Tillamook County

Gordon McCraw

Director

Emergency Management

Tillamook County Tsunami Siren Tillamook County Tsunami Siren Activation ProceduresActivation Procedures

• Tsunami following an earthquake with local ground shaking.

• Distant Tsunami

Earthquake WITH ground shakingEarthquake WITH ground shaking

• Likely we will have damage to local infrastructure including power, telephone and roads

• Earthquake is your warning

• May or may not be associated with Cascadia Subduction Zone Quake

Earthquake WITH ground shakingEarthquake WITH ground shaking

• We recommend people do not wait for “official” notification if they live in/near low-lying coastal communities (inundation zone) before moving inland. Cascadia event gives you approx. 20 minutes to get out of tsunami zone!

• If earthquake felt, residents should tune into local radio stations and monitor NOAA All-Hazard Radios, and internet if available.

Distant Earthquake TsunamiDistant Earthquake Tsunami

Recent events gave valuable lessonsRecent events gave valuable lessons

Recent Distant Tsunami Recent Distant Tsunami Lessons LearnedLessons Learned

•Tsunami Warning Center’s times and locations very accurate, size weak.•Extremely distant, non-perpendicular events appear to be minor events on other side of ocean.•Advisories mainly cautioning that beach goers and harbors could be effected

Tsunami WarningsTsunami WarningsNo or little Ground ShakingNo or little Ground Shaking

• Likely a large quake in Alaska.

• Partial Subduction Zone quake

• Maybe large quake in Japan

Distant TsunamiDistant Tsunami Notification Procedures Notification Procedures

• 911 activates Pager Tones for all Fire, EMS, and Incident Command Team personnel

• Broadcast information on above pagers and Fire/Police Radio channels.

• Sirens Activated according to the following schedule.

Siren Activation ScheduleSiren Activation Schedule

• 3 hrs prior

• 2 hrs prior

• 1 hr prior

• 30 min. prior

• 15 min. prior

• 3 minutes in duration each time

Other Notification MethodsOther Notification Methods

• Police and Fire Units

• Radio (Coast105, KTIL) and other radio and TV stations.

• Gordon’s Email distribution list.

• Twitter (www.twitter.com/TillamookCoEM)

• Facebook (through Coast105 and KTIL)

• Phone notification lists

DeactivationDeactivation

• Same Pager Tones used during Activation

• Radio, TV, NOAA Radio

• Scanner, Ham radio

• City, County, Forest and State Patrol Units

Subduction Zone Major QuakeSubduction Zone Major Quake

• Likely NO Sirens

• Severe ground shaking is your warning

• All infrastructure will be effected for weeks/months

• Many structurally damaged homes, slides, deaths and injuries BEFORE the tsunami even hits.

Tillamook County Emergency Tillamook County Emergency ManagementManagement

Gordon McCraw, Director

503-842-3412

gmccraw@co.tillamook.or.us

QUESTIONS?