Errors from USGS Location and Magnitude:
EQPROC = 6.3km (3.9 mi)
HYPO2K = 6.9km (4.3 mi)
Magnitude = 0.2
USGS Report:
Date Time Lat Lon Mag Depth Location
-----------------------------------------------------------------------------------
2026/04/26 10:27:11 37.288 -121.659 M2.7 6.7 16 km E of Seven Trees, CA
EQPROC Summary:
2949 2026Apr26 1027 12.40 37.2675 -121.7253 17.17 0.19 19.8 56.3 138 8
MTUMZ SHZ PN 01 2026Apr26 1027 17.12 P ?0 19.8 0.00
GLFBZ SHZ PN 01 2026Apr26 1027 20.16 P ?0 42.4 -0.15
LCGPZ SHZ PN 01 2026Apr26 1027 21.75 P D0 52.2 0.02
ATZ SHZ PN 01 2026Apr26 1027 19.87 P U1 35.6 0.55
RE9A7 EHZ AM 00 2026Apr26 1027 22.42 P U2 56.7 0.03
B054 EHZ PB -- 2026Apr26 1027 26.00 P ?1 78.0 0.50
B058 EHZ PB -- 2026Apr26 1027 21.90 P D0 53.5 -0.03
B057 EHZ PB -- 2026Apr26 1027 30.41 Pg?3 112.4 -0.10
HYPO2K Report:
YEAR MO DA --ORIGIN-- --LAT N- --LON W-- DEPTH-M RMS ERH ERZ XMAG1 FMAG1 PMAG GEOID-DEP
2026-04-26 1027 12.37 37 15.990 121W43.534 18.18 0.09 0.94 1.44 2.55 2.55E 18.16
SOURCE
NSTA NPHS DMIN MODEL GAP ITR NFM NWR NWS NVR REMRKS-AVH N.XMG-XMMAD-T N.FMG-FMMAD-T L F X
8 8 19.8 Emb 138 21 4 6 0 8 # 8 1.27 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
2.55 8 1.27 E 24 5 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
MTUMZPN SHZ 01 A 19.8 231 130 P 17.12 4.75 4.68 0.00 0.07 1.14 W 0.559 0.00 30.0 2.50 E
ATZ PN SHZ 01 A 35.5 206 115 PU 1 19.87 7.50 6.84 0.00 0.66* 0.00 W 0.000 0.00 68.0 3.39 E
GLFBZPN SHZ 01 A 42.6 298 111 P 20.16 7.79 7.89 0.00 -0.10 1.14 W 0.386 0.00 29.0 2.60 E
LCGPZPN SHZ 01 A 52.3 300 107 PD 21.75 9.38 9.39 0.00 -0.01 1.14 W 0.374 0.00 25.0 2.47 E
B058 PB EHZ -- A 53.4 166 107 PD 21.90 9.53 9.55 0.00 -0.02 1.14 W 0.876 0.00 29.0 2.61 E
RE9A7AM EHZ 00 A 56.8 28 106 PU 2 22.42 10.05 10.09 0.00 -0.04 0.57 W 0.967 0.00 124 4.01 E
B054 PB EHZ -- A 78.1 328 66 P 1 26.00 13.63 13.42 0.00 0.21 0.86 W 0.836 0.00 31.0 2.70 E
B057 PB EHZ -- A112.4 319 66 P 3 30.41 18.04 18.54 0.00 -0.50 0.00 W 0.000 0.00 33.0 1 2.80 E