Early-est:     Near South Coast of Irian Jaya    2026.10.01-13:31:58.38    q:C      mb:4.1*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1790861524343.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1790861524343.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1790861524343.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: 4.1* [7]    Mwp: - [0]    Mwpd: 5.0Xinv [1]
Region: Near South Coast of Irian Jaya
Origin Time: 2026.10.01-13:31:58.38 UTC
Hypocenter: lat: -5.23°  lon: 138.54°  [+/-20km]    depth: 144km  [+/-29km]
Location Quality: qualityCode:  C     stdErr: 1.8s   assocPhases: 11   usedPhases: 8
minDist: 9.6°   maxDist: 167.6°   AzGap: 180°   2ndAzGap: 291°   atten: 0.82 [+/-1.54]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 14km   maxHorUnc: 20km   azMaxHorUnc: 44°
68%ConfEllipsoid:   semiMajorAxisLength: 34km   majorAxisAzimuth: 229°   majorAxisPlunge: 52°   semiIntermediateAxisLength: 18km   intermediateAxisAzimuth: 347°   intermediateAxisPlunge: 20°   semiMinorAxisLength: 16km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 0.5 [7]    Td: 0.4Xs [1]    Td*T50Ex: - [0]    To: 9.2s [6]
Closest plate boundaries:
   Australia - Maoke [continental transform fault]: distance: ~90km
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:
       144km
       144km
       144km
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.1790861524343.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 50°   dip: 45°   rake: 53°
Nodal Plane 2: strike: 277°   dip: 56°   rake: 121°
Quality: azimuthalGap: -1°   stationPolarityCount: 8   misfitWeightCount: 4.2   misfit: 0.00   stationDistributionRatio: 0.37   meanDistP: 53.8   meanDistT: 51.3   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1790861524343.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.1790861524343.mech.fmamp_polarity_waveform.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: 290°   stationPolarityCount: 8   misfit: 0.99   stationDistributionRatio: 0.72   rmsAngDiffAccPref: 42.35   fracAcc30degPref: 0.00   qualityCode: E
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1790861524343.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1790861524343
Event info last updated: 2026.10.01-14:30:01 UTC
Event first association/location: 2026.10.01-13:39:00 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA