Electronic Supplement to
Semiannual Earthquake Periodicity

by Patrick H. McClellan

Table S10. Solar Semiannual (Ssa) Phase of M ≥ 6.0 Earthquakes along the Rivera Transform from 1 January 1900 to 1 April 2014

Date	Time, UTC (hh:mm:ss.sss)	Latitude (°)	Longitude (°)	Magnitude*	Phase†
10 April 1906	21:18:00.000	20	−110	7.2	0.109
16 November 1925	11:55:01.000	18.38	−106.81	7	0.298
1 May 1997	11:37:34.000	18.86	−107.37	6.9	0.225
6 December 1965	11:34:53.000	18.92	−107.19	6.8	0.411
2 January 1931	09:49:04.000	18.61	−107.21	6.6	0.568
29 September 1950	06:32:20.000	19	−107	6.6	0.031
20 October 1972	08:17:46.000	18.71	−106.77	6.5	0.152
24 September 2009	07:16:20.260	18.83	−107.34	6.4	0.008
1 November 1980	22:52:19.000	18.86	−107.89	6.3	0.223
9 May 1983	20:09:16.000	19.97	−109.46	6.3	0.266
31 May 1995	16:08:38.000	18.91	−107.53	6.3	0.384
1 November 2011	12:32:00.430	19.83	−109.21	6.3	0.216
27 June 2005	11:35:45.000	18.84	−107.32	6.2	0.531
24 August 2010	02:11:59.090	18.8	−107.19	6.2	0.839
1 June 1981	15:12:50.000	18.79	−107.05	6.1	0.391
14 November 1987	22:23:02.000	19.69	−108.9	6.1	0.290
7 December 1986	16:56:40.000	18.85	−107.2	6	0.417
21 November 1999	06:46:22.000	18.72	−107.18	6	0.325
17 July 2003	19:57:18.000	18.71	−106.97	6	0.637
4 April 2006	02:30:28.000	18.76	−106.99	6	0.077

* Magnitude type as given in ANSS catalog.

† Phase is the fraction of the cycle elapsed between bounding equinoxes.

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