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Originally posted by detachedindividual
I agree that the frequency of quakes on this graph is probably more to do with development in technology.
I'd be confident in saying there will likely be a similar sudden growth when we look at statistics for information gathering, development of registering equipment, resources spent on monitoring and research, and even such basic things as global use of internet communication.
This graph has to be taken with a big leap of faith while considering all the other factors that make quake reporting and analysis more efficient in recent years.
That still doesn't cancel out the possibility that there has been a rise in number, there might have been. I just think this graph shows the bare bones of it without filtering for all eventualities affecting the resulting data.
And am I right in saying this was produced by people employed in this field? They are going to want to show evidence that keeps them in a job and gets them more funding, that's the way all these things go right?
Originally posted by downtown436
Here is a link to the data they used for the chart.
earthquake.usgs.gov...
Originally posted by HIFIGUY
The OP chart represent measured quakes vs the number that actually may have happened.
What the OP chart shows me is the integration of worldwide reports as opposed to an increase in modern day quakes.
Peace
Originally posted by Blaine91555
After reviewing the USGS data this was taken from, it is apparent that the reported earthquakes over magnitude 6 has indeed increased greatly as communications technology, seismological instruments and information dissemination developed.
This may be a bit of a red-herring because of the above. We need to see how it correlates to the placement of measurement devices around the world. Has there been a large increase in ability to measure earthquakes in uninhabited or undeveloped areas going on at a similar rate to the increase?
Originally posted by Anonymous ATS
I don't know about the earthquakes in th early 20c, but you can't deny that earthquakes have increased dramaticly in the past 18 years. Here's an example. Since 1990, the number of earthquakes have increased almost 80%! What possibly could it cause this?
www.infoplease.........