Early-est:     New Guinea, Papua New Guinea    2026.10.07-17:36:17.26    q:B      mb:4.1    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:     hash:     fmamp_amp_aref:     fmamp_amp_mwp:

Automatic solution - this event has not been reviewed by a seismologist
Automatically determined event information may be incorrect!

Earthquake Details: Magnitude: mb: 4.1 [8]    Mwp: - [0]    Mwpd: - [0] Region: New Guinea, Papua New Guinea Origin Time: 2026.10.07-17:36:17.26 UTC Hypocenter: lat: -4.75°  lon: 143.74°  [+/-14km]    depth: 88km  [+/-17km] Location Quality: qualityCode:  B     stdErr: 1.0s   assocPhases: 15   usedPhases: 13 minDist: 3.8°   maxDist: 117.1°   AzGap: 192°   2ndAzGap: 210°   atten: -1.00 [+/-0.37] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 12km   maxHorUnc: 14km   azMaxHorUnc: 32° 68%ConfEllipsoid:   semiMajorAxisLength: 18km   majorAxisAzimuth: 31°   majorAxisPlunge: 19°   semiIntermediateAxisLength: 16km   intermediateAxisAzimuth: 228°   intermediateAxisPlunge: 70°   semiMinorAxisLength: 15km Tsunamigeneic Assesment: Discriminants: Prob Underwater: <1% T50Ex: 0.6 [6]    Td: -s [0]    Td*T50Ex: - [0]    To: 1.1Xs [3] Closest plate boundaries:    South Bismarck - Woodlark [continental rift boundary]: distance: ~100km    North Bismarck - South Bismarck [continental convergent boundary]: distance: ~140km    North Bismarck \ Woodlark [subduction zone]: distance: ~140km    Woodlark - Australia [continental convergent boundary]: distance: ~190km Subduction geometry: none or not available Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (140km)  no  no Prob underwater:  <1%  <1%  <1% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        88km        88km        88km Slab depth at epicenter:        n/a        -        -

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 187°   dip: 19°   rake: -106° Nodal Plane 2: strike: 25°   dip: 72°   rake: -84° Quality: azimuthalGap: -1°   stationPolarityCount: 11   misfitWeightCount: 4.1   misfit: 0.10   stationDistributionRatio: 0.34   meanDistP: 40.8   meanDistT: 45.8   qualityCode: D Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
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: 210°   stationPolarityCount: 11   misfit: 0.99   stationDistributionRatio: 0.64   rmsAngDiffAccPref: 40.10   fracAcc30degPref: 0.00   qualityCode: E Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
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
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

Event ID: smi:KOERI/ee/event/1791394576886
Event info last updated: 2026.10.07-18:36:34 UTC
Event first association/location: 2026.10.07-17:42:23 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI