Early-est:     New Britain Region, P.N.G.    2026.10.14-06:27:09.96    q:B      mb:4.4    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: 4.4 [13]    Mwp: 4.4X [1]    Mwpd: - [0] Region: New Britain Region, P.N.G. Origin Time: 2026.10.14-06:27:09.96 UTC Hypocenter: lat: -5.21°  lon: 152.18°  [+/-14km]    depth: 71km  [+/-18km] Location Quality: qualityCode:  B     stdErr: 1.1s   assocPhases: 21   usedPhases: 14 minDist: 1.0°   maxDist: 146.2°   AzGap: 120°   2ndAzGap: 143°   atten: -1.09 [+/-0.55] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 13km   maxHorUnc: 14km   azMaxHorUnc: 153° 68%ConfEllipsoid:   semiMajorAxisLength: 19km   majorAxisAzimuth: 331°   majorAxisPlunge: 52°   semiIntermediateAxisLength: 16km   intermediateAxisAzimuth: 232°   intermediateAxisPlunge: 7°   semiMinorAxisLength: 16km Tsunamigeneic Assesment: Discriminants: Prob Underwater: 94% T50Ex: 0.5 [9]    Td: 0.6Xs [1]    Td*T50Ex: - [0]    To: 14.7s [5] Closest plate boundaries:    South Bismarck / Solomon Sea [subduction zone]: distance: ~60km    North Bismarck - South Bismarck [continental transform fault]: distance: ~110km    Manus - South Bismarck [oceanic spreading ridge]: distance: ~190km    North Bismarck - Manus [oceanic convergent boundary]: distance: ~200km    North Bismarck / Solomon Sea [subduction zone]: distance: ~230km Subduction geometry:    Zone: Solomon Islands    Slab depth at epicenter: 30km Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (60km)  no  no Prob underwater:  94%  94%  94% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        71km        71km        71km Slab depth at epicenter:        30km        -        -

First-motion Focal Mechanism (FMAMP_POLARITY): Nodal Plane 1: strike: 37°   dip: 61°   rake: -30° Nodal Plane 2: strike: 143°   dip: 64°   rake: -147° Quality: azimuthalGap: -1°   stationPolarityCount: 14   misfitWeightCount: 8.5   misfit: 0.05   stationDistributionRatio: 0.50   meanDistP: 26.4   meanDistT: 22.5   qualityCode: B Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C) Nodal Plane 1: strike: 146°   dip: 68°   rake: -150° Nodal Plane 2: strike: 44°   dip: 62°   rake: -25° Quality: azimuthalGap: 134°   stationPolarityCount: 14   misfit: 0.10   stationDistributionRatio: 0.70   rmsAngDiffAccPref: 35.09   fracAcc30degPref: 0.61   qualityCode: C 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: nan° Nodal Plane 2: strike: nan°   dip: nan°   rake: nan° 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: nan° Nodal Plane 2: strike: nan°   dip: nan°   rake: nan° 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/1791959229957
Event info last updated: 2026.10.14-07:27:46 UTC
Event first association/location: 2026.10.14-06:32:01 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI