Early-est:     Northern Xinjiang, China    2025.12.12-03:05:01.67    q:B      mb:4.7    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1765508701666.mech.fmamp_polarity.thumb.jpg     hash:./hypo.1765508701666.mech.hash.thumb.jpg     fmamp_amp_aref:./hypo.1765508701666.mech.fmamp_amp_aref.thumb.jpg     fmamp_amp_mwp:./hypo.1765508701666.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: 4.7 [15]    Mwp: - [0]    Mwpd: - [0]
Region: Northern Xinjiang, China
Origin Time: 2025.12.12-03:05:01.67 UTC
Hypocenter: lat: 42.63°  lon: 88.00°  [+/-7km]    depth: 20km  [+/-7km]
Location Quality: qualityCode:  B     stdErr: 1.4s   assocPhases: 46   usedPhases: 23
minDist: 5.3°   maxDist: 69.9°   AzGap: 142°   2ndAzGap: 165°   atten: -1.45 [+/-0.23]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 6km   maxHorUnc: 7km   azMaxHorUnc: 157°
68%ConfEllipsoid:   semiMajorAxisLength: 8km   majorAxisAzimuth: 338°   majorAxisPlunge: 12°   semiIntermediateAxisLength: 7km   intermediateAxisAzimuth: 78°   intermediateAxisPlunge: 39°   semiMinorAxisLength: 7km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 0.5 [12]    Td: -s [0]    Td*T50Ex: - [0]    To: 1.5Xs [2]
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:
       20km
       20km
       20km
Slab depth at epicenter:
       n/a
       -
       -
./hypo.1765508701666.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 101°   dip: 34°   rake: 84°
Nodal Plane 2: strike: 289°   dip: 56°   rake: 94°
Quality: azimuthalGap: -1°   stationPolarityCount: 20   misfitWeightCount: 5.3   misfit: 0.10   stationDistributionRatio: 0.42   meanDistP: 36.1   meanDistT: 34.1   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1765508701666.mech.fmamp_polarity.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 153°   dip: 73°   rake: 155°
Nodal Plane 2: strike: 251°   dip: 67°   rake: 19°
Quality: azimuthalGap: 118°   stationPolarityCount: 20   misfit: 0.36   stationDistributionRatio: 0.68   rmsAngDiffAccPref: 34.44   fracAcc30degPref: 0.68   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1765508701666.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.1765508701666.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.1765508701666.mech.fmamp_amp_mwp.mechanism.jpg

Event ID: smi:KOERI/ee/event/1765508701666
Event info last updated: 2025.12.12-04:05:34 UTC
Event first association/location: 2025.12.12-04:05:33 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI