Event Number 1678

M2.3 km ESE of Alum Rock, CA at 2019/01/27 02:55:27 UTC / 2019/01/27 02:55:27 PDT

Error Map and Stations Used to Locate Event

Errors from USGS Location and Magnitude:

EQPROC = 10.4km (6.5 mi)
HYPO2K = 18.6km (11.6mi) Magnitude = 0.0

USGS Report:

Date       Time       Lat    Lon      Mag    Depth                Location   
-----------------------------------------------------------------------------------
2019/01/27 02:55:27  37.325 -121.726  M2.3  -0.5 10km ESE of Alum Rock, CA

EQPROC Summary:

1678 2019Jan27  255 28.84  37.2753 -121.8259 15.58 0.04 14.0 53.0 185  5
ADUB1 SHZ PN 01 2019Jan27  255 32.74 P U0  14.0   0.03
MTUMZ SHZ PN 01 2019Jan27  255 32.62 P ?3  15.0  -0.21
B057  EHZ PB -- 2019Jan27  255 45.77 P U2 106.0  -0.00
B058  EHZ PB -- 2019Jan27  255 38.85 P U2  57.1  -0.03
B054  EHZ PB -- 2019Jan27  255 41.15 P D0  72.9  -0.03

HYPO2K Report:

 YEAR MO DA  --ORIGIN--  --LAT N-  --LON W--  DEPTH-M RMS   ERH   ERZ  XMAG1 FMAG1 PMAG GEOID-DEP
 2019-01-27  0255 28.55  37 14.47  121W54.97  23.75  0.05  3.76  1.40        2.28  2.28E   23.71
                                                                                          SOURCE
 NSTA NPHS  DMIN MODEL GAP ITR NFM NWR NWS NVR REMRKS-AVH  N.XMG-XMMAD-T   N.FMG-FMMAD-T  L F X
    5    5   5.7  Emb  167   7   4   5   0   5      #                          2  0.43 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
                                                     2.28      2  0.43 E     41  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  5.7 277 164  PU    32.74  4.19  4.18 0.00  0.01  1.54  W  0.955 0.00 37.0   2.70 E                        
 MTUMZPN SHZ 01 A  9.9 170 154  P  3  32.62  4.07  4.40 0.00 -0.33  0.38  W  0.086 0.00 15.0   1.85 E                        
 B058 PB EHZ -- A 57.4 148 101  PU 2  38.85 10.30 10.27 0.00  0.03  0.77  W  0.974 0.00 1.00 4                               
 B054 PB EHZ -- A 73.1 341  96  PD    41.15 12.60 12.60 0.00  0.00  1.54  W  0.999 0.00 7.00 4 1.34XE                        
 B057 PB EHZ -- A104.4 327  93  PU 2  45.77 17.22 17.25 0.00 -0.03  0.77  W  0.983 0.00 5.00 4 1.05XE                        

Event Files: January 2019