Site	Location	City, State	Lat.	Lon.	Elev. (m)	Start Date	End Date	Primary Data Center	Secondary Data Center
BRIB	Briones Reservation	Orinda, CA	37.92	-122.15	263.2	8/6/1993	3/19/2019	NCEDC
HELB	Miramonte	Miramonte, CA	36.68	-119.02	1105.3	12/19/2013	11/5/2020	NCEDC
MHCB	Lick Observatory	Mt. Hamilton, CA	37.34	-121.64	1261.0	6/14/1996	8/12/2022	NCEDC
MONB	Monument Peak	Milpitas, CA	37.49	-121.87	750.4	7/31/1998	1/31/2022	NCEDC
NUNE	Nunes	El Sobrante, CA	37.96	-122.25	96.2	10/6/1993	12/11/1999
PTRB	Point Reyes Lighthouse	Point Reyes National Seashore, CA	38.0	-123.01	145.7	8/14/1998	3/5/2021	NCEDC
SBRN	San Bruno	Brisbane, CA	37.69	-122.41	-2.1	3/5/2003	4/15/2011	NCEDC
SODB	Soda Springs	Los Gatos, CA	37.17	-121.93	985.7	5/18/1996	1/13/2020	NCEDC
SRB1	Seismic Replacement Building	Berkeley, CA	37.87	-122.27	54.4	11/14/2006	05/21/2022	NCEDC
SUAA	Stanford	Stanford, CA	37.43	-122.17	20.4	4/21/1994	2/5/2003
THAL	Thales Navigation	Santa Clara, CA	37.35	-122.95	-2.5	1/3/2003	3/22/2007
MUSB	Musick Mountain	Shaver Lake, CA	37.17	-119.31	2042.6	11/5/1997	9/10/2008
YBHB	Yreka Blue Horn Mine	Yreka, CA	41.73	-122.71	1065.7	10/24/1996	3/18/2022	NCEDC