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Earthquakes

Seismograph

Magnitude 6.3 earthquake off Rat Islands, Alaska - 3rd major quake within 11 hours

Tracy Sinclare
Alaskasnewssource.com
Sat, 04 Jun 2022 09:32 UTC
MAPP
A magnitude 6.3 earthquake was recorded at 3:38 p.m. Saturday about nine miles south of Davidof Island in the western Aleutians. Since that first quake, there have been five additional earthquakes in the area measuring a magnitude 2.9 and higher as of 7 p.m. Saturday.

Stephen Holtkamp, duty seismologist with the Alaska Earthquake Information Center, says this is a pretty typical sequence for this region.

"We can expect the aftershock sequence to continue for a few days," said Holtkamp. He also said there is a low chance, about 3 to 5 percent, of a larger earthquake happening in the same area.

There has been no tsunami risk with these earthquakes. Holtkamp says these earthquakes are too deep to create a tsunami. "In order for a tsunami to be generated, it (an earthquake) needs to move the sea floor up and down," said Holtkamp. "There's 65 miles of rock between where the earthquake happened and the water," Holtkamp said.

Davidof Island is in the Rat Islands. The first quake was recorded 36 miles southeast of Kiska Volcano and 55 miles west of Semisopochnoi Island.

Comment: Details of the other two:

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Seismograph

Magnitude 6.2 earthquake - South Pacific Ocean off Tonga


Volcano Discovery
Sat, 04 Jun 2022 17:12 UTC
maps
Strong magnitude 6.2 earthquake at 238 km depth

A magnitude 6.0 earthquake near Neiafu, Vava'u, Tonga, was reported only 14 minutes ago by the German Research Centre for Geosciences (GFZ), considered one of the key international agencies that monitor seismic activity worldwide. The earthquake occurred at an intermediate to considerable depth of 237 km beneath the epicenter early morning on Sunday, June 5th, 2022, at 2:07 am local time. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.
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Seismograph

Shallow magnitude 6.4 earthquake recorded west of Macquarie Island

Maryam Zakir-Hussain
The Independent (UK)
Sat, 04 Jun 2022 17:04 UTC
Magnitude 6.4 earthquake recorded west of Australia’s Macquarie Island (Getty Images)
© Getty Images
Magnitude 6.4 earthquake recorded west of Australia’s Macquarie Island
Island was also hit with 6.9 magnitude quake two weeks ago
A magnitude 6.4 earthquake has struck the west of Australia's Macquarie Island.

The island, about 1,600km southeast of Tasmania, felt the earthquake late on Saturday night.

No damage has been reported so far.

The earthquake had a depth of 10km and is believed to have been felt shortly after 11pm.

A 6.9 magnitude earthquake also hit the island two weeks ago, briefly placing Australia on tsunami watch.
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Seismograph

4 dead, 14 injured after earthquake hits China's Sichuan


Xinhua
Wed, 01 Jun 2022 18:01 UTC
At least four people are dead and 14 others injured after two earthquakes hit southwestern China on Wednesday, state media reported.

At least four people are dead and 14 others injured after two earthquakes hit southwestern China on Wednesday, state media reported.
Four people have been confirmed dead and 14 others are injured after an earthquake jolted the city of Ya'an in southwest China's Sichuan Province on Wednesday afternoon, according to the city's earthquake relief headquarters.

A 6.1-magnitude earthquake rattled Lushan County of Ya'an in Sichuan, at 5 p.m. Wednesday Beijing Time, according to the China Earthquake Networks Center (CENC).

The epicenter, with a depth of 17 km, was monitored at 30.4 degrees north latitude and 102.9 degrees east longitude, the CENC said.

The earthquake was followed by a 4.5-magnitude quake at 5:03 p.m. in Baoxing County, the city of Ya'an.

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Seismograph

UK hit by over 20 earthquakes already in 2022: where and when they've hit


KentLive
Wed, 01 Jun 2022 13:10 UTC
Britain is shook by earthquakes a lot more often than people realise
© PA
Britain is shook by earthquakes a lot more often than people realise
Shropshire residents were shocked by a 3.8 magnitude earthquake yesterday (May 30). But, they occur much more frequently in Britain than you'd expect.

The quake was the third to hit the UK in the last 24 hours, taking place at around 3.36pm and at a depth of 4.9 miles. According to the British Geological Survey (BGS), 3.8 magnitude earthquakes only happen in the UK around every two years.

However, unbeknownst to many of us, the tremors are not unusual in the UK: it's just that a lot of the time, we miss them. But over the years, the South East has been subject to some of the biggest in the country.
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Fire

This week in volcano news - Hunga Tonga is erupting, Hualalai earthquake

GeologyHub
YouTube
Sun, 29 May 2022 19:44 UTC
erupts

In the last week, it was discovered that the Hunga Tonga Hunga Ha'apai volcano is still erupting. New information shows that the volcano produced a VEI 6 eruption, deepening its caldera by more than 700 meters or 2000 feet. Meanwhile in Hawaii, a moderate magnitude earthquake occurred on the flanks of the Hualalai volcano, leading some to suspect that it was volcanic in origin. And, in Papua New Guinea, magmatic uplift was detected at a volcano which has not erupted in more than 135 years. This video will discuss these volcano related news stories, as told and analyzed by a volcanologist.

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Seismograph

Strong magnitude 6.2 earthquake - Banda Sea, East Timor - 4th major quake within 14 hours


Volcano Discovery
Fri, 27 May 2022 09:39 UTC
maps
Strong magnitude 6.2 earthquake at 49 km depth

The quake hit at a shallow depth of 10 km beneath the epicenter near Lospalos, Municipio de Lautem, Timor-Leste, in the morning on Friday, May 27th, 2022, at 11:36 am local time. Shallow earthquakes are felt more strongly than deeper ones as they are closer to the surface. The exact magnitude, epicenter, and depth of the quake might be revised within the next few hours or minutes as seismologists review data and refine their calculations, or as other agencies issue their report.

Our monitoring service identified a second report from Geoscience Australia (GeoAu) which listed the quake at magnitude 6.4. Other agencies reporting the same quake include the citizen-seismograph network of RaspberryShake at magnitude 6.3, and the European-Mediterranean Seismological Centre (EMSC) at magnitude 6.3.

Generally quakes of this magnitude are recorded by more than one agency and the results can vary, with subsequent reports that come in after the first one often showing more accuracy.

Comment: Details of the other three:

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Seismograph

Strong shallow magnitude 6.2 earthquake - South Pacific Ocean - 3rd major quake within 7 hours


Volcano Discovery
Thu, 26 May 2022 19:14 UTC
maps
Earthquake details

Date & time May 26, 2022 18:10:04 UTC
Local time at epicenter Thursday, May 26, 2022 at 10:10 am (GMT -8)
Status Confirmed
Magnitude 6.2
Depth 10.0 km
Epicenter latitude / longitude 49.7844°S / 114.8724°W

Comment: Details of the other two:

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Seismograph

Shallow magnitude 6.4 earthquake - South Pacific Ocean, New Caledonia


Volcano Discovery
Fri, 27 May 2022 19:21 UTC
maps
Earthquake details

Date & time May 26, 2022 15:37:58 UTC
Local time at epicenter Friday, May 27, 2022 at 2:37 am (GMT +11)
Status Confirmed
Magnitude 6.4
Depth 10.0 km
Epicenter latitude / longitude 22.8048°S / 172.0689°E (South Pacific Ocean, New Caledonia)
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Seismograph

Peru earthquake: 7.2 magnitude quake shakes south of country


Sky News
Thu, 26 May 2022 13:14 UTC
maps
A 7.2 magnitude earthquake has shaken southern Peru, according to the US Geological Survey.

There were no immediate reports of damage or injury.

The quake struck at around 7.02am local time in the Tirapata region and was centred 8.1 miles (13km) east-southeast of Azangaro.

It was fairly deep at around 135.3 miles (217.8km) beneath the surface.

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