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Press Release
September 01, 2010
Uniform Tsunami Warning Signal adopted in Oregon
Years of hard work have paid off for tsunami response on the Oregon coast. The Uniform Tsunami Warning
signal is now in place and local communities have up to five years to transition to the new standard signal. Risk to lives will be reduced by applying a uniform siren signal to inform the public of an approaching tsunami on the Oregon coast.

"Due to the recent earthquake events around the world, it has been clear the general public is uncertain how our alerting systems will work," said Althea Rizzo, Oregon Emergency Management Tsunami and Earthquake specialist.

Taking lessons learned from the States Amber Plan and working with local broadcast mediums, a work group, together since 2006, has worked toward the goal of creating a standardized warning system.

Under the direction of Oregon Emergency Management (OEM), a team of specialists has reviewed existing research and best practices on tsunami warning systems and decided on a uniform state signal that provides the necessary consistency to reduce potential conflicts and confusion. The new standard signal is the up-and-down wail that lasts for three minutes.

The siren test time is designed to roughly coincide with the weekly National Oceanic and Atmospheric Administration (NOAA) Weather Radio tests. Tsunami warning sirens will be tested on the first Wednesday of each month at 11:00 a.m.

Based on Oregon Senate Bill 557, Section 2 the uniform tsunami warning signal administrative rules must specify type of signal, duration of signal, volume of signal and location of delivery device.
Contact Info: Jennifer Bailey,
OEM Public Affairs Coordinator
503-378-2911 Ext. 22294