Poking around on Google Earth I find the point of an earthquake

Date: 1973/8/20
Magnitude: 3.89999999999999991118

that's pretty precise, it seems to me

On Jan 12, 7:20 pm, Charles <ckr...@SPAMTRAP.west.net> wrote:
Poking around on Google Earth I find the point of an earthquake

Date: 1973/8/20
Magnitude: 3.89999999999999991118

that's pretty precise, it seems to me

Hi Charles,

I agree, it is precise. But is the location? During the past year
I've seen epcienters changed as often as three times and it makes one
wonder sometimes, how close is close?

And there's that other bit where I found a quake I was looking for in
a 160km radius was actually placed elsewhere in a search I performed
for quakes in a 1000km radius.

It leaves one shaking their head for sure.

Petra

I agree, it is precise. But is the location? During the past year
I've seen epcienters changed as often as three times and it makes one
wonder sometimes, how close is close?

In article <2724dfbe-5f89-4129-bb23-ab2758964...@s8g2000prg.googlegroups.com>,

Petra  <petras...@hotmail.com> wrote:
I agree, it is precise.

Any number with a large quantify of digits is precise.

But is the location? During the past year I've seen epcienters
changed as often as three times and it makes one wonder
sometimes, how close is close?

They do publish an indication of the location quality and additional
processing changes that quality. Why does that surprise you?

I agree, it is precise.

But is the location? During the past year I've seen epcienters
changed as often as three times and it makes one wonder
sometimes, how close is close?

Petra <petras...@hotmail.com> wrote in news:178e2967-fc91-4414-929f-
3fec67d59...@u10g2000prn.googlegroups.com:

It's not surprising, but when you're the predictor those little
changes may mean a lot.

"Hey!! An earthquake of unknown magnitude just occured sometime
today somewhere on earth. That gives me a hit!!!"

...magnitude, location, and time are determined...

...it's now not quite a 'hit'....

"Why do they keep changing the magnitude and location? It must
be some conspiracy!! I predicted that quake and they don't want
the world to know it!!"

[that is an extreme example, but gives the point]

Brian
--http://www.skywise711.com- Lasers, Seismology, Astronomy, Skepticism
Seismic FAQ:http://www.skywise711.com/SeismicFAQ/SeismicFAQ.html
Quake "predictions":http://www.skywise711.com/quakes/EQDB/index.html
Sed quis custodiet ipsos Custodes?

It's not surprising, but when you're the predictor those little
changes may mean a lot.

You lost me on that one.... what point?

My point is that at the time an earthquake rolls in it may match a
prediction perfectly in date, magnitude and time, but after several
changes it might not make it on anything except the date, so these
changes over time do upset the applecart and could cost a lot
sometimes.

It's not surprising, but when you're the predictor those little
changes may mean a lot.

You lost me on that one.... what point?

Poking around on Google Earth I find the point of an earthquake

Date: 1973/8/20
Magnitude: 3.89999999999999991118

that's pretty precise, it seems to me.

In article <3e2c72cc-5083-4739-a41f-424de3fa7...@s19g2000prg.googlegroups.com>,

Petra  <petras...@hotmail.com> wrote:
You lost me on that one.... what point?

The point is you being a kook, Petra. This newsgroup seems
to attract them.

I guess you're right, all of us kooks have professional jobs

Charles wrote:
Poking around on Google Earth I find the point of an earthquake

Date: 1973/8/20 Magnitude: 3.89999999999999991118
that's pretty precise, it seems to me.

Look at the date. That's probably a computer glitch, or someone enamored
of their new pocket calculator.

Pocket calculators, in case you didn't know, can generate up to 14
places east of the decimal point, but because of the binary to decimal
conversion error, nothing beyond 5 or 6 means anything but a numerical
artifact. I bet in 1973, seismic computers were such a new tool, people
were still trusting the box. Precision does not equal accuracy.

The other day, my husband did a calculation from a digital people
counter which 'proved' that 20/4 = 4.9999999998. This small error,
incremented over tens of thousands of people, was resulting in an errant
count. He even did the math for the people with the people counter, and
they wanted to believe the box over their own knowledge of 4th grade
division.

About 25 years ago digital displays matured and suddenly had a major