Japan lowers tsunami warning but still tells people not to go home after a series of earthquakes

Japan dropped its highest-level tsunami alert, issued following a series of major earthquakes on Monday, but told residents of coastal areas not to return to their homes as deadly waves could still come.

The quakes, the largest of which had a magnitude of 7.6, started a fire and collapsed buildings on the west coast of Japan’s main island, Honshu. Media reports said two people were feared dead after the quake struck Ishikawa prefecture on the Sea of Japan side at 4.10pm (0710 GMT), according to the US Geological Survey (USGS).

The Japan Meteorological Agency reported more than a dozen quakes. At least six homes were damaged by the quakes, with people trapped inside, government spokesman Yoshimasa Hayashi said. A fire broke out in Wajima city, Ishikawa Prefecture, and electricity was out for more than 30,000 households, he said.

The agency initially issued a major tsunami warning for Ishikawa and lower-level tsunami warnings or advisories for the rest of the western coast of the island of Honshu, as well as the northernmost of its main islands, Hokkaido.

Television channels interrupted normal services with special programming including of Prime Minister Fumio Kishida urging people in danger areas to "evacuate as soon as possible" to higher ground.

"We realise your home, your belongings are all precious to you, but your lives are important above everything else! Run to the highest ground possible," an alarmed presenter on broadcaster NHK told viewers.

Waves at least 1.2 metres high hit the Wajima port and a series of smaller tsunamis were reported elsewhere, including as far away as the northern island of Hokkaido.

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The warning was downgraded to a regular tsunami several hours later, meaning the waters could still reach up to 3 metres. Aftershocks could also slam the same area over the next few days, it said.

Japanese public broadcaster NHK TV initially warned torrents of water could reach as high as 5 metres.

NHK said the tsunami waves could keep returning, and warnings were continuing to be aired hours after the initial alert. Several aftershocks also rocked the region.

Hayashi stressed that it was critical for people in coastal areas to get away from the oncoming tsunami.

“Every minute counts. Please evacuate to a safe area immediately,” he said.

People returning to get their wallets and other belongings have been known to be swept away and drowned even hours after the first evacuation warning. People were evacuated to stadiums, where they will likely have to stay for a few days.

Japanese media footage showed people running through the streets, and red smoke spewing from a fire in a residential neighbourhood. Photos showed a crowd of people, including a woman with a baby on her back, standing by huge cracks that had ripped through the pavement.

Some people sustained minor injuries when they tripped and fell while fleeing, or objects fell off shelves and hit them, according to NHK.

Bullet trains in the area were halted, although some parts of the service were restored by evening. Parts of the highway were also closed, and water pipes had burst, according to NHK. Some cell phone services in the region weren't working.

The Meteorological Agency said in a nationally broadcast news conference that more major quakes could hit the area over the next week, especially in the next two or three days.