Event Number 2081

M2.2 m WSW of Daly City, CA - 2021/05/30 09:23:05 37.678 -122.508 M2.2 12.3 4km WSW of Daly City, CA at 2021/05/30 09:23:05 UTC / 2021/05/30 02:23:05 PDT

Error Map and Stations Used to Locate Event

Errors from USGS Location and Magnitude:

EQPROC = 3.0km (1.9 mi)
HYPO2K = 0.5km (0.3 mi) Magnitude = 0.2

USGS Report:

Date       Time       Lat    Lon      Mag    Depth                Location   
-----------------------------------------------------------------------------------
2021/05/30 09:23:05  37.678 -122.508  M2.2  12.3 4km WSW of Daly City, CA

EQPROC Summary:

2081 2021May30  923  5.75  37.6697 -122.5402  4.00 0.11 36.8 46.8 223  4
GLFBZ SHZ PN 01 2021May30  923 13.58 P ?0  42.5  -0.01
ADUB1 SHZ PN 01 2021May30  923 18.22 P ?1  68.2   0.27
B054  EHZ PB -- 2021May30  923 12.63 P ?0  36.8   0.00
B057  EHZ PB -- 2021May30  923 13.34 P ?0  39.8   0.20

HYPO2K Report:

 YEAR MO DA  --ORIGIN--  --LAT N-  --LON W--  DEPTH-M RMS   ERH   ERZ  XMAG1 FMAG1 PMAG GEOID-DEP
 2021-05-30  0923  6.54  37 40.712 122W30.910  4.00  0.13  1.87 13.82        2.00  2.00E    3.98
                                                                                          SOURCE
 NSTA NPHS  DMIN MODEL GAP ITR NFM NWR NWS NVR REMRKS-AVH  N.XMG-XMMAD-T   N.FMG-FMMAD-T  L F X
    4    4  34.4  Emb  219   8   0   4   0   4      -                          4  2.00 E  W W  

 XMAG2-N.XMG2-XMMAD-T-S  FMAG2-N.FMG2-FMMAD-T-S  PREF.MAG-N.PMAG-PRMAD-T DEPDAT NS ZT TYP
                                                     2.00      4  2.00 E     13  4  M CRH
 REGION=                          

 STA NET COM L CR DIST AZM  AN P/S WT   SEC (TOBS -TCAL -DLY  =RES)  WT   SR  INFO  CAL  DUR-W-FMAG-T -AMP-U-PER-W-XMAG-T DE
 B054 PB EHZ -- A 34.4  53  93  P     12.63  6.09  6.06 0.00  0.03  1.07  W  1.000 0.00 17.0   1.93 E                        
 B057 PB EHZ -- A 39.0 354  93  P     13.34  6.80  6.81 0.00 -0.01  1.07  W  1.000 0.00 19.0   2.07 E                        
 GLFBZPN SHZ 01 A 41.3 128  92  P     13.58  7.04  7.20 0.00 -0.16  1.07  W  1.000 0.00 11.0 1 1.55 E                        
 ADUB1PN SHZ 01 A 67.3 135  91  P  1  18.22 11.68 11.42 0.00  0.26  0.80  W  1.000 0.00 25.0   2.37 E                        

Event Files: May 2021