When I watch USGS’s maps https://earthquake.usgs.gov/earthquakes/recenteqscanv/
I always see a lot of movement near the Southern California Mexico border.

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look at the recent quakes in los angeles? are these pre shocks for a much larger earthquake?
do u think a mag 7+ is going to hit l.a. soon? look at all those pre hscocks!

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because the earthquake in baja , california that happened on april 4th 2010 is still having aftershocks here are some links i just wanna know is this normal?



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I’m sorry to hear about it. I hope you’re all okay.

I know it’s wasn’t a mega quake or something, but those at the center of it must be pretty shaken up.
oops – IT wasn’t …. sorry, typo!

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Japan has had several recent smaller earthquakes ,and these fish are said to be "a messenger fish" warning of bigger earthquakes..
So are they just having these earthquakes as a residual effect from Chile,and Haiti . Or do you think that these are all small pre "Big One" earthquakes?


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I am looking specifically for maps that illustrate the the extent of faulting (the area of the fault on which slip occurred) for the following historical Earth quakes:

1.1906 San Francisco earthquake
2. The 1857 Fort Tejon earthquake
3. The 1989 Loma Prieta earthquake
4. The 1992 Landers earthquake
5. The 1994 Northridge earthquake


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I would like to find a publication with maps of these three types of events with information on each event, such as date, size, location, effects, etc…

It would mainly be about significant events that have been proven or documented.

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My boss has asked me to research the effects of having small earthquakes back to back. Any ideas of what this means or what it ‘could’ mean? Please dont send me links to pages of maps of CA with the earthquakes and their magnitude ect. Ive got all of that info.
Please answer with a link where you found the info.

Thanks so very much!

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please help me how can make it. Any major 5 diversity. Give me pictures and maps also. Give report on man’s interference, how it results in soil erosion droughts, faulty constructions on hills, landslides, Conclusions, Impact during cyclones and earthquakes.

Don’t forget to put your name in the answer. I’ll be putting it in the References and Sources Column.
Thank You.

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I live in Washington state, and receive notifications from the USGS about earthquakes in the Pacific Northwest area. There have been a series of quakes off the Oregon coast over the past 10 days or so – the largest was a 5.2. I’m not a geologist by any stretch of the imagination, but I was watching the news last night, and a short piece on the quakes mentioned that this kind of series of quakes is usually associated with volcanic eruptions. Of course, right now, there IS no volcano in that region; is it possible that we’re about to see a new one begin? I’d be curious to know what people educated in this sort of science think – thanks!
Btw – I’m not "worried" about it or anything; I’m just wondering if it’s POSSIBLE. I certainly think it would be fascinating to see if it occurs, but I have no idea if that’s possible. I do remember MANY years ago (I’m 53) the process of a volcano (in the Atlantic, I think) turning into an island; it was documented in something like Life or National Geographic, but I was much too young at the time to do much more than look at the pictures.
Ok – yeah, I know about the Cascade volcanoes, of course (I can look out my window and see Rainier, after all…). I guess it’s just that the USGS folks are saying there’s no volcano in the immediate area of the quakes, so I’m wondering if it’s reasonable at all to think that another one MIGHT form. Of course, I know it would take an EXTREMELY long time to form to the size of a Rainier or a St. Helens, but *could* this be the start of a new one?

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