I recently did a bit of digging for seismic data (earthquakes). It seemed like things were getting worse, but what does the hard data say? I found a site at http://www.iris.edu/SeismiQuery/sq-events.htm that provides raw data. I created a Python script to roll it up and do a histogram of over time of strong quakes. The source for that program is at https://github.com/Uberan/seipy .
The disturbing part is the apparent trends. I don’t claim to know about seismology – I am merely creating a visualization of public data from the www.iris.edu site. Please look at the data below and draw your own conclusions. Also feel free to look and/or run the program – I have placed it in the public domain.
One thing I wonder – are we getting better at logging earthquakes so that over time we observe more of them? It would seem that most big quakes are hard to miss, but perhaps this data is skewed by our increasing ability to measure quakes. Is this data somehow incomplete? If someone can vouch for the data or knows why this data may be incomplete, please post.
BTW, you’ll have to click on each graph to enlarge them enough to see the data points.