Tokyo (AP) : A powerful 7.4 magnitude earthquake struck off the coast of Fukushima in northern Japan on Wednesday night, smashing furniture, knocking out power and killing four people. A small tsunami reached shore, but the low-risk advisory was lifted by Thursday morning.

The region is part of northern Japan that was devastated by a deadly 9.0 quake and tsunami 11 years ago that caused nuclear reactor meltdowns, spewing massive radiation that still makes some parts uninhabitable.

Prime Minister Fumio Kishida told a parliamentary session Thursday morning that four people died during the quake and the cause of their deaths are being investigated, while 97 others were injured. A man in his 60s in Soma city died after falling from the second floor of his house while trying to evacuate, and a man in his 70s panicked and suffered a heart attack, Kyodo News reported earlier.

The Japan Meteorological Agency early Thursday lifted its low-risk advisory for a tsunami along the coasts of Fukushima and Miyagi prefectures. Tsunami waves of 30 centimeters (11 inches) reached shore in Ishinomaki, about 390 kilometers (242 miles) northeast of Tokyo.

The agency upgraded the magnitude of the quake to 7.4 from the initial 7.3, and the depth from 60 kilometers (36 miles) below the sea to 56 kilometers (35 miles).

NHK footage showed broken walls of a department store building fell to the ground and shards of windows scattered on the street near the main train station in the inland prefectural capital of Fukushima city. Roads were cracked and water poured out from pipes underground.

Footage also showed furniture and appliances smashed to the floor at apartments in Fukushima. Cosmetics and other merchandise at convenience stores fell from shelves and scattered on the floor. In Yokohama, near Tokyo, an electric pole nearly fell.

The Tokyo Electric Power Company Holdings, which operates the Fukushima Daiichi nuclear plant where the cooling systems failed after the 2011 disaster, said workers found no abnormalities at the site, which is being decommissioned.

Japan's Nuclear Regulation Authority said a fire alarm went off at the turbine building of No. 5 reactors at the Fukushima Daiichi but there was no actual fire. Water pumps for the spent fuel cooling pool at two of the four reactors at Fukushima Daini briefly stopped, but later resumed operation. Fukushima Daini, which survived the 2011 tsunami, is also set for decommissioning.

More than 2.2 million homes were temporarily without electricity in 14 prefectures, including the Tokyo region, but power was restored at most places by the morning, except for about 37,000 homes in the hardest hit Fukushima and Miyagi prefectures, according to the Tohoku Electric Power Co. which services the region.

The quake shook large parts of eastern Japan, including Tokyo, where buildings swayed violently.

East Japan Railway Co. said most of its train services were suspended for safety checks. Some local trains later resumed service.

Many people formed long lines outside of major stations while waiting for trains to resume operation late Wednesday, but trains in Tokyo operated normally Thursday morning.

A Tohoku Shinkansen express train partially derailed between Fukushima and Miyagi due to the quake, but nobody was injured, Prime Minister Fumio Kishida said.

He told reporters that the government was assessing the extent of damage and promised to do its utmost for rescue and relief operations.

Please first take action to save your life," Kishida tweeted.

Chief Cabinet Secretary Hirokazu Matsuno said authorities were scrambling to assess damage. We are doing our utmost in rescue operations and putting people's lives first, he said.

He urged residents in the affected areas to use extra caution for possible major aftershocks for about a week.

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Lucknow/Sambhal (UP) (PTI): Three Samajwadi Party parliamentarians, including its Sambhal MP, were stopped from entering the violence-hit district, as the administration on Saturday extended the ban on the entry of outsiders into Sambhal to December 10 to maintain "peace and order".

The administration's earlier ban on the entry of outsiders was to expire on Saturday.

The Samajwadi Party's Muzaffarnagar MP Harendra Malik, accompanied by its Kairana and Sambhal MPs, was stopped from entering Sambhal from Ghaziabad.

"I don't understand why we are being stopped. Are the opposition leader and the MPs so irresponsible that they can't be allowed to move within the state?" Malik said.

The party had earlier announced a 15-member delegation would visit the district to gather information about the violence that broke out over a court-ordered survey of the Shahi Jama Masjid.

Curbs under Section 163 (power to issue order in urgent cases of nuisance or apprehended danger) of the Bharatiya Nagrik Suraksha Sanhita, set to expire on Sunday, were extended to December 31.

In a statement issued in Sambhal, District Magistrate Rajendra Pensiya said, "To maintain peace and order, the imposition of Section 163 of the Bharatiya Nagrik Suraksha Sanhita in the district has been extended to December 31."

"No outsider, any social organisation or public representative can enter into the borders of the district without seeking the permission of the competent authority till December 10," he added.

Tension had been brewing in Sambhal since November 19 when the court-ordered survey of the Mughal-era mosque was carried out following claims that a Harihar temple previously stood at the site.

Violence erupted during a second survey on November 24 as protesters gathered near the mosque and clashed with security personnel, leading to stone pelting and arson. Four people died and several others were injured in the clashes. The police have denied allegations that it fired at the protesters.

The Supreme Court has since ordered the Sambhal trial court to halt proceedings in the case and its survey.

Pensiya further said, "If anyone tries to spread rumours on any group on social media, the group admin will delete the post and immediately inform the police. Cyber cafes will keep a register to enter the names of visitors. No person in Sambhal will burn effigies at public places."

Malik, who was stopped from entering Sambhal, further said, "Our delegation also included MPs Zia-ur-Rehman Barq (Sambhal) and Iqra Hasan (Kairana). What can we do? The government is acting in an autocratic manner."

Sambhal MP Barq has been booked in connection with the November 24 violence for "provocative acts".

In Moradabad, Samajwadi Party MP Ruchi Veera's residence was surrounded by cops to prevent her from travelling to Sambhal.

Leader of Opposition in the Uttar Pradesh Assembly Mata Prasad Pandey, who was to lead the delegation, told reporters outside his Lucknow residence that Home Secretary Sanjay Prasad called him and requested him to not visit Sambhal.

Pandey is sitting on a dharna in Lucknow.

"The Sambhal district magistrate also called and told me that the ban on the entry of outsiders had been extended. I will now visit the party office and discuss the issue before deciding on our next action," he said.

"The government perhaps wanted to prevent me in order to hide its wrongdoings in Sambhal as our visit would have exposed its mistakes," he added.

Heavy security has been deployed outside Pandey's residence since Friday.

The Samajwadi Party had postponed an earlier visit after assurances from the director general of police about a fair investigation into the violence.

Congress state chief Ajay Rai earlier told PTI that a party delegation would visit Sambhal on December 2.