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Two of the biggest US earthquake faults might be linked
Nature ^ | 05 December 2019 | Alexandra Witze

Posted on 12/09/2019 9:15:28 AM PST by Red Badger

Provocative analysis of sea-floor cores suggests that quakes on the Cascadia fault off California can trigger tremors on the San Andreas.

Two of North America’s most fearsome earthquake zones could be linked.

A controversial study argues that at least eight times in the past 3,000 years, quakes made a one–two punch off the west coast of the United States. A quake hit the Cascadia fault off the coast of northern California, triggering a second quake on the San Andreas fault just to the south. In some cases, the delay between the quakes may have been decades long.

The study suggests that Cascadia, which scientists think is capable of unleashing a magnitude-9 earthquake at any time, could set off quakes on the northern San Andreas, which runs under the San Francisco Bay Area.

Several earthquake scientists told Nature that more work is needed to confirm the provocative idea. Researchers have long considered the two faults seismically separate.

Chris Goldfinger, a geologist and palaeoseismologist at Oregon State University in Corvallis, will present the findings on 13 December at a meeting of the American Geophysical Union in San Francisco. “This is mostly a circumstantial case,” he says. “I don’t have a smoking gun.”

(Excerpt) Read more at nature.com ...


TOPICS: History; Outdoors; Science
KEYWORDS: california; cascadia; cascadiafault; catastrophism; earthquake; earthquakes; fault; notmeinfaulten; notmyfault; oregon; quake; quakes; sanandeas; sanandreasfault; tsunami; tsunamis; washingtonstate
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To: Red Badger

Not my fault


41 posted on 12/09/2019 2:35:55 PM PST by Darksheare (Those who support liberal "Republicans" summarily support every action by same.)
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To: Darksheare

42 posted on 12/09/2019 2:37:21 PM PST by Red Badger (Against stupidity the gods themselves contend in vain............)
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To: Red Badger

Thanks!


43 posted on 12/09/2019 3:01:49 PM PST by Darksheare (Those who support liberal "Republicans" summarily support every action by same.)
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To: SunkenCiv; teletech

Well, it’s not your fault they’re not at catatrosphic fault. Yet.


44 posted on 12/09/2019 3:28:11 PM PST by Robert A Cook PE (I can only donate monthly, but ABCNNBCBS donates every hour, every night, every day of the year.)
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To: RayChuang88

What I have read on Seattle and Portland is ALL the old brick buildings will fall as will the older bridges.


45 posted on 12/09/2019 3:37:29 PM PST by Cold Heart (.)
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To: Robert A Cook PE
Associative memory (plus approaching senility) calls for another musical interlude:
It's My Fault, Darling (Remastered)

It's My Fault, Darling (Remastered)

46 posted on 12/09/2019 4:18:31 PM PST by SunkenCiv (Imagine an imaginary menagerie manager imagining managing an imaginary menagerie.)
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To: SunkenCiv

bttt - ;o)~


47 posted on 12/09/2019 4:23:13 PM PST by Liberty Valance (Keep a Simple Manner for a Happy Life :o)
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To: Red Badger

I hate science articles that say, “may have been”. It makes me think the article is nothing more than a plea for more research money.


48 posted on 12/09/2019 8:34:12 PM PST by aimhigh (THIS is His commandment . . . . 1 John 3:23)
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