Number of large earthquakes before and after eclipses
Posted by Lowell on June 25, 2001 at 10:57:02:

Now there is a question which shows some insight and thought -just
the kind I like to answer.
Following are the number of earthquakes of Mw>=7.0 with delay times
before and after total and annular solar eclipses of up to 31 days.
The first column is the number of days between a solar eclipse
and an earthquake of Mw>=7. The second column is the number of
such earthquakes with the given time difference between their
occurrence and the total solar eclipse. For example, at -24 (24 days
before solar eclipses) there were 13 earthquakes of Mw>=7 while
at 25 (25 days after solar eclipses) there were 10 such earthquakes.

These types of data are necessary to answer the question raised
regarding the relationship of solar eclipses to large earthquakes.
In my opinion, there is no excessive triggering of such earthquakes
around the time of eclipses (-3 days to 3 days). This concurs
with the data cited by Roger Hunter and Jim Berkland.

Table 1: Number of Mw>=7 earthquakes per days before and after
total or annular solar eclipses (1500-2001)

Days # earthquakes
Before Mw>=7
or 1500-2001
After
-31 5
-30 13
-29 7
-28 8
-27 12
-26 6
-25 12
-24 13
-23 9
-22 15
-21 9
-20 10
-19 12
-18 11
-17 13
-16 8
-15 9
-14 8
-13 7
-12 11
-11 15
-10 14
-9 16
-8 6
-7 5
-6 11
-5 3
-4 7
-3 8
-2 11
-1 14
0 11
1 9
2 9
3 16
4 7
5 7
6 11
7 11
8 14
9 7
10 6
11 15
12 10
13 8
14 4
15 10
16 18
17 14
18 14
19 10
20 11
21 7
22 8
23 11
24 12
25 10
26 20
27 7
28 7
29 8
30 12
31 5

Looks like moving out is not necessary after all.


Follow Ups:
     ● Re: Number of large earthquakes before and after eclipses - Cathryn  11:59:57 - 6/25/2001  (8142)  (1)
        ● Re: Number of large earthquakes before and after eclipses - Lowell  12:16:06 - 6/25/2001  (8144)  (1)
           ● Re: Number of large earthquakes before and after eclipses - Cathryn  12:40:19 - 6/25/2001  (8148)  (0)