Geology, Earthquakes & Volcanism News and Discussions

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Time_Traveller
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Re: Geology, Earthquakes & Volcanism News and Discussions

Post by Time_Traveller »

The Croatian village where the land became 'Swiss cheese'
5th July 2021

Villagers in north-east Croatia feared their homes might be swallowed when almost 100 enormous sinkholes appeared in a month. Now scientists are trying to understand if the land that is left is safe.

It happened suddenly and without warning. Where there should have been the emerging first shoots of potato seedlings behind the orchard in Nikola Borojević's spacious garden, there was now huge hole. Measuring 30m (98ft) wide and 15m (49ft) deep, it quickly filled with water. And it wasn't the only one.

Within the space of a few weeks, dozens of similar holes had opened up around the village of Mečenčani and neighbouring Borojovići in north-east Croatia. The one outside Borojević's home in Mečenčani appeared on 5 January, just six days after a 6.4 magnitude earthquake struck the area around the nearby city of Petrinja. It was the strongest earthquake to have hit Croatia for more than four decades, killing seven people and destroying thousands of homes.

While landslides and sinkholes are known to be triggered by earthquakes, along with other strange geological phenomena such as liquefactions – where the solid ground begins to behave like a liquid – the sheer number of holes appearing around the two villages surprised and baffled experts. A month after the earthquake, there were almost 100 sinkholes spread over a 10 sq km (3.8 sq miles) area, with new ones opening every week.

The hole in Borojević's garden is now the largest in the area. When it first appeared it was 10m (33ft) wide, but started to grow almost immediately.
https://www.bbc.com/future/article/2021 ... -sinkholes
“People assume that time is a strict progression of cause to effect, but *actually* from a non-linear, non-subjective viewpoint - it's more like a big ball of wibbly wobbly... time-y wimey... stuff.” - Steven Moffat
caltrek
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Re: Geology, Earthquakes & Volcanism News and Discussions

Post by caltrek »

Largest U.S. Earthquake in 50 years: What We Know So Far

https://earthquake.alaska.edu/

Introduiction:
Alaska Earthquake Center) At 10:15pm Alaska time on July 28, a magnitude 8.2 earthquake struck offshore of the Alaska Peninsula, the largest U.S. earthquake in 50 years. The Chignik Earthquake depth was approximately 28.5 miles, an intermediate-depth earthquake.

The Chignik Earthquake occurred relatively close (about 45 miles) to the location of the M7.6 Simeonof Island Earthquake that ruptured July 21, 2020. The Chignik Earthquake seems to be related to the earlier earthquake; both occurred along the interface between the subducting Pacific and overriding North America plates, although the Chignik Earthquake was the deeper of the two. The Alaska Peninsula is a seismically active region where thousands of earthquakes occur each year. The largest earthquakes are located along the interface, which is called the Aleutian megathrust. The M8.2 event ruptured this interface in the region between the Shumagin Islands to southwest and Kodiak Island to northeast. Previously, the 1938 M8.3 earthquake ruptured this section of the interface.
weatheriscool
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Post by weatheriscool »

Magnitude 8.2 earthquake hits off Alaska coast
A bit of a shaker, no damage reported:
https://www.adn.com/alaska-news/2021/07 ... arthquake/
Gulf of Alaska coast under tsunami warning following 8.2 earthquake - Anchorage Daily News
Xyls
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Re: Geology, Earthquakes & Volcanism News and Discussions

Post by Xyls »

Magnitude 7.2 earthquake strikes Haiti

This is a larger quake than the 2010 Earthquake that killed north of 100,000+ people.

https://www.cnn.com/world/live-news/hai ... index.html

More details expected.
weatheriscool
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Post by weatheriscool »

Earthquake of magnitude 7 strikes Alaska peninsula - EMSC
Source: Reuters
Aug 14 (Reuters) - An earthquake of magnitude 7 struck the Alaska peninsula, the European-Mediterranean Seismological Centre (EMSC) said on Saturday.

The U.S. Tsunami Warning System said there was no tsunami warning after the quake.

The quake was at a depth of 10 km (6 miles), EMSC said.
Read more: https://www.reuters.com/business/enviro ... 021-08-14/
weatheriscool
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weatheriscool
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weatheriscool
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weatheriscool
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At least 304 dead as Haiti struck by 7.2-magnitude earthquake

At least 304 people have died and hundreds are missing after Haiti was struck by a 7.2-magnitude earthquake that reduced churches, hotels and homes to rubble, in the latest tragedy to hit a Caribbean nation already mired in profound humanitarian and political crises and still reeling from the recent assassination of its president.

The earthquake on Saturday, which struck the country’s south-west at 8.29am local time, was felt across the Caribbean and rekindled painful memories of the devastating 2010 quake that killed more than 200,000 people. The prime minister, Ariel Henry, has declared a month-long state of emergency.
...
The US president, Joe Biden, authorised an immediate response and named Samantha Power as the senior official coordinating the US effort to help Haiti. USAID will help to assess damage and assist in rebuilding, said Biden, who called the United States a “close and enduring friend to the people of Haiti”.

A growing number of countries offered help, including Argentina and Chile, which said it was preparing to send humanitarian aid. “Once again, Haiti has been hit by adversity,” the Chilean president, Sebastián Piñera, said.

https://www.theguardian.com/world/2021/ ... earthquake
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Yuli Ban
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Post by Yuli Ban »

And remember my friend, future events such as these will affect you in the future
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