Early-est:     New Britain Region, P.N.G.    2026.10.14-02:12:21.33    q:C      mb:4.6    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: 4.6 [8]    Mwp: - [0]    Mwpd: - [0] Region: New Britain Region, P.N.G. Origin Time: 2026.10.14-02:12:21.33 UTC Hypocenter: lat: -4.80°  lon: 152.61°  [+/-14km]    depth: 10km  [+/-13km] Location Quality: qualityCode:  C     stdErr: 1.7s   assocPhases: 12   usedPhases: 12 minDist: 0.8°   maxDist: 119.2°   AzGap: 180°   2ndAzGap: 214°   atten: -1.41 [+/-0.56] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 13km   maxHorUnc: 14km   azMaxHorUnc: 108° 68%ConfEllipsoid:   semiMajorAxisLength: 17km   majorAxisAzimuth: 110°   majorAxisPlunge: 8°   semiIntermediateAxisLength: 16km   intermediateAxisAzimuth: 201°   intermediateAxisPlunge: 5°   semiMinorAxisLength: 13km Tsunamigeneic Assesment: Discriminants: Prob Underwater: >99% T50Ex: 0.4 [5]    Td: -s [0]    Td*T50Ex: - [0]    To: 2.2s [4] Closest plate boundaries:    North Bismarck - South Bismarck [continental transform fault]: distance: ~40km    South Bismarck / Solomon Sea [subduction zone]: distance: ~90km    North Bismarck - Manus [oceanic convergent boundary]: distance: ~190km    Manus - South Bismarck [oceanic spreading ridge]: distance: ~190km Subduction geometry:    Zone: Solomon Islands    Slab depth at epicenter: 49km Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (90km)  no  YES (40km) Prob underwater:  >99%  >99%  >99% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        10km        10km        10km Slab depth at epicenter:        49km        -        -

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 78°   dip: 68°   rake: 161° Nodal Plane 2: strike: 175°   dip: 73°   rake: 23° Quality: azimuthalGap: -1°   stationPolarityCount: 10   misfitWeightCount: 4.0   misfit: 0.02   stationDistributionRatio: 0.59   meanDistP: 42.5   meanDistT: 44.7   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: 194°   stationPolarityCount: 10   misfit: 0.99   stationDistributionRatio: 0.57   rmsAngDiffAccPref: 35.05   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/1791943941315
Event info last updated: 2026.10.14-03:12:22 UTC
Event first association/location: 2026.10.14-02:51:03 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI