 

Some older buildings would likely collapse, including... brick buildings downtown,

 

See, this is one of those situations where subscribing to a very narrow definition of "downtown" could be advantageous.



#211 todd

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Posted 11 December 2023 - 01:43 PM

I would think probably want to hire a “professional” if you’re getting into brick


This happened couple weeks ago in Vancouver:
“..the incident happened as concrete was being pumped into a chimney on the building, which burst, toppled over and pushed over a scaffolding tower, pinning workers underneath…”

“..The church is undergoing seismic upgrade and restoration work…”: https://vancouversun...2f2a6b1bd5/amp/

#212 aastra

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Posted 11 December 2023 - 02:18 PM

 

“..The church is undergoing seismic upgrade and restoration work…”

 

That's Vancouver for you. In Victoria we're much more enlightened and much more sensitive re: architectural heritage. In Victoria we would just tear the old building down.



#213 Victoria Watcher

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Posted 29 February 2024 - 02:32 PM

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#214 Victoria Watcher

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Posted 18 May 2024 - 09:20 PM

KIRO 7 Exclusive: The story behind never-before-seen photos of Mt. St. Helens erupting

 

 

https://www.kiro7.co...RHDLX3RXBK5P3E/



#215 Victoria Watcher

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Posted 04 June 2024 - 10:07 AM

GPGWYVAawAAAg6j.jpg

 

screenshot-x.com-2024.06.04-14_06_49.png

 

 



#216 Victoria Watcher

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Posted 15 June 2024 - 02:28 PM

South Island could be in most quake-prone part of the Pacific coast: study

 

 

A new study has found the section of the Cascadia Subduction Zone that includes the south Island and Washington state could be the most susceptible to a major earthquake
 
Cassidy noted that the ­Cascadia Subduction Zone ­contains a “megathrust fault” that has produced earthquakes up to a magnitude of 9.0 or more — the most recent in January 1700.
 

Information about that ­earthquake comes from ­Indigenous accounts and through written records from Japan, which the resulting ­tsunami reached, he said.

 

Paleoseismology — the ­examination of ancient rocks and sediments — shows there have been 19 such 9.0-plus-­magnitude quakes in the past 10,000 years.

 

Sometimes the gap between large-magnitude quakes is about 250 years, while other times it’s up to 850 years, said Cassidy, noting the last one was 324 years ago.

 

 

https://www.timescol...t-study-9087971


Edited by Victoria Watcher, 15 June 2024 - 02:29 PM.


#217 Nparker

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Posted 15 June 2024 - 02:38 PM

Since there is NOTHING any of us can do to stop an earthquake from happening*, I see little point in being concerned about it.

*at least until a seismic tax is introduced



#218 Matt R.

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Posted 15 June 2024 - 03:01 PM

How about being prepared?
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#219 todd

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Posted 15 June 2024 - 03:21 PM

I love safety because then I can be that much more unsafe.

#220 Nparker

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Posted 15 June 2024 - 03:33 PM

How about being prepared?

No one can prepare for a magnitude 9.0 earthquake.



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