Early-est:     Northern Xinjiang, China    2026.06.21-17:58:48.08    q:B      mb:4.8*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1782064732095.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1782064732095.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1782064732095.mech.hash.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* [12]    Mwp: 4.5X [1]    Mwpd: - [0]
Region: Northern Xinjiang, China
Origin Time: 2026.06.21-17:58:48.08 UTC
Hypocenter: lat: 43.36°  lon: 81.17°  [+/-13km]    depth: 15km  [+/-13km]
Location Quality: qualityCode:  B     stdErr: 1.7s   assocPhases: 34   usedPhases: 16
minDist: 3.5°   maxDist: 92.4°   AzGap: 116°   2ndAzGap: 220°   atten: -1.36 [+/-0.35]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 12km   maxHorUnc: 13km   azMaxHorUnc: 87°
68%ConfEllipsoid:   semiMajorAxisLength: 16km   majorAxisAzimuth: 87°   majorAxisPlunge: 1°   semiIntermediateAxisLength: 15km   intermediateAxisAzimuth: 357°   intermediateAxisPlunge: 2°   semiMinorAxisLength: 13km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 0.8X [3]    Td: -s [0]    Td*T50Ex: - [0]    To: 186.7Xs [3]
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:
       15km
       15km
       15km
Slab depth at epicenter:
       n/a
       -
       -
Tsunami and Rupture predictions (TEST!): No prediction: Event too small (Mwp<7.0) or too few Mwp readings (N<20)
./hypo.1782064732095.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 35°   dip: 24°   rake: -34°
Nodal Plane 2: strike: 156°   dip: 77°   rake: -111°
Quality: azimuthalGap: -1°   stationPolarityCount: 12   misfitWeightCount: 4.8   misfit: 0.09   stationDistributionRatio: 0.42   meanDistP: 51.2   meanDistT: 51.8   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1782064732095.mech.fmamp_polarity.mechanism.jpg
First-motion Focal Mechanism (FMAMP_POLARITY_WAVEFORM):    (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/_polarity_waveform
./hypo.1782064732095.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 7°   dip: 25°   rake: -37°
Nodal Plane 2: strike: 132°   dip: 75°   rake: -110°
Quality: azimuthalGap: 115°   stationPolarityCount: 12   misfit: 0.21   stationDistributionRatio: 0.71   rmsAngDiffAccPref: 41.69   fracAcc30degPref: 0.41   qualityCode: D
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1782064732095.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1782064732095
Event info last updated: 2026.06.21-18:57:01 UTC
Event first association/location: 2026.06.21-18:06:00 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA