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Portland lies near the Cascadia Subduction zone, where the Juan de Fuca plate is diving beneath the North American plate. The Gales Creek fault, which is a forearc fault between the spot where the plates meet and a chain of volcanoes that links it to the subduction zone, could rupture with a major earthquake, the new study finds.

Fault near Portland could unleash a major earthquake

By Stephanie Pappas published

The Gales Creek Fault in northwest Oregon has set off some temblors before recorded history.

Earthquakes
san andreas fault

Ultradeep melting rocks drive invisible quakes beneath San Andreas Fault

By Stephanie Pappas published

The quakes can't be felt, but they may be linked to the regular magnitude-6 temblors on the fault.

Earthquakes
a view of the Romanche ridge in the Mid-Atlantic

Weird 'boomerang' earthquake recorded for the first time

By Stephanie Pappas published

Earthquakes
A 7.8-magnitude earthquake struck off the Alaskan coast on July 22, 2020.

Powerful 7.8-magnitude earthquake strikes off Alaska coast

By Jeanna Bryer published

Earthquakes
California Hills seen near the San Andreas Fault in California.

Weird, Z-shaped faults could trigger a large earthquake on California's San Andreas Fault

By Laura Geggel published

A big earthquake at Ridgecrest could trigger the Garlock fault, which would in turn trigger the San Andreas.

Earthquakes
A magnitude 7.4 earthquake struck the southern coast of Oaxaca, Mexico on June 23, 2020

Powerful 7.4 earthquake rocks southern Mexico, killing 1

By Brandon Specktor published

A powerful magnitude 7.4 earthquake struck the southern coast of Oaxaca, Mexico this morning, killing at least one person.

Earthquakes
The magnitude-6.5 earthquake happened near the Nevada-California border.

Magnitude-6.5 earthquake in Nevada has a long history of temblors

By Laura Geggel published

Earthquakes
A map showing the area of impact (the orange and yellow regions were hit hardest).

A magnitude 5.7 earthquake just slammed Utah, the state's largest in nearly 30 years

By Brandon Specktor published

A magnitude 5.7 earthquake struck northern Utah this morning. It was the state's largest quake since 1992.

Earthquakes
earthquakes, slow earthquakes, backwards earthquakes, seismology, geophysics, cascadia subduction zone, cascadia fault line, pacific northwest earthquakes

Silent earthquakes are tied to changes in fluid deep below Cascadia's fault

By Stephanie Pappas published

Fluid pressures in the Cascadia subduction zone are linked to regular, imperceptible earthquakes.

Earthquakes
The collapsed wall of the ruins of an iconic landmark lighthouse can be seen in Guanica, Puerto Rico, on Jan. 6, 2020, after it was destroyed by an earthquake.

Earthquake Forecast for Puerto Rico: Dozens More Large Aftershocks Are Likely

By Richard Aster published

Multiple strong and damaging earthquakes are wreaking havoc on Puerto Rico. And geoscientists forecast dozens more strong aftershocks are likely in the area.

Earthquakes
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