EARTHQUAKE CLOUDS AND
SHORT TERM PREDICTION

Table The interval distribution of the 4.1 San Fernando Earthquake Prediction

No. Selected time Intervals number
  (span >=18) (18-day)
1 81/04/01~83/01/31 654
2 83/07/13~98/05/20 5409
A=   6063
1 81/04/01~83/01/31 654
2 83/07/13~84/06/11 318
3 84/06/13~85/04/02 277
4 85/04/04~91/07/04 2266
5 91/07/06~94/01/16 909
6 94/02/07~94/02/24 1
7 94/02/26~94/05/24 71
8 94/05/26~94/06/14 3
9 94/06/16~95/06/25 358
10 95/06/27~96/03/19 250
11 96/03/21~96/04/30 24
12 96/05/02~97/04/25 342
13 97/04/28~98/05/20 371
B=   5844
P=1-B/A=   3.6%
Note:
  1. 83/02/01~83/07/12: no data.
  2. Specified earthquakes divides two periods 81/04/01~83/01/31 and 83/07/13~98/05/20 into 13 segments that contain no specified earthquake and days more than 17.
  3. Subtracting 17 from a day-span in Column 2 is its corresponding intervals number in Column 3.


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Updated: June 20, 1999 | Webmaster