Electronic Supplement to
Semiannual Earthquake Periodicity

by Patrick H. McClellan

Table S8. Solar Semiannual (Ssa) Phase of 6.2 ≥ M ≥ 6.5 Earthquakes in the Salton Trough and Gulf of California from 1 January 1974 to 1 April 2014

Date	Time, UTC (hh:mm:ss.ss)	Latitude (°)	Longitude (°)	Magnitude*	Phase†
8 July 1975	9:37:27.3	29.459	−113.346	6.5	0.586
24 November 1987	13:15:56.4	33.01	−115.84	6.5	0.343
3 October 2002	16:8:29.62	23.324	−108.53	6.5	0.058
15 October 1979	23:16:54.5	32.633	−115.333	6.4	0.124
9 June 1980	3:28:18.9	32.22	−114.985	6.4	0.433
12 March 2003	23:41:32.92	26.556	−110.587	6.4	0.955
31 May 1974	14:4:59.9	27.226	−111.238	6.3	0.384
25 September 2012	23:45:24.94	24.666	−110.173	6.3	0.019
22 June 1991	0:30:26.48	23.915	−108.549	6.2	0.498
30 June 1995	11:58:56.88	24.688	−110.228	6.2	0.544

* Magnitude type as given in ANSS catalog.

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

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