The Latest: Agency investigating errant tsunami message
{{#rendered}} {{/rendered}}The Latest on an mistaken tsunami test message sent on Alaska's emergency alert system (all times local):
11:15 a.m.
The National Weather Service says a "truncated version" of a tsunami test message was erroneously broadcast as a warning on Alaska's emergency alert system.
{{#rendered}} {{/rendered}}The agency in a statement says it is investigating why the message was sent and will provide more information later.
The National Tsunami Warning Center is a part of the National Weather Service and says it issued a routine tsunami test message Friday morning that was misinterpreted by at least one unspecified entity as an official tsunami warning.
The center says there was no tsunami threat.
{{#rendered}} {{/rendered}}Alaska's emergency management agency says tsunami-vulnerable communities were notified by the state emergency operations center that there was no threat.
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9 a.m.
{{#rendered}} {{/rendered}}Some Alaskans got a jolt when they heard an emergency radio and television broadcast indicating the entire U.S. West Coast from San Diego to Alaska's Aleutian Islands was under a tsunami threat. Only at the end of the message sent early Friday morning did it indicate the alert was a test.
The National Tsunami Warning Center says there was no tsunami threat.
The tsunami center says it issued a routine test message at 7 a.m. the same way all tests are sent. Typically, the message says it's a test at the beginning.
{{#rendered}} {{/rendered}}It's not clear why the version heard by Alaskans did not say it was a test until the end of the message.
The warning center told KTVA warning sirens may be going off in coastal areas.