Major 2020 Alaska quake triggered neighboring 2021 temblor

A study of two powerful earthquakes in adjacent areas off the Alaska Peninsula in 2020 and 2021 shows a connection between the two. It also suggests they may be a part of an 80-year rupture cascade along the fault.

Volcanoes at fault if the Earth slips

The 2016 Kumamoto earthquakes shocked inhabitants of the western island of Kyushu, causing hundreds of casualties and serious damage to vital infrastructure. The epicenter of the quake was traced to the Futagawa fault in a ...

Seafloor spreading has been slowing down

A new global analysis of the last 19 million years of seafloor spreading rates found they have been slowing down. Geologists want to know why the seafloor is getting sluggish.

Hawaiian-Emperor undersea mystery revealed with supercomputers

The Hawaiian-Emperor seamount chain spans almost four thousand miles from the Hawaiian Islands to the Detroit Seamount in the north Pacific, an L- shaped chain that goes west then abruptly north. The 60-degree bend in the ...

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