PCA Tsunami

Question 1

What magnitude earthquake is expected to occur in the Pacific Northwest (Cascadia)?

Answer 1

9

Question 2

How many more times powerful will the Cascadia mega earthquake be than California’s most destructive earthquake?

Answer 2

45x

Question 3

What percent chance (probability) due scientists estimate that this Cascadia megaquake will occur within the next 50 years?

Answer 3

37%

Question 4

How prepared is the United States compared to Japan for a megaquake and resulting tsunami?

Answer 4

Nowhere near as prepared as Japan was

Question 5

The community of Seaside was built before our knowledge of plate tectonics.

Answer 5

True

Question 6

What is the problem with evacuation to higher ground for a tsunami in Seaside and many other communities that would be subject to the Cascadia tsunami?

Answer 6

The bridges may fall during the earthquakes cutting off the routes

Question 7

All new structures are built up to earthquake standards.

Answer 7

True

Question 8

Are the vast majority of structures in the Pacific Northwest built to standards for the Cascadia megaquake?

Answer 8

No, most are not

Question 9

All homes are already retrofitted by law to be up to modern worse-case scenario earthquake standards.

Answer 9

False

Question 10

Most homes in the Cascadia megaquake/tsunami region aren’t even bolted to their foundations.

Answer 10

True