Early-est:     Eastern New Guinea Reg., P.N.G.    2026.09.24-23:30:28.49    q:B      mb:4.9*    Mwp:-    Mwpd:-    Td*T50Ex:0.7     fmamp_polarity:./hypo.1790292626641.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1790292626641.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1790292626641.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: 4.9* [22]    Mwp: 5.0X [1]    Mwpd: 5.2Xinv [1]
Region: Eastern New Guinea Reg., P.N.G.
Origin Time: 2026.09.24-23:30:28.49 UTC
Hypocenter: lat: -6.05°  lon: 147.40°  [+/-25km]    depth: 46km  [+/-40km]
Location Quality: qualityCode:  B     stdErr: 1.3s   assocPhases: 58   usedPhases: 34
minDist: 3.4°   maxDist: 147.7°   AzGap: 61°   2ndAzGap: 97°   atten: -0.96 [+/-0.25]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 24km   maxHorUnc: 25km   azMaxHorUnc: 146°
68%ConfEllipsoid:   semiMajorAxisLength: 40km   majorAxisAzimuth: 168°   majorAxisPlunge: 74°   semiIntermediateAxisLength: 30km   intermediateAxisAzimuth: 309°   intermediateAxisPlunge: 12°   semiMinorAxisLength: 29km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 0.6 [16]    Td: 1.2s [5]    Td*T50Ex: 0.7 [5]    To: 33.4s [15]
Closest plate boundaries:
   South Bismarck - Woodlark [continental convergent boundary]: distance: ~90km
   South Bismarck / Solomon Sea [subduction zone]: distance: ~200km
   Solomon Sea \ Woodlark [subduction zone]: distance: ~200km
Subduction geometry:    Zone: Solomon Islands: DEBUG: error: [Errno 2] No such file or directory: 'gmt'    Slab depth at epicenter: error: evaluating slab depth: -999.9
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 YES (200km)
 YES (90km)
 no
Prob underwater:
 <1%
 <1%
 <1%
Td*T50Ex:
   0.7
   0.7
   0.7
Td*To:
     40.1
     40.1
     40.1
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       46km
       46km
       46km
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.1790292626641.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 338°   dip: 26°   rake: 159°
Nodal Plane 2: strike: 87°   dip: 81°   rake: 65°
Quality: azimuthalGap: -1°   stationPolarityCount: 24   misfitWeightCount: 9.0   misfit: 0.18   stationDistributionRatio: 0.35   meanDistP: 52.9   meanDistT: 50.1   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1790292626641.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.1790292626641.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 341°   dip: 69°   rake: -133°
Nodal Plane 2: strike: 231°   dip: 47°   rake: -29°
Quality: azimuthalGap: 64°   stationPolarityCount: 24   misfit: 0.25   stationDistributionRatio: 0.70   rmsAngDiffAccPref: 33.74   fracAcc30degPref: 0.56   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1790292626641.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1790292626641
Event info last updated: 2026.09.25-00:29:00 UTC
Event first association/location: 2026.09.24-23:35:00 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA