Early-est:     Near S.E. Coast of Australia    2026.10.02-16:01:40.83    q:B      mb:4.5*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1790956900659.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1790956900659.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1790956900659.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: 4.5* [9]    Mwp: - [0]    Mwpd: - [0]
Region: Near S.E. Coast of Australia
Origin Time: 2026.10.02-16:01:40.83 UTC
Hypocenter: lat: -38.43°  lon: 145.92°  [+/-28km]    depth: 9km  [+/-21km]
Location Quality: qualityCode:  B     stdErr: 1.1s   assocPhases: 22   usedPhases: 14
minDist: 0.9°   maxDist: 150.4°   AzGap: 104°   2ndAzGap: 120°   atten: -2.19 [+/-0.34]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 21km   maxHorUnc: 28km   azMaxHorUnc: 34°
68%ConfEllipsoid:   semiMajorAxisLength: 35km   majorAxisAzimuth: 32°   majorAxisPlunge: 8°   semiIntermediateAxisLength: 27km   intermediateAxisAzimuth: 298°   intermediateAxisPlunge: 26°   semiMinorAxisLength: 18km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 1.0 [6]    Td: -s [0]    Td*T50Ex: - [0]    To: 36.9s [6]
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:
       9km
       9km
       9km
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.1790956900659.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 315°   dip: 28°   rake: -131°
Nodal Plane 2: strike: 180°   dip: 69°   rake: -71°
Quality: azimuthalGap: -1°   stationPolarityCount: 13   misfitWeightCount: 7.1   misfit: 0.08   stationDistributionRatio: 0.50   meanDistP: 46.1   meanDistT: 49.0   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1790956900659.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.1790956900659.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 184°   dip: 75°   rake: -152°
Nodal Plane 2: strike: 87°   dip: 63°   rake: -17°
Quality: azimuthalGap: 120°   stationPolarityCount: 11   misfit: 0.21   stationDistributionRatio: 0.80   rmsAngDiffAccPref: 48.17   fracAcc30degPref: 0.36   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1790956900659.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1790956900659
Event info last updated: 2026.10.02-17:00:03 UTC
Event first association/location: 2026.10.02-16:04:03 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA