Early-est:     Fiji Islands Region    2024.12.17-17:06:26.87    q:C      mb:4.2*    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: 4.2* [11]    Mwp: - [0]    Mwpd: - [0] Region: Fiji Islands Region Origin Time: 2024.12.17-17:06:26.87 UTC Hypocenter: lat: -17.75°  lon: -178.51°  [+/-43km]    depth: 584km  [+/-25km] Location Quality: qualityCode:  C     stdErr: 0.6s   assocPhases: 20   usedPhases: 15 minDist: 3.3°   maxDist: 157.0°   AzGap: 130°   2ndAzGap: 190°   atten: -1.35 [+/-0.37] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 18km   maxHorUnc: 43km   azMaxHorUnc: 1° 68%ConfEllipsoid:   semiMajorAxisLength: 53km   majorAxisAzimuth: 1°   majorAxisPlunge: 4°   semiIntermediateAxisLength: 26km   intermediateAxisAzimuth: 97°   intermediateAxisPlunge: 54°   semiMinorAxisLength: 21km Tsunamigeneic Assesment: Discriminants: Prob Underwater: >99% T50Ex: 0.0X [1]    Td: -s [0]    Td*T50Ex: - [0]    To: 0.6Xs [1] Closest plate boundaries:    Niuafo'ou - Australia [continental transform fault]: distance: ~190km 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:        584km        584km        584km 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: 37°   dip: 24°   rake: 138° Nodal Plane 2: strike: 166°   dip: 74°   rake: 72° Quality: azimuthalGap: -1°   stationPolarityCount: 12   misfitWeightCount: 4.4   misfit: 0.04   stationDistributionRatio: 0.50   meanDistP: 48.4   meanDistT: 43.1   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):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 219°   dip: 36°   rake: 76° Nodal Plane 2: strike: 57°   dip: 55°   rake: 100° Quality: azimuthalGap: 140°   stationPolarityCount: 12   misfit: 0.29   stationDistributionRatio: 0.53   rmsAngDiffAccPref: 37.60   fracAcc30degPref: 0.55   qualityCode: D Method: methodID: smi:gov.usgs/focalmec/HASH_1.2

Event ID: smi:alomax.net_BETA/author/ee/event/1734455186896
Event info last updated: 2024.12.17-18:05:01 UTC
Event first association/location: 2024.12.17-17:14:02 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA