Event Number 1561

M1.9 m NE of Milpitas, CA at 2018/04/05 23:20:43 UTC / 2018/04/05 23:20:43 PDT

Error Map and Stations Used to Locate Event

Errors from USGS Location and Magnitude:

EQPROC = 2.5km (1.5 mi)
HYPO2K = 1.9km (1.2 mi) Magnitude = -0.2

USGS Report:

Date       Time       Lat    Lon      Mag    Depth                Location   
-----------------------------------------------------------------------------------
2018/04/05 23:20:43  37.477 -121.831  M1.9   7.1 9km NE of Milpitas, CA

EQPROC Summary:

1561 2018Apr 5 2320 43.29  37.4977 -121.8208  6.95 0.00 31.2 61.7 158  4
ADUB1 SHZ PN 01 2018Apr 5 2320 49.25 P D0  31.2  -0.00
CMP   SHZ PN 07 2018Apr 5 2320 51.92 P D3  47.0  -0.00
B058  EHZ PB -- 2018Apr 5 2320 57.42 P ?2  80.4  -0.00
B057  EHZ PB -- 2018Apr 5 2320 58.56 P ?2  88.2  -0.00

HYPO2K Report:

 YEAR MO DA  --ORIGIN--  --LAT N-  --LON W--  DEPTH-M RMS   ERH   ERZ  XMAG1 FMAG1 PMAG GEOID-DEP
 2018-04-05  2320 43.80  37 29.63  121W49.92   6.92  0.05  0.87  7.16        2.11  2.11E    6.90
                                                                                          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  30.3  Emb  155   5   2   4   0   4      -                          1  0.00 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
                                                     2.11      1  0.00 E     24  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
 ADUB1PN SHZ 01 A 30.3 206  99  PD    49.25  5.45  5.47 0.00 -0.02  1.78  W  0.999 0.00 21.0   2.11 E                        
 CMP  PN SHZ 07 A 47.9 108  96  PD 3  51.92  8.12  8.29 0.00 -0.17  0.44  W  1.000 0.00 3.00 4 0.30XE                        
 B058 PB EHZ -- A 80.2 163  93  P  2  57.42 13.62 13.53 0.00  0.09  0.89  W  0.999 0.00 1.00 4                               
 B057 PB EHZ -- A 87.7 313  93  P  2  58.56 14.76 14.74 0.00  0.02  0.89  W  0.999 0.00 1.00 4                               

Event Files: April 2018