M 7.9 in United States on 23 Jan 2018 09:31 UTC

2018-01-23 09:46 message from NTWC

Key information extracted from original GTS message :
Evaluation

  • Based on all available data a TSUNAMI MAY have been generated by this earthquake that could be destructive on coastal areas even far from the epicenter
  • An investigation is underway to determine if there is a TSUNAMI threat to hawaii
  • If TSUNAMI waves impact HAWAII the estimated earliest arrival of the first TSUNAMI wave is 0426 am hst tue 23 JAN 2018 further messages will be issued hourly or sooner as conditions warrant until the threat to HAWAII has passed