Early-est:     Near South Coast of Irian Jaya    2025.04.10-07:53:19.64    q:A      mb:5.4*    Mwp:5.4    Mwpd:-    Td*T50Ex:0.3     fmamp_polarity:./hypo.1744271602913.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1744271602913.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1744271602913.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: 5.4* [42]    Mwp: 5.4 [14]    Mwpd: 5.6Xinv [13]
Region: Near South Coast of Irian Jaya
Origin Time: 2025.04.10-07:53:19.64 UTC
Hypocenter: lat: -5.86°  lon: 138.85°  [+/-13km]    depth: 9km  [+/-12km]
Location Quality: qualityCode:  A     stdErr: 1.4s   assocPhases: 88   usedPhases: 57
minDist: 7.2°   maxDist: 133.2°   AzGap: 45°   2ndAzGap: 81°   atten: -1.78 [+/-0.25]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 10km   maxHorUnc: 13km   azMaxHorUnc: 54°
68%ConfEllipsoid:   semiMajorAxisLength: 17km   majorAxisAzimuth: 229°   majorAxisPlunge: 21°   semiIntermediateAxisLength: 13km   intermediateAxisAzimuth: 126°   intermediateAxisPlunge: 30°   semiMinorAxisLength: 10km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 0.5 [41]    Td: 0.8s [18]    Td*T50Ex: 0.3 [18]    To: 9.7s [39]
Closest plate boundaries:
   Australia - Maoke [continental transform fault]: distance: ~150km
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:
   0.3
   0.3
   0.3
Td*To:
     7.8
     7.8
     7.8
Mwp magnitude:
       5.4
       5.4
       5.4
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.1744271602913.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 74°   dip: 2°   rake: -104°
Nodal Plane 2: strike: 268°   dip: 88°   rake: -90°
Quality: azimuthalGap: -1°   stationPolarityCount: 44   misfitWeightCount: 12.4   misfit: 0.07   stationDistributionRatio: 0.40   meanDistP: 39.6   meanDistT: 27.3   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1744271602913.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.1744271602913.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 320°   dip: 5°   rake: 135°
Nodal Plane 2: strike: 95°   dip: 87°   rake: 87°
Quality: azimuthalGap: 80°   stationPolarityCount: 44   misfit: 0.17   stationDistributionRatio: 0.74   rmsAngDiffAccPref: 28.27   fracAcc30degPref: 0.72   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1744271602913.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1744271602913
Event info last updated: 2025.04.10-08:52:00 UTC
Event first association/location: 2025.04.10-08:01:00 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA