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International District:Earthquake Risk
June 2, 2008
Thank You
Carol Dunn
Emergency Services Department
Community Disaster Education
American Red Cross
Goals
• Learn About the Earthquake Risk to Our Area
• Factors that Influence Outcome:– Ground Composition – Building Construction– Decisions and Preparation
The Earth is Like a Lava Lamp
Hot Cold
Faults
Pressure Created Crumples in the CrustThat are Weakness—as pressure builds,The Crumples are the easiest places to Release
Pressure Builds and Creates Faults—Areas in the ground that crumpled and bent
Once crumpled, the creases (faults) are where the ground is most likely to move again when pressure builds up enough.
Here’s where we knowthe earth has crumpledand creased in the Seattle area. There are also faults deep under groundthat we can’t see.
The ground we walk on
• Soil Types– Rock– Rock/Water/etc
• A lot of soil in Seattle is more similar to red dean pudding than rock—and when shaken, can act more like water that stone
Seattle pre-1889
Uninformed Decisions in 1889
Saw Dust Fill
Liquefaction Maps
• The stories and histories that have grown with the International District are the stories of overcoming challenges, finding ways to support each other and creating and building lasting legacies
Hard earned success led to the demand for impressive buildings
Everyone was building bigger, Building stronger
Unfortunately: almost the worst building type for earthquake resistance
大丈夫能屈能伸
For Earthquakes: Buildings are like people—flexible is better
Best: low, wood --Bolted to Foundation
OK: Steel and reinforced concrete:
Bad for Quakes: Soft Structures
Worst for earthquakes
Worst: Un-reinforced brick (recognized by levels of brick ends)
Not very good: reinforced bricks (recognized when all bricks show their sides)
Not very good: Retrofitted masonry (recognized by the added bolts)5 out of 6 were damaged during the 2001 Nisqually Quake
Unreinforced Masonry
Options
• Retrofit– Anchor masonry to wood– Add Framing
• Still will be risks
• Rebuild– Create a new safer building
• Lose character and feeling of history
• Relocate– Currently located in one of the most dangerous
parts of the city• Lose character and history
On line Data Sources
Buildings that received funding for retrofitting in 2001
• Historic Seattle Save the Buildings Fund – Milwaukee and Alps Hotels – Hong Kong Building – Hip Sing Building – The Bing Kung Building– The Bush Hotel
Because of JoltBe Sure to Bolt
• Know what to expect—
• Do not run outside!
Be prepared for disruption
Stay Healthy
1 gallon perperson perday for a min3 days
Best:Non Perishable
No need for heatingLimited water
Stay healthy
BrrrrrrMaintain the rightBody temperature
InformationImportant Documents
Get through debris
Coping
– Be aware that unusual events cause unusual and intense emotions
– Talk about your feelings– Include Comfort Items in
your supplies
Have a back up care plan
Not just for people
The challenges of family care providers are greater than almost any othergroup in our community-We need to help make connections
The ability to communicateis crucial
Calls to another area may work when local calls don’t.Agree on an out of area contact.
Text messaging may work
Talking with her Out of area contact
9-1-1
• 9-1-1 calls from pay phones are free. – May be overwhelmed in a
disaster
• Over 100 Languages:– “Fire,
Mandarin/Cantonese/etc”– “Police,
Mandarin/Cantonese/etc”– Medical,
Mandarin/Cantonese/etc”
• Stay on the line!
211—Language Support
American Red Cross:
206-323-2345
Information
AM 710 AM 1000 TV: 7
In English
Puget Sound Area
Thank You
• For more information contact:• Carol Dunn• The American Red Cross • Community Disaster Education
Department• [email protected] • 206.709.4528• Language Bank: 206-323-2345