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[sounds of tsunami warning sirens outdoors]
[radio announcer] This is a test of the emergency alert system and a special communications
test for tsunami warning messages. This is only a test.
[Rick Wilson, California Geological Survey] So today we're testing the tsunami warning
system to make sure that the messaging not only gets to the local communities, but all
of the people along the coast that may be impacted by tsunamis.
[Kevin Miller, California Emergency Management Agency] ...wants to test and be able to support
to test that last final link of the message reaching the community and citizens on the
coast of California.
[Jim Goltz] This area, the north coast of California, is the most tsunami vulnerable
area of California. This is the area where we have concentrated our efforts.
[sounds of airplane announcement] ...this test to provide feedback to the National Weather
Service...
[Mike Allen, California Civil Air Patrol] This year we've expanded our operation all
the way from the Oregon border of California to Bodga Bay. We're going to be using Cesena 182's
they are up to four passenger single engine high wing aircraft. They have the
ability to fly low and slow, which is perfect for this kind of message broadcasting a warning
for the public along the coastline.
[Rick Wilson] There's a fault off shore it's called the Cascadia Subduction Zone that has
the potential to producing a magnitude 9 earthquake and then uplift the sea floor with very large,
one of these big events, and then create a very large tsunami that can come on shore
with 20 to 30 minutes.
[Jim Goltz] We educate people in this area that if they feel long sustained shaking from
an earthquake, of 30 seconds or longer, they should move to higher ground and not wait
for a formal, official warning. The earthquake itself may very well be the tsunami warning.