Japan's Meteorological Agency said the biggest wave in the initial tsunami following the magnitude 8.8 quake off Chile was recorded in northern Japan. It was 35 inches high. Another, measuring about 12 inches, was observed in Hokkaido, also to the north.
There were no reports of damage.
As it crossed the Pacific, the tsunami has dealt populated areas - including the US state of Hawaii -- just a glancing blow.
The Pacific Tsunami Warning Center already lifted its warning for every country but Russia and Japan, though some countries in Asia and the Pacific -- including the Philippines, Australia and New Zealand -- were keeping their own watches in place as a precaution.
The tsunami initially raised fears that the Pacific could fall victim to the type of killer waves that killed 230,000 people in the Indian Ocean in 2004 the morning after Christmas. During that disaster, there was little to no warning and much confusion about the impending waves.
Officials said the opposite occurred after the Chile quake: They overstated their predictions for the size of the waves and the threat.
“We expected the waves to be bigger in Hawaii, maybe about 50 percent bigger than they actually were,” said Gerard Fryer, a geophysicist for the warning center.
“We'll be looking at that.” But Japan, fearing the tsunami could gain force as it moved closer, put all of its eastern coastline on tsunami alert Sunday and ordered hundreds of thousands of residents in low-lying areas to seek higher ground as waves generated by the Chilean earthquake raced across the Pacific at hundreds of miles per hour.
Japan is particularly sensitive to the tsunami threat.
In July 1993 a tsunami triggered by a major earthquake off Japan's northern coast killed more than 200 people on the small island of Okushiri. A stronger quake near Chile in 1960 created a tsunami that killed about 140 people in Japan.
Towns along northern coasts issued evacuation orders to 400,000 residents, Japan's national broadcaster, NHK, said.
NHK switched to emergency mode, broadcasting a map with the areas in most danger and repeatedly urging caution.
As the wave continued its expansion across the ocean, Japan's Meteorological Agency said its tsunami alert applied to its entire Pacific coast, with the waves expected to be biggest in the north. It said a tsunami of up to 9.8 feet could hit the northern prefectures of Aomori, Iwate and Miyagi, though the first waves were much smaller.
People packed their families into cars, but there were no reports of panic or traffic jams. Fishermen secured their boats, and police patrolled beaches, using sirens and loudspeakers to warn people to leave the area.
Elsewhere, however, the tsunami passed quietly.
By the time the tsunami hit Hawaii -- a full 16 hours after the quake - officials had already spent the morning ringing emergency sirens, blaring warnings from airplanes and ordering residents to higher ground.
The islands were back to paradise by the afternoon, but residents endured a severe disruption and scare earlier in the day: Picturesque beaches were desolate, million-dollar homes were evacuated, shops in Waikiki were shut down, and residents lined up at supermarkets to stock up on food and at gas stations.
Waves hit California, but barely registered amid stormy weather. A surfing contest outside San Diego went on as planned.
In Tonga, where up to 50,000 people fled inland hours ahead of the tsunami, the National Disaster Office had reports of a wave up to 6.5 feet high hitting a small northern island, deputy director Mali'u Takai said.
There were no initial indications of damage.
Nine people died in Tonga last September when the Samoa tsunami slammed the small northern island of Niuatoputapu, wiping out half of the main settlement.
In Samoa, where 183 people died in the tsunami five months ago, thousands remained Sunday morning in the hills above the coasts on the main island of Upolu, but police said there were no reports of waves or sea surges hitting the South Pacific nation.
Villagers living close to the Philippines' eastern coast were advised to move to higher ground, said Renato Solidum, the chief of the Philippine Institute of Volcanology and Seismology. He said a wave of about 3.2 feet high could hit early in the afternoon.
“We're not expecting any huge tsunami so we're just urging everybody to take precautions,” Solidum told The Associated Press.
On New Zealand's Chatham Islands earlier Sunday, officials reported a wave measured at 6.6 feet (2 meters).
Oceanographer Ken Gledhill said it was typical tsunami behavior when the seawater dropped a meter off North Island's east coast at Gisborne then surged back.
Several hundred people in the North Island coastal cities of Gisborne and Napier were evacuated from their homes and from camp grounds, while residents in low-lying areas on South Island's Banks Peninsula were alerted to be ready to evacuate.
New Zealand's Ministry of Civil Defense and Emergency Management downgraded the national warning to an advisory Sunday afternoon and in the Cook Islands police issued an all-clear midmorning Sunday.
In Australia, the Bureau of Meteorology reported a tsunami measuring 1.6 feet off Norfolk Island, about 1,000 miles northeast of Sydney. There were no immediate reports of damage.
