Ketron Island is sparsely populated with minimal first responders. They are reportedly dispatching a ferry loaded with first responders to take them to Ketron Island to address a resultant fire from the crash and do an investigation.
Culprit is reported to be an Alaska Air employee - who told ATC that he didn't know until today that he had a 'screw loose'.
SeaTac reportedly shut down until at least 11pm PDT (one hour from now)