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Strategies & Market Trends : Taking Advantage of a Sharply Changing Environment -- Ignore unavailable to you. Want to Upgrade?


To: teevee who wrote (4229)2/5/2022 3:16:25 PM
From: Doug R1 Recommendation

Recommended By
3bar

  Respond to of 6354
 
EQ Magnitude 7.0 to 7.9 ---- 10 yr. avg (2011 - 2020) = 13.5
Excluding megaquakes (8 - 9.9) 7.0 to 7.9 is the category where 2021 was numerically closest to average.
On a % basis it's 18.5% above the previous 10 yr. avg.
It will be the category to watch this year.

8 - 9.9 - 10 yr. avg (2011 - 2020) = 1
2021 up 3x --- In itself may be seen as an outlier year.
Or not...
7.0 to 7.9 - 10 yr. avg (2011 - 2020) = 13.5
2021 up 18.5%
.
6 - 6.9 avg = 129
2021 up 9.3%
.
5 - 5.9 avg = 1595.6
2021 up 28%

Total 2021 quakes are 2nd highest in 11 yrs.
Are earthquakes increasing? One could say yes.

"The year 2021 was a very active period for global seismicity, with 19 major earthquakes, three of which were over 8.0, and was also the most seismically active since 2007. There were a total of 2,474 fatalities, with the majority from a M 7.2 in Haiti. Fatalities occurred in every month of the year."


en.wikipedia.org

The percent disparity between 5 to 5.9 and 6 to 6.9 frequency delta may be a result of USGS intentionally downgrading low sixes back into the fives.