Early-est:     Western Australia    2026.10.08-20:35:55.74    q:B      mb:3.7    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1791491755738.mech.fmamp_polarity.thumb.jpg     hash:./hypo.1791491755738.mech.hash.thumb.jpg     fmamp_amp_aref:./hypo.1791491755738.mech.fmamp_amp_aref.thumb.jpg     fmamp_amp_mwp:./hypo.1791491755738.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: 3.7 [5]    Mwp: - [0]    Mwpd: - [0]
Region: Western Australia
Origin Time: 2026.10.08-20:35:55.74 UTC
Hypocenter: lat: -30.52°  lon: 117.99°  [+/-14km]    depth: 10km  [+/-14km]
Location Quality: qualityCode:  B     stdErr: 2.1s   assocPhases: 12   usedPhases: 11
minDist: 2.5°   maxDist: 165.7°   AzGap: 164°   2ndAzGap: 186°   atten: -2.03 [+/-0.39]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 13km   maxHorUnc: 14km   azMaxHorUnc: 89°
68%ConfEllipsoid:   semiMajorAxisLength: 18km   majorAxisAzimuth: 89°   majorAxisPlunge: 5°   semiIntermediateAxisLength: 16km   intermediateAxisAzimuth: 358°   intermediateAxisPlunge: 5°   semiMinorAxisLength: 14km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 0.5X [3]    Td: -s [0]    Td*T50Ex: - [0]    To: -s [0]
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:
       10km
       10km
       10km
Slab depth at epicenter:
       n/a
       -
       -
./hypo.1791491755738.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (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
./hypo.1791491755738.mech.fmamp_polarity.mechanism.jpg
First-motion Focal Mechanism (HASH):    (No solution available)
Nodal Plane 1: strike: 999°   dip: 99°   rake: 999°
Nodal Plane 2: strike: 324°   dip: 13°   rake: 135°
Quality: azimuthalGap: 54°   stationPolarityCount: 4   misfit: 0.99   stationDistributionRatio: 0.66   rmsAngDiffAccPref: 47.90   fracAcc30degPref: 0.00   qualityCode: F
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1791491755738.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.1791491755738.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.1791491755738.mech.fmamp_amp_mwp.mechanism.jpg

Event ID: smi:KOERI/ee/event/1791491755738
Event info last updated: 2026.10.08-21:36:01 UTC
Event first association/location: 2026.10.08-21:07:47 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI