Magnitude 6 earthquake hits off US west coast

Photo: Craig Mitchelldyer Archives Associated Press The epicenter of the earthquake was off the coast of Oregon.

Agence France-Presse in Los Angeles

Posted yesterday at 6:30 PM

• United States

A magnitude 6.0 earthquake struck off the west coast of the United States on Wednesday, without causing major damage or a tsunami, officials said.

The epicenter of the quake was located 173 miles (279 km) from the city of Bandon, Oregon, according to the U.S. Geological Survey (USGS).

There were no immediate reports of damage and “it is likely that no structures are affected in the area,” the USGS said.

“There is no tsunami danger,” the U.S. Weather Service added on X.

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The west coast of the United States borders the Pacific Ring of Fire, a alignment of volcanoes that coincide with tectonic plates and seismic faults.

Oregon lies along the Cascadia Fault.

The fault hasn't produced a major earthquake since the 18th century. But scientists say it has the potential for an earthquake even stronger than the so-called “Big One,” feared in California along the San Andreas Fault.

Wednesday's quake comes as authorities in Portland, Oregon's most populous city, are holding a two-day test to assess the city's preparedness for a potential major earthquake, according to local media.

“We're in a period where we could have another one at any time, so we're preparing,” Amanda Westervelt, operations coordinator for Portland's Office of Emergency Management, told local television station KATU2.

Fear of the 'Big One'

The West Coast of the United States has experienced several significant earthquakes in recent months, but without major consequences.

In 2024, California recorded the highest seismic activity in decades, according to seismologists.

The series of quakes has rattled the nerves of some residents, who fear the “Big One.” But scientists say these medium-sized earthquakes are not a harbinger of a disaster in the making.

In a century of seismological observation, “no one has observed statistically significant patterns before the big earthquakes occur,” seismologist Susan Hough reminded the Los Angeles Times.

California authorities have used the increased activity to remind residents to be prepared to respond, taking shelter under tables and away from windows in the event of an earthquake.

They also recommend always having an emergency bag prepared, with water, non-perishable food, flashlights, a portable radio and a first aid kit.