Discussion:
Lessons For Seattle To Learn From Anchorage Earthquake...
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Walt In Seattlle
2018-12-02 01:53:44 UTC
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{1} Be prepared to survive alone for a long time.
{2} Expect EXTENSIVE road/bridge damage/failure.
{3} Tough, modern building codes can save lives.
{4} Stay calm and act rationally going forward.
{5} Expect you may be cut off from family.
{6} Instruct what to do in your absence.
{7} Assume the worst can happen to you/property.

As to 1: have a recently updated and properly stocked survival kit for home and vehicle. Have a reasonable plan for survival along with how it will be implemented. This plan should include scenarios for various levels of damage to you, property/home or individuals. Decide who is in charge of what or whom and what happens in the absence of head(s) of household. Before a quake occurs, prepare your home and secure furniture as well as belongings so they're less likely to become lethal moving objects. Be prepared to survive for two weeks or more on your own after an extremely devastating earthquake.

Regarding item 2: Attempting to drive somewhere after a very powerful earthquake may be a big mistake! If it's safe to stay where you are, stay!

So far as I know, no one died in yesterday's Anchorage earthquake. Given the quake's magnitude, Anchorage stands as a best-case scenario for a quake of its strength. The Anchorage quake also illustrates the advantages of a community willing to function cohesively and coherently to help the injured or displaced.

Alaskans understand the threat posed by earthquakes. They take the threats posed seriously. They prepare, train and make plans. They've seen what can happen. They feel quakes which, for them, are a common event. So, unlike some of us, they don't dismiss or put aside thoughts of that which they rarely feel.

Consider the consequences of a strong quake preceding extended cold, wet weather. Many people will immediately need warm, dry shelter for quite a while. Repair and construction in that scenario will be difficult or impossible. Hopefully, Seattle has a plan for this scenario.

After a BIG quake, a LOT of infrastructure will be heavily damaged or simply gone. Maintaining basic sanitation will be problematic, at best. Distributing natural gas and water may not be possible for a long time because distribution infrastructure will be so compromised or destroyed. Re-establishing electrical service won't be easy and shall consume time as well as a huge amount of resources, including people to make it happen. So the task of recovery will be daunting....

Anchorage recovered from its 1964 magnitude 9.2 earthquake. How well will Seattle do after a 9.2 subduction zone quake followed up by a tsunami?

How could the local economy recover from the devastation of a BIG quake? These questions are in need of answers.
Walt In Seattlle
2018-12-04 05:24:12 UTC
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So we've known for a day or two that SPU has a study in hand, only a small portion of which they've released, that addresses what will happen to SPU's water distribution system in the event of a quake having the impact anywhere between the Christchurch, New Zealand quake and the megaquake that struck Japan in 2011. The study indicates that earthquakes in this range would bring water pressure to nothing in Seattle in less than 24 hours of the quake. It would take around 2 months to restore some measure of service. Yet, to restore water distribution capacity to what existed before the quake could take *YEARS*! This should be VERY sobering information...

https://www.seattlepi.com/local/environment/article/Seattle-Public-Utilities-Seattle-earthquake-study-13438173.php
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