tsunami Archives - SnowBrains

1000s of Alaskans Fled to Higher Ground as Largest Earthquake Since 1965 Triggered Tsunami Warnings

A shallow earthquake of magnitude 8.2 struck the Alaska Peninsula late last night, prompting tsunami warnings for the region. The earthquake was the largest in Alaska since 1965. Related: NOAA: The 10 Most Damaging Tsunamis Since 1900 The US Geological Survey (USGS) said the quake, which struck at 10:15 pm local time, was at a depth of 20 miles. Earthquakes at a […]

SnowBrains | July 29, 2021

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Brain Post: The Specter of a Mega-Tsunami in Alaska

This article originally appeared on earthobservatory.nasa.gov While kayaking in Barry Arm fjord in June 2019, Valisa Higman, an artist-in-residence at Alaska’s Chugach National Forest, noticed some odd fractures on a cliff overlooking the fjord. Curious if the slope might be in the process of collapsing, she emailed photos (see one of them below) to her brother, Bretwood Higman. “Hig” is […]

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SnowBrains | October 9, 2020

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Alaska Glacier Melt Could Trigger Catastrophic Tsunami

The melting of an Alaska glacier could trigger a catastrophic tsunami within the next year. Alaska’s Division of Geological and Geophysical Surveys (DGGS) has warned of the threat of a large and potentially dangerous tsunami. The dangerous event is looming on the Prince William Sound and could release millions of tons of rock into the Harriman Fjord. Warming temperatures have […]

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Sebastian Opazo | July 30, 2020

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7.8 Magnitude Earthquake Shakes Alaska | Tsunami Warning Issued (Since Canceled)

A strong 7.8 magnitude earthquake shook the southern coast of Alaska last night, according to the U.S. Geological Survey (USGS). A resulting tsunami warning, that has since been canceled, advised coastal residents to head for higher ground. The earthquake struck at around 10:12 pm local time at a depth of roughly six miles. The epicenter was located just over 61 miles […]

SnowBrains | July 22, 2020

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Remembering the Tallest Known Mega-Tsunami That Destroyed a Bay in Alaska

At 10:15 pm on July 10, 1958, the ground shook violently as an M7.8 earthquake occurred along the Fairweather Fault in Southeast Alaska. The strong shaking set loose an enormous rockfall, in which 40 million cubic yards of material (9 Superdomes!) tumbled down a steep slope into the narrow inlet of Lituya Bay. The impact was heard 50 miles (80 km) away […]

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SnowBrains | July 17, 2020

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Powerful 7.4 Magnitude Earthquake Hits Southern Mexico This Morning, Tsunami Warning Issued

People living on the Pacific Coast of southern Mexico awoke to the earth trembling this morning, followed by a startling tsunami warning after a 7.4 magnitude earthquake hit in the state of Oaxaca. That’ll get you out of bed. Fox News reports that the United States Geological Survey (USGS) said the quake had a preliminary magnitude of 7.4 and struck at 11:29 a.m. […]

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