UPDATE: Beaches and Piers Reopened

Update: Newport's beaches and piers reopened at 1 p.m., the city reports.

No significant flooding occurred, although there were unusual currents and tidal surges along beaches and in the harbor, according to a news release.

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Previous story: As of 10 a.m., there had been small tidal surges seen in Newport Harbor, according to the city.

Beaches and piers in Newport remain closed, according to a news release, as the state has advised that more Tsunami-related activity may still occur.

Closures will remain in effect until at least 1 p.m., the release said.

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Previous story: Although Newport Beach was under a tsunami advisory his morning,  the harbor was calm at 9:30 and the crowds were not much bigger than usual.

The charter fishing boats that usually dock near the Balboa Fun Zone had moved out into the Harbor. However, the  Balboa Island Ferry was operating as usual.

Ken Hudnut of the U.S. Geological Survey cautioned that the first arriving waves may not be the biggest waves, which could hit about three hours afterward.

Balboa Island resident Randy Seton was watching Newport harbor from South Bay Front street.

"For me, if you worry about it, you shouldn't live here," Seton said. Seton, who  has lived on the island for 50 years,  expressed his sympathy for the people of Japan.

Currents may be hazardous to swimmers and boaters for several hours, officials said.  All of the beaches in Orange County have been closed.

Newport Elementary School in Newport Beach was closed as a precaution, because it is very close to the beach, said Orange County Sheriff's Department spokesman Amormino.

Gil Alexander of Southern California Edison said there was "no danger'' to the San Onofre Nuclear Generating Station, which has a 30-foot wall designed to protect against tsunamis.