Early-est:     New Britain Region, P.N.G.    2026.02.11-17:43:51.96    q:C      mb:4.7*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:     fmamp_polarity_waveform:     hash:

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

Earthquake Details: Magnitude: mb: 4.7* [18]    Mwp: - [0]    Mwpd: - [0] Region: New Britain Region, P.N.G. Origin Time: 2026.02.11-17:43:51.96 UTC Hypocenter: lat: -4.48°  lon: 152.71°  [+/-32km]    depth: 80km  [+/-43km] Location Quality: qualityCode:  C     stdErr: 1.8s   assocPhases: 79   usedPhases: 25 minDist: 0.6°   maxDist: 134.6°   AzGap: 61°   2ndAzGap: 119°   atten: -1.28 [+/-0.42] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 16km   maxHorUnc: 32km   azMaxHorUnc: 18° 68%ConfEllipsoid:   semiMajorAxisLength: 53km   majorAxisAzimuth: 198°   majorAxisPlunge: 48°   semiIntermediateAxisLength: 26km   intermediateAxisAzimuth: 14°   intermediateAxisPlunge: 42°   semiMinorAxisLength: 20km Tsunamigeneic Assesment: Discriminants: Prob Underwater: 47% T50Ex: 0.6 [11]    Td: 0.6Xs [1]    Td*T50Ex: - [0]    To: 26.6s [10] Closest plate boundaries:    North Bismarck - South Bismarck [continental transform fault]: distance: ~30km    South Bismarck / Solomon Sea [subduction zone]: distance: ~130km    North Bismarck - Manus [oceanic convergent boundary]: distance: ~180km    Manus - South Bismarck [oceanic spreading ridge]: distance: ~180km 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 (130km)  no  YES (30km) Prob underwater:  47%  47%  47% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        80km        80km        80km 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)

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 239°   dip: 48°   rake: 37° Nodal Plane 2: strike: 122°   dip: 64°   rake: 131° Quality: azimuthalGap: -1°   stationPolarityCount: 19   misfitWeightCount: 7.5   misfit: 0.13   stationDistributionRatio: 0.40   meanDistP: 55.9   meanDistT: 52.3   qualityCode: D Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
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
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 14°   dip: 7°   rake: -164° Nodal Plane 2: strike: 268°   dip: 88°   rake: -83° Quality: azimuthalGap: 115°   stationPolarityCount: 19   misfit: 0.44   stationDistributionRatio: 0.70   rmsAngDiffAccPref: 46.94   fracAcc30degPref: 0.38   qualityCode: D Method: methodID: smi:gov.usgs/focalmec/HASH_1.2

Event ID: smi:alomax.net_BETA/author/ee/event/1770831827400
Event info last updated: 2026.02.11-18:42:02 UTC
Event first association/location: 2026.02.11-17:49:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA