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5.1 magnitude quake near Japan's Fukushima: US geologists

A 5.1 magnitude earthquake struck off the coast of Japan's Fukushima prefecture early on Saturday morning, the United States Geological Survey said. The moderate quake hit 34 kilometres (21 miles) east of coastal Namie city in Fukushima prefecture, where a devastating quake-tsunami in March 2011 sparked a nuclear disaster and caused massive damage. Saturday's earthquake occurred at 2:18 am local time (1718 GMT) off the east coast of Japan's main Honshu island, at a depth of 63 kilometres, US geologists said in a preliminary report.

A 5.1-magnitude quake hits eastern Japan

A shallow 5.1-magnitude earthquake hit eastern Japan Tuesday, the US Geological Survey said, but there were no local reports of any damage. The quake hit at 10:03 am (0103 GMT) in Ibaraki prefecture, 146 kilometres (91 miles) northeast of Tokyo, the agency said. The tremor was 9.9 kilometres deep, the agency said. Located roughly 80 kilometres southwest of the Fukushima nuclear plant, the quake was strong enough to gently rock high-rise buildings in the capital. Japan Meteorological Agency earlier estimated the quake's magnitude at 5.4.

A 5.1-magnitude quake hits eastern Japan

A shallow 5.1-magnitude earthquake hit eastern Japan Tuesday, the US Geological Survey said, but there were no local reports of any damage. The quake hit at 10:03 am (0103 GMT) in Ibaraki prefecture, 146 kilometres (91 miles) northeast of Tokyo, the agency said. The tremor was 9.9 kilometres deep, the agency said. Located roughly 80 kilometres southwest of the Fukushima nuclear plant, the quake was strong enough to gently rock high-rise buildings in the capital. Japan Meteorological Agency earlier estimated the quake's magnitude at 5.4.

A 5.4-magnitude quake hits eastern Japan

A shallow 5.4-magnitude earthquake hit eastern Japan Tuesday, rocking buildings in Tokyo but there were no reports of any damage, seismologists said. The quake hit at 10:03 am (0103 GMT) in Ibaraki prefecture, 160 kilometres (100 miles) northeast of Tokyo, and some 80 kilometres southwest of the crippled Fukushima nuclear plant, according to Japan Meteorological Agency. The tremor was 10 kilometres deep, the agency said, and was followed eight minutes later by a very shallow 3.6-magnitude quake in the same area.

Strong earthquake hits eastern Japan, shakes Tokyo

A 5.5-magnitude earthquake hit eastern Japan on Sunday, rocking buildings in Tokyo, seismologists said. The quake struck at 7:37 am (2237 GMT Saturday), in Ibaraki prefecture, north of the capital, at a depth of 59 kilometres (37 miles), the US Geological Survey said. The crippled Fukushima nuclear power plant was shaken by the quake but there were no abnormalities reported, the plant's operator said. The quake lasted about 30 seconds and was felt by many people in Tokyo.

Tokyo area hit by magnitude 5.5 earthquake

TOKYO (Reuters) - An earthquake with preliminary magnitude of 5.5 shook eastern Japan, including the capital Tokyo, on Sunday morning, but there were no immediate reports of damage and no threat of a tsunami, public broadcaster NHK reported. The earthquake was centered in southwest Ibaraki Prefecture, just northeast of Tokyo.

6.4-magnitude quake strikes off Tonga

A shallow 6.4-magnitude quake struck off the Pacific nation of Tonga early Sunday, the US Geological Survey said, but no tsunami warning was issued. The quake hit 345 kilometres (213 miles) northeast of the capital Nuku`alofa at a depth of 10 kilometres. The USGS PAGER (Prompt Assessment of Global Earthquakes for Response) issued a green alert level projecting a very low risk of casualties or economic losses. The Hawaii-based Pacific Tsunami Warning Centre said there was no threat of a tsunami after the quake, which was followed by a 5.4-magnitude aftershock.

Magnitude 5.5 quake strikes off Japan's east coast

A 5.5-magnitude earthquake struck off the east coast of Japan on Monday, the US Geological Survey reported, but no tsunami warning was issued. The quake hit at a depth of 26 kilometres (16 miles) at 3:13 am (1813 GMT Sunday), about 324 kilometres east of the town of Namie, the USGS said. The Pacific Tsunami Warning Center did not issue an alert. A powerful 7.1-magnitude undersea quake off the east coast two days ago triggered a small tsunami, which was recorded as being as high as 55 centimetres (22 inches) in one place.

Small tsunami hits Japan

A 30-centimetre (12-inch) tsunami hit Japan Saturday after a powerful and shallow undersea quake, broadcaster NHK said, although there were no immediate signs of serious damage or injury. People were being warned to stay away from the coast with the small wave rolling ashore in Ishinomaki around an hour after the 7.1 magnitude quake. Workers at the crippled Fukushima nuclear plant were "ordered to evacuate from the waterfront", Kyodo reported, also quoting the Tokyo Electric Power Company (TEPCO) as saying no new abnormalities had been found at the power station.

7.3 magnitude quake strikes off Japan's east coast

A 7.3 magnitude quake struck off Japan's east coast Saturday but no destructive widespread tsunami was expected, the Pacific Tsunami Warning Center said. The quake struck at a depth of 10 kilometres (6.2 miles) at 3:10am local time (1710 GMT Friday), 320 kilometres southeast of Ishinomaki in Miyagi Prefecture, according to the US Geological Survey. The USGS intially said its magnitude was 7.5, and issued a green alert on its website, signalling a low probability of deaths or economic losses.
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