Event Number 1576

M2.4 m E of Danville, CA at 2018/04/29 18:28:44 UTC / 2018/04/29 18:28:44 PDT

Error Map and Stations Used to Locate Event

Errors from USGS Location and Magnitude:

EQPROC = 9.7km (6.0 mi)
HYPO2K = 7.1km (4.4 mi) Magnitude = -0.1

USGS Report:

Date       Time       Lat    Lon      Mag    Depth                Location   
-----------------------------------------------------------------------------------
2018/04/29 18:28:44  37.825 -121.978  M2.4   7.5 2km E of Danville, CA

EQPROC Summary:

1576 2018Apr29 1828 45.02  37.9092 -121.9503  6.75 0.08 22.7 58.7 214  4
ADUB1 SHZ PN 01 2018Apr29 1828 58.19 P ?1  73.6   0.04
CMP   SHZ PN 07 2018Apr29 1828 59.50 P D3  82.9  -0.03
B054  EHZ PB -- 2018Apr29 1828 49.37 P U0  22.7  -0.18
B057  EHZ PB -- 2018Apr29 1828 55.15 P ?1  55.9  -0.00

HYPO2K Report:

 YEAR MO DA  --ORIGIN--  --LAT N-  --LON W--  DEPTH-M RMS   ERH   ERZ  XMAG1 FMAG1 PMAG GEOID-DEP
 2018-04-29  1828 46.02  37 53.32  121W59.65   3.24  0.15  2.76 13.95        2.52  2.52E    3.21
                                                                                          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  18.3  Emb  206   9   2   4   0   4      -                          4  0.24 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
                                                     2.52      4  0.24 E     32  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 18.3 261  94  PU    49.37  3.35  3.45 0.00 -0.10  1.45  W  0.999 0.00 31.0   2.41 E                        
 B057 PB EHZ -- A 52.5 288  91  P  1  55.15  9.13  9.01 0.00  0.12  1.09  W  0.999 0.00 21.0   2.18 E                        
 ADUB1PN SHZ 01 A 71.2 178  91  P  1  58.19 12.17 12.06 0.00  0.11  1.09  W  0.999 0.00 35.0   2.70 E                        
 CMP  PN SHZ 07 A 83.9 134  90  PD 3  59.50 13.48 14.13 0.00 -0.65* 0.36  W  0.999 0.00 66.0 1 3.32 E                        

Event Files: April 2018