Forecasters have lifted a tsunami warning for the U.S. state of
Hawaii, following Saturday's major earthquake off the coast of
Canada. The Hawaii-based Pacific Tsunami Warning Center says the
tsunami threat has decreased and is now just an advisory. But
the center warned sea-level changes and strong currents could
still happen and would present a hazard for swimmers and
boaters. Saturday's 7.7-magnitude earthquake generated mild
tsunamis, causing no major damage along the coasts of the U.S.
states of California and Hawaii, as well as southwestern Canada.
The threat of worse waves had caused Hawaii Governor Neil
Abercrombie to declare a state of emergency and prompted
residents and tourists to move to higher ground. Authorities
also had warned people along Canada's coast and the U.S. coastal
regions of southeastern Alaska, northern California and southern
Oregon. A tsunami is a series of long ocean waves that can
remain a danger for many hours after the initial wave. Each wave
crest can last from five to 15 mi