Early-est:     Fiji Islands Region    2026.02.12-13:52:05.90    q:A      mb:4.8*    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: 4.8* [36]    Mwp: - [0]    Mwpd: - [0] Region: Fiji Islands Region Origin Time: 2026.02.12-13:52:05.90 UTC Hypocenter: lat: -18.09°  lon: -177.99°  [+/-14km]    depth: 552km  [+/-18km] Location Quality: qualityCode:  A     stdErr: 1.1s   assocPhases: 95   usedPhases: 68 minDist: 3.8°   maxDist: 151.0°   AzGap: 61°   2ndAzGap: 91°   atten: -0.97 [+/-0.33] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 13km   maxHorUnc: 14km   azMaxHorUnc: 17° 68%ConfEllipsoid:   semiMajorAxisLength: 18km   majorAxisAzimuth: 208°   majorAxisPlunge: 60°   semiIntermediateAxisLength: 17km   intermediateAxisAzimuth: 8°   intermediateAxisPlunge: 28°   semiMinorAxisLength: 16km Tsunamigeneic Assesment: Discriminants: Prob Underwater: >99% T50Ex: 0.0 [22]    Td: 5.7Xs [1]    Td*T50Ex: - [0]    To: 1.1s [22] Closest plate boundaries:    Niuafo'ou - Australia [continental rift boundary]: distance: ~160km Subduction geometry:    Zone: Kermadec-Tonga: 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?:  no  no  no Prob underwater:  >99%  >99%  >99% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        552km        552km        552km 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: Unreliable solution, qualityCode=C) Nodal Plane 1: strike: 131°   dip: 64°   rake: -15° Nodal Plane 2: strike: 227°   dip: 77°   rake: -153° Quality: azimuthalGap: -1°   stationPolarityCount: 42   misfitWeightCount: 12.2   misfit: 0.18   stationDistributionRatio: 0.54   meanDistP: 39.1   meanDistT: 49.1   qualityCode: C 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): Nodal Plane 1: strike: 227°   dip: 80°   rake: -153° Nodal Plane 2: strike: 132°   dip: 64°   rake: -11° Quality: azimuthalGap: 61°   stationPolarityCount: 42   misfit: 0.24   stationDistributionRatio: 0.63   rmsAngDiffAccPref: 18.23   fracAcc30degPref: 0.93   qualityCode: B Method: methodID: smi:gov.usgs/focalmec/HASH_1.2

Event ID: smi:alomax.net_BETA/author/ee/event/1770904325570
Event info last updated: 2026.02.12-14:51:00 UTC
Event first association/location: 2026.02.12-13:58:02 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA