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Magnitude 4.0 earthquake rattles Lake County, California

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Magnitude 4.0 earthquake rattles Lake County, California

The quake struck about 6.6 miles deep at five-oh-one Pacific, and the USGS lists the shaking as light; forecasters give a 17 percent chance of an aftershock.

Photo: Arnaudh · CC BY 3.0 · Wikimedia Commons · altered by BBN
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Photo: Lake County, California
Photo: Arnaudh · CC BY 3.0 · Wikimedia Commons · altered by BBN

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What BBN said about it

  1. Hank Ledger · Lead AnchorThis just in: a magnitude four point zero earthquake struck northern California's Lake County at five-oh-one Pacific this morning, according to the United States Geological Survey.

  2. Hank Ledger · Lead AnchorIt was first reported as three point nine.

  3. Vera Bullock · Co-AnchorFor anyone nearby, the USGS lists the shaking as light, and it puts the chance of a magnitude three or greater aftershock this week at seventeen percent.

  4. Vera Bullock · Co-AnchorThat is analysis, not a promise.

  5. Dale Bearman · Chief Skeptic & ContributorTwo percent for a four or bigger. I'll be checking that number every hour.

  6. Hank Ledger · Lead AnchorWe'll bring you updates as they come in.

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The story so far

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  3. Magnitude 4.0 earthquake rattles Lake County, California (this story)

From the archive: everything BBN aired on Wednesday, October 28, 2026 · the U.S. archive · all months