Early-est:     Northern Xinjiang, China    2026.10.06-18:15:38.53    q:B      mb:4.8    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1791310547323.mech.fmamp_polarity.thumb.jpg     hash:./hypo.1791310547323.mech.hash.thumb.jpg     fmamp_amp_aref:./hypo.1791310547323.mech.fmamp_amp_aref.thumb.jpg     fmamp_amp_mwp:./hypo.1791310547323.mech.fmamp_amp_mwp.thumb.jpg

Automatic solution - this event has not been reviewed by a seismologist
Automatically determined event information may be incorrect!

Earthquake Details:
Magnitude: mb: 4.8 [21]    Mwp: - [0]    Mwpd: - [0]
Region: Northern Xinjiang, China
Origin Time: 2026.10.06-18:15:38.53 UTC
Hypocenter: lat: 42.12°  lon: 88.21°  [+/-14km]    depth: 18km  [+/-13km]
Location Quality: qualityCode:  B     stdErr: 1.2s   assocPhases: 55   usedPhases: 25
minDist: 5.8°   maxDist: 131.2°   AzGap: 119°   2ndAzGap: 126°   atten: -1.22 [+/-0.24]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 11km   maxHorUnc: 14km   azMaxHorUnc: 84°
68%ConfEllipsoid:   semiMajorAxisLength: 17km   majorAxisAzimuth: 84°   majorAxisPlunge: 1°   semiIntermediateAxisLength: 14km   intermediateAxisAzimuth: 353°   intermediateAxisPlunge: 40°   semiMinorAxisLength: 13km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 0.5 [22]    Td: 0.4Xs [3]    Td*T50Ex: - [0]    To: 7.9s [10]
Closest plate boundaries:
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 no
 no
 no
Prob underwater:
 <1%
 <1%
 <1%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       18km
       18km
       18km
Slab depth at epicenter:
       n/a
       -
       -
./hypo.1791310547323.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 190°   dip: 18°   rake: 43°
Nodal Plane 2: strike: 59°   dip: 78°   rake: 104°
Quality: azimuthalGap: -1°   stationPolarityCount: 22   misfitWeightCount: 7.2   misfit: 0.22   stationDistributionRatio: 0.42   meanDistP: 49.1   meanDistT: 45.6   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1791310547323.mech.fmamp_polarity.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 117°   dip: 80°   rake: -173°
Nodal Plane 2: strike: 26°   dip: 84°   rake: -10°
Quality: azimuthalGap: 118°   stationPolarityCount: 22   misfit: 0.39   stationDistributionRatio: 0.67   rmsAngDiffAccPref: 45.41   fracAcc30degPref: 0.34   qualityCode: D
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1791310547323.mech.hash.mechanism.jpg
First-motion Focal Mechanism (FMAMP_AMP_AREF):    (No solution available)
Nodal Plane 1: strike: 0°   dip: 0°   rake: 0°
Nodal Plane 2: strike: 270°   dip: 90°   rake: 90°
Quality: azimuthalGap: -1°   stationPolarityCount: 0   misfitWeightCount: -1.0   misfit: -1.00   stationDistributionRatio: -1.00   meanDistP: -1.0   meanDistT: -1.0   qualityCode: X
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_amp_aref
./hypo.1791310547323.mech.fmamp_amp_aref.mechanism.jpg
First-motion Focal Mechanism (FMAMP_AMP_MWP):    (No solution available)
Nodal Plane 1: strike: 0°   dip: 0°   rake: 0°
Nodal Plane 2: strike: 270°   dip: 90°   rake: 90°
Quality: azimuthalGap: -1°   stationPolarityCount: 0   misfitWeightCount: -1.0   misfit: -1.00   stationDistributionRatio: -1.00   meanDistP: -1.0   meanDistT: -1.0   qualityCode: X
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_amp_mwp
./hypo.1791310547323.mech.fmamp_amp_mwp.mechanism.jpg

Event ID: smi:KOERI/ee/event/1791310547323
Event info last updated: 2026.10.06-19:15:49 UTC
Event first association/location: 2026.10.06-18:19:25 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI