The Largest Earthquake Ever Recorded and Its Global Effects

[MULTIZ321]

The Largest Earthquake Ever Recorded and Its Global Effects​

The Largest Earthquake Ever Recorded and Its Global Effects

The earth beneath our feet is alive, constantly shifting and moving. On May 22, 1960, this movement culminated in the most powerful earthquake ever recorded, known as the Great Chilean Earthquake.

weather-fox.com

Richard

 

[TolmiePeak]

A similar earthquake could hit coastal Oregon and Washington. It would be bad for those coastal areas but they are lightly populated reducing the damage.

 

[geist1223]

If the Subduction Zone of the West Coast had a 9+ Earthquake the damage would spread far beyond the Coastal Zone. There are areas in Portland, Seattle, Tacoma, etc that the subsoil would Liquify. Many buildings and bridges throughout Oregon and Washington are not built to with stand the large earthquake. With the loss of bridges, railroads, highways, etc it would be difficult to provide emergency resources to the area. Supplies and equipment would have to be flown in using the few operational airports. Then they would have to be flown around to the damaged areas in Oregon. Look at how mule trains had to be used in areas of the Carolinas last year. When we first started looking at being prepared almost 20 years ago it was recommended that you have 3 to 5 days of supplies (food, water, etc) on hand. Now it is recommended you have enough supplies to last several weeks. Then there is the issue of how your neighbors would react when you have prepared and have supplies on hand and they do not.

 

[Carolinian]

If the Subduction Zone of the West Coast had a 9+ Earthquake the damage would spread far beyond the Coastal Zone. There are areas in Portland, Seattle, Tacoma, etc that the subsoil would Liquify. Many buildings and bridges throughout Oregon and Washington are not built to with stand the large earthquake. With the loss of bridges, railroads, highways, etc it would be difficult to provide emergency resources to the area. Supplies and equipment would have to be flown in using the few operational airports. Then they would have to be flown around to the damaged areas in Oregon. Look at how mule trains had to be used in areas of the Carolinas last year. When we first started looking at being prepared almost 20 years ago it was recommended that you have 3 to 5 days of supplies (food, water, etc) on hand. Now it is recommended you have enough supplies to last several weeks. Then there is the issue of how your neighbors would react when you have prepared and have supplies on hand and they do not.

In eastern North Carolina, we are in an area where we have to be concerned about hurricanes. We are on high ground, well above the flood prone level, and maintain a month's worth of emergency food. We put down out own deep well in case the public water supply is compromised. In Asheville, the public water supply was compromised for months after the hurricane. Our well also saves money for watering the yard and garden and for the swimming pool we plan.

There was one hurricane I remember where our town and section of our county was cut off from all directions as far as road travel for a week after the hurricane. The lights were on and the public water supply was okay, but things like bread and gas could not be delivered.

 

[Greg G]

Then there is the issue of how your neighbors would react when you have prepared and have supplies on hand and they do not.

Ahh, a Twilight Zone episode

 

[VacationForever]

A similar earthquake could hit coastal Oregon and Washington. It would be bad for those coastal areas but they are lightly populated reducing the damage.

The Big One would be devastating.

 

[T_R_Oglodyte]

If the Subduction Zone of the West Coast had a 9+ Earthquake the damage would spread far beyond the Coastal Zone. There are areas in Portland, Seattle, Tacoma, etc that the subsoil would Liquify.

Liquefaction is a huge issue. In many coastal areas, land surfaces have been extended by placing waste materials in coastal fringes to expand dry land. Much of that was done by simply dumping wastes without any compaction or consolidation. Those zones are ripe for liquefaction. Damage from earthquakes, such as the 1904 San Francisco quake and the 1989 Loma Prieta quake show that damage is more strongly correlated with subsurface conditions than with proximity epicenter. When we bought a house in the Bay Area in 1977, one of my criteria was that the house not be in an area subject to liquefaction. We fared nicely during the Loma Prieta even though we didn't have all of the advised quake protections.

More recently we have relocated from the Puget Sound area to North San Diego County. In terms of quake hazard, I gladly swapped the quake risks of the Peninsular ranges for the subduction zone risks of the Pacific Northwest.

 

[TolmiePeak]

The Big One would be devastating.

Seattle is over 100 miles away from the cascadia subduction zone. A rupture on surface fault like the one that runs under downtown can cause far more damage due to its proximity.

 

[easyrider]

Now it is recommended you have enough supplies to last several weeks.

Here's a basic kit idea from ready.gov. You probably are prepared but for those who aren't ............https://www.ready.gov/kit https://providentliving.churchofjesuschrist.org/food-storage?lang=eng

Bill

 

[simpsontruckdriver]

In addition to the Chilean earthquake, the Good Friday Alaskan earthquake hit 61 years ago (03/27/1964). It lasted 4 minutes 38 seconds, and it was estimated to be around 9.2 on the Richter Scale, which means total devastation. Some parts of Alaska were raised several feet, some parts sunk several feet. It also caused a tsunami that hit Japan, Hawaii, much of the west coast of the USA, and as far south as Antarctica. Aftershocks continued for almost a year.

TS

 

[rickandcindy23]

Our granddaughter announced two days ago that she won't go on an Alaskan cruise next year to celebrate her parents' 20th anniversary because of the "ring of fire." She is 10 and knows everything, after all, she IS in the 4th grade. She has yet to learn of the super volcano under Yellowstone NP. She made no mention of it.