You are not logged in.
*Interesting item from space.com's "Astronotes":
"Disappearing Glaciers May Trigger Big Earthquakes
A new study of satellite data and other evidence suggests rapidly melting glaciers in Alaska could allow the land literally to lift, generating large earthquakes.
Many glaciers in southern Alaska have shrunk or disappeared over the past century. One of the dozen or so major plates that makes up Earth's crust dives under the Alaskan coast, creating the soaring mountains there. As the weight of ice diminishes, the plate can rise in sudden shifts that would set the Richter Scale rattling.
According to the study, a 7.2 temblor in 1979, called the St. Elias earthquake, was prompted by receding glaciers. That conclusion was based on how much ice had melted since the last major temblor in the region and the amount of instability that the reduced weight would have caused.
'In the future, in areas like Alaska where earthquakes occur and glaciers are changing, their relationship must be considered to better assess earthquake hazard, and our satellite assets are allowing us to do this by tracking the changes in extent and volume of the ice, and movement of the Earth,' said Jeanne Sauber of NASA's Goddard Space Flight Center.
The study appears in the July issue of the Journal of Global and Planetary Change."
--Cindy
We all know [i]those[/i] Venusians: Doing their hair in shock waves, smoking electrical coronas, wearing Van Allen belts and resting their tiny elbows on a Geiger counter...
--John Sladek (The New Apocrypha)
Offline
A 7.8 magnitude earthquake struck Turkey and Syria
Turkey leader acknowledges earthquake relief problems as death toll passes 15,000
https://www.reuters.com/world/middle-ea … 023-02-08/
Syrian Village Floods After Quake Damages Dam
https://www.msn.com/en-us/news/other/wa … r-AA17iHuM
earthquake death toll climbs beyond 20,000 on fourth day of rescue efforts
https://www.houstonchronicle.com/news/w … 774468.php
1960 Valdivia earthquake and tsunami or Terremoto de Valdivia or the Great Chilean earthquake on 22 May 1960 was the most powerful earthquake ever recorded. Various studies have placed it at 9.4–9.6
A nine point one hit Japan in year 2011 Tohoku earthquake and tsunami off the coast of Japan, Sendai offshore epic center. The tsunami caused the Fukushima Daiichi nuclear disaster, primarily the meltdowns of three of its reactors, the discharge of radioactive water in Fukushima and the associated evacuation zones affecting hundreds of thousands of residents.
United States, Alaska 1964 is the largest earthquake ever recorded in North America and the second largest in history
and in non-Earthquake news
'Glacier lakes swollen by global warming threaten millions'
https://uk.news.yahoo.com/glacier-lakes … 38909.html
Last edited by Mars_B4_Moon (2023-02-09 17:45:52)
Offline
Stunning Discovery: Equatorial Relict Glacier Uncovered on Mars
https://scitechdaily.com/stunning-disco … d-on-mars/
The preservation of water ice at shallow depths and low latitudes on Mars would have significant implications for both scientific research and human exploration.
Another discussion
'Water in the Valles Marineris: The Grand Canyon of Mars'
https://newmars.com/forums/viewtopic.php?id=10114
Last edited by Mars_B4_Moon (2023-03-20 09:09:30)
Offline
“The Big One”: The Most Powerful Marsquake Ever Detected
Offline