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6.8 Quake off Northern California

6.8 Quake off Northern California

6.8 Quake off Northern California

(OP)
Here's a link to the USGS info: USGS Link.

Not too close to any major cities but I wonder if there will be follow-up events along the fault line further south.

RE: 6.8 Quake off Northern California

this particular area has frequent events of various magnitudes. not sure it has ever been linked to events further south. It is really not close to any urban area. It is near several faults and is fairly active. I can remember at least half a dozen or so in the last 25 years just off the coast from Petrolia.

http://en.wikipedia.org/wiki/Mendocino_Triple_Junc...

RE: 6.8 Quake off Northern California

This is no little Earthquake to ignore.

It's at the southern tip of the Cascadia Subduction Zone and the Juan De Fuca plate. A larger one in this location could rip the whole fault line all the way to Vancouver Island. This scenario would be "the big one".

Not good... for me, among others.

Mike McCann
MMC Engineering

RE: 6.8 Quake off Northern California

My USGS Link showed it as a 6.9, 7KM deep with a vertical uncertainty of about 25 KM, which seemed very strange to me. Real hard to get an earthquake 18 KM up into the atmosphere. shocked

Time to update my battery stockpile. thumbsup2

Mike McCann
MMC Engineering

RE: 6.8 Quake off Northern California

There were large underwater Earthquakes off the coast of Lyttleton (the "Harbour" side of Christchurch) prior to the series of large Christchurch EQs in New Zealand...

Earthquakes beget earthquakes... Mike's right; None are dismissable. I think our friends on the West Coast of Canada & the US may very well be in for the big one sooner rather than later.

RE: 6.8 Quake off Northern California

Quote:

My USGS Link showed it as a 6.9, 7KM deep with a vertical uncertainty of about 25 KM, which seemed very strange to me. Real hard to get an earthquake 18 KM up into the atmosphere.

it is difficult to monitor sub sea activity since instrumentation is all on land. you cant triangulate very accurately.

The last event was in 1700 and the average recurrence interval of Cascadia megathrust events is estimated to be 550-years. Not sure how accurate that number is, but it could certainly happen in the next few centuries.

http://www.cascadiahazards.org/index.php?option=co...

RE: 6.8 Quake off Northern California

(OP)
Another quake this morning in LA - 4.4 magnitude. I wonder if it is related to the March 10th quake further north?

RE: 6.8 Quake off Northern California

I firmly believe that all quakes are related, someway. It's all energy based in my opinion.

Mike McCann
MMC Engineering

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