“Pressure Jump”
p. 90 · Read in the full issue
Sea Wave?
An unusual tidal disturbance around Upolu Island, Samoa, re cently was due, it is suggested by American authorities, to a “pressure jump” rather than a submarine earthquake.
The sea level fell considerably at first and then rose to well above high water mark in a series of waves. Observatories at Suva, Fiji, and Honolulu ad vised that no earthquakes oc curred at the time.
A reply from Washington said that the Samoan description fitted “solitary waves associated with pressure jumps that have been reported occasionally in the Gulf of Mexico and Lake Michigan”.