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Thu, 29 Oct 2020
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Earthquakes

Seismograph

Magnitude 6.3 earthquake hits Papua New Guinea: USGS

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An earthquake of magnitude 6.3 struck Papua New Guinea on Thursday, the United States Geological Survey (USGS) said.

The onshore quake struck 38 km northeast of Kainantu at a depth of 103.5 km (64 miles), it said.

There were no immediate reports of damage, and the U.S. Tsunami Warning System said there was no threat of a tsunami.

Seismograph

6.0-magnitude earthquake hits off Fiji

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An earthquake with a magnitude of 6.0 jolted 232 km E of Levuka, Fiji at 10:11:46 GMT on Tuesday, the U.S. Geological Survey said.

The epicenter, with a depth of 628.52 km, was initially determined to be at 18.0249 degrees south latitude and 178.4906 degrees west longitude.

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6.0-magnitude earthquake hits off Papua New Guinea

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An earthquake with a magnitude of 6.0 jolted 99 km W of Kandrian, Papua New Guinea at 10:34:48 GMT on Thursday, the U.S. Geological Survey said.

The epicenter, with a depth of 109.22 km, was initially determined to be at 6.0867 degrees south latitude and 148.6576 degrees east longitude.

Seismograph

Shallow 6.4 magnitude earthquake strikes off Tonga

Tonga earthquake map
© Volcano Discovery

Date & time: Thursday, 1 October 2020 01:13 UTC
Local time at epicenter: 1 Oct 2:13 pm (GMT +13)
Magnitude: 6.4
Depth: 35.0 km
Epicenter latitude / longitude: 19.495°S / 174.2254°W (Tonga)
Nearest volcano: Late (113 km / 70 mi)

Seismograph

A 'swarm' of earthquakes rocks Southern California

California quake swarm
Forty-five quakes of magnitude 3.0 have struck Southern California on Wednesday, the largest of which was a magnitude 4.9.

Dr. Lucy Jones, a seismologist, founder & chief scientist at her center, said it is one of the largest swarms we have had in the Imperial Valley - and it is historically the most active swarms in Southern California.

Several swarms of earthquakes occurred near San Andreas.

Wednesday evening from around 4:30 p.m. to 6:05 p.m. there has been an M4.4, M4.9, and most currently a M4.2.

Jones said they are too far from the San Andreas fault to change the probability of a quake on it.

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Shallow 6.2-magnitude earthquake hits south of Africa, USGS says

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A 6.2-magnitude earthquake hit south of Africa at around 17:10 GMT this Saturday with the epicentre lying at the depths of 10 kilometres, according to the US Geological Survey

No tsunami warning has been issued yet. Meanwhile, people living in South Africa have been reporting tremors.


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UK town hit by fourth earthquake in two weeks

Tremors were felt in Leighton Buzzard for the third time in three weeks
© Richard Croft
Tremors were felt in Leighton Buzzard for the fourth time in two weeks
Leighton Buzzard has been hit by two aftershocks in the space of a few hours - taking the total number of earthquakes felt in the area over the last two weeks to four.

A magnitude 2.1 event struck at 1.39pm on Tuesday afternoon, just over four hours after a 3.0 tremor was felt in the Bedfordshire town at 9.32am.

Geologists said they were likely to be aftershocks of the first quake felt in the area on 8 September.

"There's obviously been some stress been building up in that particular area and we've had the initial earthquake," said Glenn Ford, a seismologist with the British Geological Survey (BGS). "It's maybe just still rebalancing the stress regime in that particular part of the world and we're getting these little aftershocks occurring as well."

The 8 September tremor was magnitude 3.5 and the first aftershock five days later measured 2.1.

According to the BGS, residents said Tuesday's first tremor "only lasted a couple of seconds" and that they "felt a single jolt, a bit like being in a car that has done an emergency stop".

Comment: SECOND earthquake in a week hits UK town


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Southern California is rocked by a 4.5-magnitude earthquake - with tremors felt from Los Angeles to San Diego

California quake map
© USGS
A 4.5-magnitude earthquake rocked Southern California, with tremors felt from Los Angeles down to San Diego.

The quake hit 10 miles west of L.A. at 11.39 pm local time on Friday, according to the US Geological Survey.

It occurred at a depth of nearly 11 miles, and lasted for 30 seconds. It was reported to be one of the biggest earthquakes to hit the L.A. area in years.

There have been no reports of injuries or damage to property, but authorities warned locals to prepare for aftershocks.

The Los Angeles Fire Department posted a tweet shortly after the quake, which read: 'If Inside When Shaking Starts: DROP, COVER, HOLD ON! Protect Your Head & Neck While Taking Cover Under Sturdy Furniture or Near a Sturdy Interior Wall, Away From Windows and Doorways Until Shaking Stops.

Seismograph

6.9 magnitude earthquake hits Mid-Atlantic ridge

Mid Atlantic ridge quake
A magnitude 6.9 earthquake occurred Friday evening on the central Mid-Atlantic Ridge between the west Coast of Africa and South America at 6:43 PM EDT.

The epicenter is over 4,000 miles away from the state of Florida and poses no tsunami threat to the U.S. mainland.

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Shallow M6.1 earthquake strikes Fiji Islands Region

Fiji quake map
© emsc-csem
An earthquake with a magnitude of 6.1 jolted 149 km NNE of Labasa, Fiji at 04:12:17 GMT on Tuesday, the U.S. Geological Survey said.

The epicenter, with a depth of 10.0 km, was initially determined to be at 15.145 degrees south latitude and 179.7934 degrees east longitude.