“Not true.”
—
I was actually just making a pun there on the oddly written headline.
But, now that you mention it -
“Since tsunamis are imperceptible in the open ocean, do not return to port if you are at sea and a tsunami warning has been issued for your area. Tsunamis can cause rapid changes in water level and unpredictable dangerous currents in harbors and ports.”
https://ptwc.weather.gov/ptwc/faq.php
In this particular case:
“This was not a common tsunami,” said Costas Synolakis, director of the University of Southern California’s Tsunami Research Center. “This was a volcanic tsunami ... it did not rise to the level of triggering an alert. So from that point of view, the Tsunami Warning Centers were essentially useless.”
Because of Anak Krakatau’s proximity to shore, Saturday’s tsunami likely struck 20 to 30 minutes after some sort of volcanic activity, according to Synolakis.”
https://www.nbcnews.com/news/world/why-tsunami-struck-indonesia-without-warning-n951416
Sometimes shirt happens and there’s not a thing you can do about it but hang on until it’s over. Unexpected suffering is part and parcel of existence.
Yeah - the “without warning” bit was probably lack of good public communications system....once one sees the sea receding it is probably too late to get out of range of the incoming deluge...have seen anecdotal stories of folks out to sea and being borne up on a gentle swell as the tsunami passed in deeper water.