Electronic Supplement to
Semiannual Earthquake Periodicity

by Patrick H. McClellan

Table S4. M ≥ 6.4 Events Excluded from the Southern-California-Region Sample and the Reason for Exclusion

Date	Time, GMT (hh:mm:ss.ss)*	Latitude (°)	Longitude (°)	Magnitude†	Source‡	Reason§
28 May 1892	11:15:99.99	33.20	−116.20	6.50	UCERF2	1
28 June 1992	15:5:30.7300	34.2030	−116.827	6.60	UCERF3	1
21 October 1942	16:22:11.9800	32.9753	−115.785	6.40	UCERF3	1
24 January 1903	5:0:99.99	31.50	−115.00	6.60	UCERF2	3
21 November 1915	0:13:42.00	32.00	−115.00	6.60	UCERF2	3
29 November 1852	20:0:99.99	32.50	−115.00	6.50	UCERF2	3

“Northern” and “southern” California regions are delimited at latitude 36.5° N.

* 99 denotes the time unit value is unavailable.

† Magnitude type as given in the source.

‡ Source is the catalog version from which earthquake record was taken (UCERF2 is Felzer and Cao, 2008; UCERF3 is Felzer, 2013).

§ Reasons for exclusion: 1, aftershock denoted in UCERF catalog; 3, below magnitude–completeness threshold for space–time volume (Felzer, 2008).

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