• News | Home
  • Sports
    • Cricket
      • Cricket News
      • Cricket Videos
      • IPL -2020
      • T-10 Cricket
    • Soccer
      • Soccer News
      • Soccer Videos
  • World News
    • Australia
    • Canada
    • India
    • New Zealand
    • UK
    • USA
  • Technology
    • Innovations
    • Tech Videos
  • हिंदी समाचार
    • बड़ी ख़बर
    • विदेश
    • करियर
    • बॉलीवुड
    • खेल
  • Contact Us
T-TEN WORLD NEWS
  • News | Home
  • Sports
    • Cricket
      • Cricket News
      • Cricket Videos
      • IPL -2020
      • T-10 Cricket
    • Soccer
      • Soccer News
      • Soccer Videos
  • World News
    • Australia
    • Canada
    • India
    • New Zealand
    • UK
    • USA
  • Technology
    • Innovations
    • Tech Videos
  • हिंदी समाचार
    • बड़ी ख़बर
    • विदेश
    • करियर
    • बॉलीवुड
    • खेल
  • Contact Us
No Result
View All Result
  • News | Home
  • Sports
    • Cricket
      • Cricket News
      • Cricket Videos
      • IPL -2020
      • T-10 Cricket
    • Soccer
      • Soccer News
      • Soccer Videos
  • World News
    • Australia
    • Canada
    • India
    • New Zealand
    • UK
    • USA
  • Technology
    • Innovations
    • Tech Videos
  • हिंदी समाचार
    • बड़ी ख़बर
    • विदेश
    • करियर
    • बॉलीवुड
    • खेल
  • Contact Us
No Result
View All Result
T-TEN WORLD NEWS
No Result
View All Result
Home Technology Innovations

Climate Change Is Intensifying the Tsunami Threat in Alaska

admin by admin
November 22, 2020
in Innovations
0
Climate Change Is Intensifying the Tsunami Threat in Alaska
0
SHARES
4
VIEWS
Share on FacebookShare on Twitter


This story originally appeared in High Country News and is part of the Climate Desk collaboration.

Tucked against glacier-capped mountains, the Begich Towers loom over Whittier, Alaska. More than 80 percent of the small town’s residents live in the Cold War-era barracks in this former secret military port, whose harbor teems every summer with traffic: barnacle-encrusted fishing boats, sightseeing ships, sailboats, superyachts and cruiseliner monstrosities. This summer, coronavirus travel restrictions put a damper on tourism in the usually buzzing port. Then came warnings of a potentially devastating tsunami.

Whittier residents have been mindful of tsunamis for generations. In 1964, the Good Friday earthquake was followed by a 25-foot wave that crushed waterfront infrastructure, lifting and twisting rail lines and dragging them back to sea. The Good Friday earthquake—which killed 13 people here and caused $10 million worth of damage—still occupies Whittier’s memory.

With tons of rock and rubble precariously perched high above a nearby fjord, ready to crash into the sea, the town’s present is being shaped by both its past and preparations for an uncertain future. This destabilization is being driven by climate change: Tsunamis are becoming more likely in Alaska as hillsides, formerly reinforced by glaciers and solidly frozen ground, loosen their hold on once-stable slopes.

On May 14, an Alaska Department of Natural Resources press release and a public letter from 14 scientists warned locals of a possible landslide-generated tsunami. Alaska has identified three similar events in the past: Tsunamis in 2015 and 1967 occurred in remote areas, while one in 1958 killed two people whose boat was capsized. But the unstable slope in Barry Arm, a narrow steep-walled fjord in Prince William Sound, is vastly more dangerous. The potential energy from a catastrophic slide here is approximately 10 times greater than previous events, the state’s top geologist said in the May press release.

The landslide in Barry Arm has been lurching towards the ocean since at least 1957, when Barry Glacier—which once gripped the base of the mountainside and held back the slope—first pulled its load-bearing ice wall out from under the rocky slope. As the glacier retreated, so did the slope’s support system—dragging the rock face downward toward the ocean, leaving a distinct, zig-zagging indentation in the hillside. Between 2009 and 2015, Barry Glacier retreated past the bottom edge of the landslide, and the slope fell 600 feet. Since 2006, Barry Glacier has receded by more than two miles. Scientists believe the slope is likely to fail within the next 20 years—and could even do so within the year.

Climate change makes land more unstable and increases the risk of landslide-caused tsunamis. As the climate warms, glaciers melt and recede, pulling back from the mountainsides they were hugging. Barry Glacier’s wall of ice—which once held the hillside in place, supporting it against the fjord’s mountains—has thinned, edging away from the rock face, releasing its support and revealing an unstable slope that is slipping downward toward the ocean. Brentwood Higman, geologist and executive director of Ground Truth Alaska, is working with other scientists to research climate change’s impact on landslide-triggered tsunamis. “[These events] are worth worrying about regardless of climate change,” Higman said. “But there are a number of reasons to think climate change makes them a lot more likely.”

As glaciers recede, the land above them also becomes more unstable. The craggy alpine region of south-central Alaska is already thawing dramatically. Once-frozen slabs of rock, dirt and ice are releasing trapped liquids and becoming more prone to sliding down mountains.

Another less-obvious symptom of climate change increases the risk. When there’s more water in the atmosphere, precipitation becomes more intense. Rain, even more than earthquakes, is prone to trigger landslides, Higman said. Climate change will make landslides more likely and more frequent, said Anna Liljedahl, an associate scientist with the Woods Hole Research Center. “It’s a new emerging hazard, and that’s why it’s urgent to do an assessment of where we have these unstable slopes and where they are a hazard to people,” Liljedahl said.



Source link

Share this:

  • Click to share on Twitter (Opens in new window)
  • Click to share on Facebook (Opens in new window)
  • Click to share on WhatsApp (Opens in new window)

Like this:

Like Loading...

Disclaimer: This story is auto-aggregated by a computer program and has not been created or edited by T-10worldnews. Publisher: admin

Previous Post

Family of jailed Saudi activist implores Canada to call out kingdom’s human rights record at G20

Next Post

Madhuri Dixit looks breathtaking in a traditional ensemble photo goes viral | T-10 NEWS

admin

admin

Next Post
Madhuri Dixit looks breathtaking in a traditional ensemble photo goes viral | T-10 NEWS

Madhuri Dixit looks breathtaking in a traditional ensemble photo goes viral | T-10 NEWS

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Discover Top Career Opportunities Abroad Register Now !

https://t-10worldnews.com/wp-content/uploads/2019/12/StudyHeights_NextGenEd.mp4
  • Trending
  • Comments
  • Latest
Sony PS5: Here’s where you can still buy the next-gen PlayStation today on launch day

PS5 restock: Here’s where and how to buy a PlayStation 5 this week

December 2, 2020
Xbox Series X restock for Cyber Monday: Where to buy the next-gen gaming system

Xbox Series X restock for Cyber Monday: Where to buy the next-gen gaming system

November 28, 2020
Xbox Series X and Series S restock: Where to buy this week

Xbox Series X and Series S restock: Where to buy this week

December 3, 2020
Police handed over fake contract of ration card printing | T-10 NEWS

Gangster Hashim Baba arrested by delhi police – दिल्‍ली पुलिस के साथ मुठभेड़ में टॉप मोस्‍ट गैंगस्‍टर हाशिम बाबा पकड़ा गया, 6 लाख रु. का है इनाम | T-10 NEWS

November 11, 2020
Herald afternoon quiz: January 1 | T-10 NEWS

Herald afternoon quiz: January 1 | T-10 NEWS

1
3 tips for entering text on a smartphone

3 tips for entering text on a smartphone

1
How to install the Podman container engine on CentOS 8

How to install the Podman container engine on CentOS 8

1
Coronavirus in Canada: What are the next steps to contain the disease here?

Coronavirus in Canada: What are the next steps to contain the disease here?

1
Earthquake swarm, North Island tsunami warning after magnitude 8 shake | T-10 NEWS

Earthquake swarm, North Island tsunami warning after magnitude 8 shake | T-10 NEWS

March 5, 2021
Chennai Super Kings full squad after IPL 2021 auction

IPL 2021: Dhoni lands in Chennai, CSK camp likely from March 9

March 4, 2021
IPL 2021: CSK to begin training next week, more players to join camp

IPL 2021: CSK to begin training next week, more players to join camp

March 4, 2021
PSL 2021 – What postponing the tournament means for Pakistan cricket | Cricket | T-10 NEWS

PSL 2021 – What postponing the tournament means for Pakistan cricket | Cricket | T-10 NEWS

March 4, 2021

Recent News

Earthquake swarm, North Island tsunami warning after magnitude 8 shake | T-10 NEWS

Earthquake swarm, North Island tsunami warning after magnitude 8 shake | T-10 NEWS

March 5, 2021
Chennai Super Kings full squad after IPL 2021 auction

IPL 2021: Dhoni lands in Chennai, CSK camp likely from March 9

March 4, 2021
IPL 2021: CSK to begin training next week, more players to join camp

IPL 2021: CSK to begin training next week, more players to join camp

March 4, 2021
PSL 2021 – What postponing the tournament means for Pakistan cricket | Cricket | T-10 NEWS

PSL 2021 – What postponing the tournament means for Pakistan cricket | Cricket | T-10 NEWS

March 4, 2021
T-TEN WORLD NEWS

Visitors

0343162
Visit Today : 95
Visit Yesterday : 616

Follow Us

Browse by Category

  • Apps
  • Business
  • Canada
  • Cricket
  • Cricket Videos
  • Entertainment
  • Fashion
  • Food
  • Gadget
  • Gaming
  • Health
  • Innovations
  • IPL -2020
  • Lifestyle
  • Mobile
  • Movie
  • Music
  • New Zealand
  • News
  • Politics
  • Review
  • Science
  • Soccer
  • Soccer Videos
  • Sports
  • Startup
  • Tech
  • Tech Videos
  • Travel
  • Uncategorized
  • World
  • World News
  • खेल
  • बड़ी ख़बर

Recent News

Earthquake swarm, North Island tsunami warning after magnitude 8 shake | T-10 NEWS

Earthquake swarm, North Island tsunami warning after magnitude 8 shake | T-10 NEWS

March 5, 2021
Chennai Super Kings full squad after IPL 2021 auction

IPL 2021: Dhoni lands in Chennai, CSK camp likely from March 9

March 4, 2021
IPL 2021: CSK to begin training next week, more players to join camp

IPL 2021: CSK to begin training next week, more players to join camp

March 4, 2021
  • News | Home
  • Sports
  • World News
  • Technology
  • हिंदी समाचार
  • Contact Us

© 2020 t-10worldnews.com

No Result
View All Result
  • News | Home
  • Sports
    • Cricket
      • Cricket News
      • Cricket Videos
      • IPL -2020
      • T-10 Cricket
    • Soccer
      • Soccer News
      • Soccer Videos
  • World News
    • Australia
    • Canada
    • India
    • New Zealand
    • UK
    • USA
  • Technology
    • Innovations
    • Tech Videos
  • हिंदी समाचार
    • बड़ी ख़बर
    • विदेश
    • करियर
    • बॉलीवुड
    • खेल
  • Contact Us

© 2020 t-10worldnews.com

%d bloggers like this: