Above might be a site of interest as well.
I still think it’s accurate to say that 2010 has been an extraordinary year for significant seismic activity.
I pull all my data from:
this is a powerful tool that allows users to select very specific activity, depth, magnitude date ranges and see all the events that fall into their select criteria.
When I look at 2010, for recorded events of magnitude 6 or greater, there have been 127 events year to date.
If I annualize that number (# of events/number days passed already)*365 days in the year – I get a projection that there will be about 199 events of magnitude 6 or greater this year assuming the trend holds up. I started doing these projections back in March – and all year the trend has held at projecting between 220 and 200 events for the year.
This is really significant, because if I look at each of the last twenty years of IRIS data, the most ever recorded # of events greater than 6 in one year was 154 in 2007. A typical year over the last twenty has been somewhere around 115-120 events. So I ask, when are we going to admit that an increase of 30% over the previous maximum or almost 70% over the norm is a significant increase in significant earthquakes?
Update for 2011:
By the end of 2010, IRIS recorded 153 magntitude 6+ events worldwide. One fewer than the previous maximum, which ocurred in 2007. Is it a coincidence that the previous year with a lot more earthquake activity was the same that the ENP was signed – I don’t know, perhaps it was.
2011 looks to be another record year for significant seismic activity. As of today, June 8th- there have been 100 magnitude 6+ events recorded worldwide. Remember that the typical year over the last 20 was between 115-120. I don’t think this data should be just ignored, and its not a case of more seismographs around the world (the majority of which have been online prior to 2000). I will go on record as saying earthquakes are definitely increasing – though how much more they will increase before the great earthquake of the Lamb’s wrath to come, I don’t know.