Earthquakes
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Two earthquakes of magnitudes 6.5, 5.0 near Japan coast in quick succession

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Two earthquakes of magnitudes 6.5 and 5.0 struck near Japan's coast in quick succession on Thursday, according to the United States Geological Survey (USGS). The first quake of magnitude 6.5 struck at 2:45 pm and had its epicentre off the southeast coast of the Kuril Islands, followed by the 5.0 magnitude jolt at 3:07 pm.

According to the USGS, the two quakes hit at a depth of 23.8 km while the second one occurred at 40 km around the same region.

A series of powerful quakes have occurred in Japan throughout the year and earlier this month, tsunami warnings were issued along the southwestern coast after an earthquake of magnitude 7.5 struck Mindanao in the southern Philippines.

On May 5, an earthquake with a magnitude of 6.5 struck off Japan's western prefecture of Ishikawa, leading to the injuries of several people and the collapse of some buildings.

Powerful earthquakes also struck the northern island of Hokkaido in February, March and August.

Seismograph

Shallow 6.1 magnitude earthquake off South Africa

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A magnitude 6.1 earthquake shook the waters off southern South Africa, the US Geological Survey (USGS) reported Thursday.

The quake occurred at a depth of 10 kilometers, with an epicenter recorded at 2,155 km SE of Cape Town.

No tsunamis have been reported so far.

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Alaska struck by 6.1-magnitude quake

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An earthquake with a magnitude of 6.1 struck off the coast of Alaska on Thursday, the United States Geological Survey (USGS) said on Friday.

The quake's epicenter was registered about 107 kilometers southeast of the city of Adak on Alaska's Adak Island, at a depth of 30.1 kilometers.

There have been no immediate reports of potential damage or casualties.

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Magnitude 6.2 earthquake strikes Peru

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A 6.2 magnitude earthquake struck Peru on Wednesday, according to the US Geological Survey (USGS).

The earthquake, with its epicenter in the Iray region, occurred at a depth of 93.4 kilometers (57 miles), the USGS said.

There were no immediate reports of loss of lives and property damage.

Peru, one of the countries with the world's highest seismic movements, is located in the Pacific seismic zone, also known as the "Pacific Ring of Fire".

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China earthquake 'like being tossed by waves' as 126 dead and 155,000 homes damaged

Rescuers in orange outfits climb through damaged buildings in Kangdiao village in Jishishan county
© ReutersRescuers in orange outfits climb through damaged buildings in Kangdiao village in Jishishan county
The deadliest earthquake in over a decade has killed 126 people and injured 700 in northwestern China, leaving rescue teams scrambling to reach survivors in freezing weather conditions.

The 6.2-magnitude earthquake struck at 11.59pm (4pm GMT) on Monday, the China Earthquake Networks Centre said, as residents in Gansu and neighbouring Qinghai provinces were sleeping or preparing to sleep.

It was followed by a second 5.5 magnitude earthquake hours later in neighbouring Xinjiang.

The earthquake triggered landslides and wrecked roads and infrastructure, snapping away communication, electricity and water lines in the region.

Thousands of survivors and rescue workers are bracing for a second night of sub-zero temperature as efforts to find missing people and survivors from the rubble ran into the evening.



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6.1 magnitude earthquake off Tonga

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6.1 magnitude earthquake 158 km from Neiafu, Vava'u, Tonga

UTC time: Monday, December 11, 2023 06:33 AM
Your time: Monday, December 11, 2023 at 6:33 AM GMT
Magnitude Type: mww
USGS page: M 6.1 - 158 km W of Neiafu, Tonga
USGS status: Reviewed by a seismologist
Reports from the public: 5 people

238 km depth

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7.1 magnitude earthquake hits Vanuatu, triggers tsunami warning

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A 7.1 magnitude quake struck south of Vanuatu on Thursday, the United States Geological Survey said, triggering a tsunami warning.

USGS initially reported a magnitude of 7.3 and a depth of 35 kilometres, but soon revised its report.

The offshore quake hit at 1256 GMT at a depth of 48 kilometres (30 miles), about 123 kilometres south of the town of Isangel and 338 kilometres from the capital Port Vila, USGS said.

The Pacific Tsunami Warning Centre said "hazardous waves from this earthquake are possible within 300 kilometres of the epicenter along the coasts of Vanuatu and New Caledonia".

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Magnitude 6.9 earthquake strikes off southern Philippines - 7th mag. 6+ in area within 30 hours

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A magnitude 6.9 earthquake struck off the coast of the southern Philippines, following a series of strong quakes in the same area. Early morning on Monday, the 6.9 magnitude earthquake jolted the southern Philippines early Monday, the United States Geological Survey said.

Yesterday, a magnitude 6.6 earthquake and a deadly magnitude 7.6 quake Saturday struck in the same region.

At least two people were killed and several were injured after Saturday's quake, according to AFP news agency.

Saturday's quake triggered tsunami warnings across the Pacific region and sent residents along the east coast of Mindanao fleeing buildings, evacuating a hospital, and seeking higher ground.

Comment: For details of the other quakes, see: 7.6-magnitude earthquake strikes the Philippine Sea, 5 aftershocks of mag.6 or greater


Seismograph

7.6-magnitude earthquake strikes the Philippine Sea, 5 aftershocks of mag.6 or greater

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A major, 7.6-magnitude earthquake struck in the Philippine Sea on Saturday, according to the United States Geological Survey.

The temblor happened at 10:37 p.m. Philippine time, data from the agency shows.

As seismologists review available data, they may revise the earthquake's reported magnitude. Additional information collected about the earthquake may also prompt U.S.G.S. scientists to update the shake-severity map.


Comment: Earthquake Track noted 5 aftershocks of mag.6 or greater, for details see here, here, here, here and here.


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Shallow 6.5 magnitude earthquake strikes north of Papua New Guinea

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A shallow, 6.5-magnitude earthquake struck off the northern coast of Papua New Guinea on Tuesday, the US Geological Survey said, but no tsunami warning was issued.

The quake hit about 20 kilometres (12 miles) off the coast, a short distance from the town of Wewak, capital of the Pacific island state's East Sepik Province.

The epicentre was detected at an estimated depth of 12 kilometres (seven miles) at 8:46 am local time (2146 GMT Monday), the USGS said.

There is "no tsunami threat", the Pacific Tsunami Warning Centre said in a separate bulletin.