Well, there was the Hawaii false alarm, followed the next day by an unexplained interruption of Rush on KONP using the EBS tone, followed two days later by the tsunami warning for the West Coast.
Does that sound unusual to you?
This one sure sounds unusual:
http://abcnews.go.com/US/false-tsunami-warnings-east-coast-texas/story?id=52872734
RING OF FIRE threat - due to the recent earthquakes.
“UN warns Pacific Ring of Fire is ‘active’ as volcanoes erupt across Asia”
https://www.channelnewsasia.com/news/asiapacific/un-warns-pacific-ring-of-fire-is-active-as-volcanoes-erupt-9891808