ST Alpha - ""Since 1900, there have been approximately 18 earthquakes of 7.0 or greater magnitude per year. (One usually crosses the 8.0 barrier.) There are no " (Reading a Post)

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In response to "So we are in a "hot period" for earthquakes statistically right? It's not just perception. -- nm" by Dano

"Since 1900, there have been approximately 18 earthquakes of 7.0 or greater magnitude per year. (One usually crosses the 8.0 barrier.) There are no

Posted by mara Apr 6 '10, 16:02

data suggesting an upward trend in that rate."

Responses:

It's April and there have been 7 that are 7.0+ so far this year. That puts us on target for 21. I'm sure that's within one standard deviation of mean. -- nm - Beryllium Apr 6, 16:09 3
- Or there could be none for the rest of the year. If you want to compare "this year so far," compare it with other 4-month periods. -- nm - mara Apr 6, 16:11 2
  - from July 2009 to October 2009, it looks like it's about dead even with the current 4 month period. Anchored by a Sept 2 7.0 in Java -- nm - Beryllium Apr 6, 16:20 1
    - Sure, but I'll bet 4- or 10-month periods of more than average (and less than average) numbers are common since 1900. -- (link) - mara Apr 6, 16:23
Maybe it's a function of where the recent ones have it. It does seem like more big ones. -- nm - Dano Apr 6, 16:06
Is it odd that the tectonic shifts seem to be bouncing around the ring of fire like a combination lock? - Beryllium Apr 6, 16:06

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