This is an archive of CompuServe forum messages from 1985 to 1995, as saved in transcripts by John Foust.
Search Results (12 messages)
Earth Science Schools?
Message #124481
Hi Ed: Sure I could give advice or opinions about various grad schools for earth science degrees. To save time, though, give me some more meat first: (1) master's degree? (2) geographic preference? (3) any idea about specialty? this last basically can be answered with (a) environmental sciences (more jobs)…
Gary– are you looking for a list of earthquakes? If so, you can get it free from the U.S.Geological Survey (your tax pennies at work), updated weekly, with California quakes, U.S. quakes, world quakes categories. I don't have the email address or phone number handy, but Doug or someone else…
Hmm, then I won't hold my breath!
Hi Mark, yes I think you're right: for rapid location calculations, wave amplitudes are best. but for useful comparison (esp of major shocks, as you noted), moment is the way everyone is going. And I don't think there has to be a surface rupture; with a well-studied quake, e.g., intermediate…
#118540-
Richter Equation
Message #118793
John, see my note under Richter scale for more on this.
But (sorry to repeat myself from last week), the precise term Richter scale applies strictly only to southern California; earthquakes in other parts of the world (e.g., midwest, Japan, Indonesia, even northern California) correct travel times for different seismic velocities and do NOT use the Richter scale, though they DO…
Aaron, what do you mean by big? Do you mean capable of the biggest earthquakes? If so, what you really want is a list of the biggest earthquakes in historical times, because there may be faults out there that haven't ruptured recently enough for us to know about them. Or…
Mitchell, Doug is right on as usual. The 1964 Alaska EQ was on Good Friday, so that would make it late March or April, I forget the date. But it was such a monster that the earth was ringing like a bell for days afterwards, and it was measured at…
Hi Mitchell, Mark's reply contains the quantitative answer. I thought I'd dress it up a bit (professors tend to indulge) Magnitude scales like the Richter scale [which, BTW, was intended only for use in southern California; other parts of the country and world use DIFFERENT magnitude scales–all are logarithmic, but…
Hi Mark, I must be learning something because your explanation was crystal clear! I will do some more reading and add that to my course this semester. Did you even feel any of that EQ down in San Diego? ANY reports of shaking etc inSan Diego County? We had diddly.…
Frank, even if you get some other observations of strange animal behavior, it doesn't prove anything….until you also keep track of strange animal behaviors at times when there aren't earthquakes, i.e., all of the time. There HAVE been observations of anomalous behavior that probably indicate some sense of vibrations or…
Hi Todd, I missed the beginning of this thread, but what kind of reading material are you looking for? I'm down at San Jose St. (geol prof). If you're after standard journals you can probably find them at SFSU, which has a geology program. More specialized stuff, including a world…