Errors from USGS Location and Magnitude:
EQPROC = 9.6km (5.9 mi)
HYPO2K = 6.6km (4.1 mi)
Magnitude = -0.4
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2025/04/20 04:40:18 36.824 -121.565 M2.8 6.0 3 km WSW of San Juan Bautista, CA
EQPROC Summary:
2776 2025Apr20 440 18.24 36.7586 -121.6347 1.50 0.15 6.6 93.5 185 7
ATZ SHZ PN 01 2025Apr20 440 24.97 P U0 33.7 -0.00
GLFBZ SHZ PN 01 2025Apr20 440 34.46 P U1 88.8 0.16
RE9A7 EHZ AM 00 2025Apr20 440 47.49 S ?3 108.0 -3.21
B058 EHZ PB -- 2025Apr20 440 19.83 P D0 6.6 -0.10
B054 EHZ PB -- 2025Apr20 440 40.98 P U0 132.2 0.72
B073 EHZ PB -- 2025Apr20 440 41.67 P ?3 136.7 0.84
B057 EHZ PB -- 2025Apr20 440 45.83 PgD2 163.2 0.67
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH-M RMS ERH ERZ XMAG1 FMAG1 PMAG GEOID-DEP
2025-04-20 0440 18.75 36 46.018 121W35.598 1.12 0.22 2.39 17.54 3.15 3.15E 1.11
SOURCE
NSTA NPHS DMIN MODEL GAP ITR NFM NWR NWS NVR REMRKS-AVH N.XMG-XMMAD-T N.FMG-FMMAD-T L F X
6 6 3.8 Emb 180 8 5 6 0 6 - 4 3.15 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
3.15 4 3.15 E 5 3 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
B058 PB EHZ -- A 3.8 17 40 PD 19.83 1.08 1.17 0.00 -0.09 1.38 W 0.999 0.00 45.0 2.68 E
ATZ PN SHZ 01 A 35.9 311 35 PU 24.97 6.22 6.43 0.00 -0.21 1.38 W 0.935 0.00 96.0 3.61 E
GLFBZPN SHZ 01 A 90.1 327 35 PU 1 34.46 15.71 15.24 0.00 0.47 0.97 W 0.199 0.00 28.0 2.50 E
B054 PB EHZ -- A132.7 337 35 PU 40.98 22.23 22.17 0.00 0.06 1.37 W 0.797 0.00 29.0 2 2.58 E
B073 PB EHZ -- A135.7 131 35 P 3 41.67 22.92 22.66 0.00 0.26 0.34 W 0.998 0.00 7.00 4 1.22XE
B057 PB EHZ -- A164.2 329 35 PD 2 45.83 27.08 27.30 0.00 -0.22 0.54 W 0.068 0.00 7.00 4 1.25XE