Early-est:     Fiji Islands Region    2024.12.21-01:17:06.02    q:B      mb:4.7*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1734743826527.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1734743826527.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1734743826527.mech.hash.thumb.jpg

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

Earthquake Details:
Magnitude: mb: 4.7* [40]    Mwp: - [0]    Mwpd: - [0]
Region: Fiji Islands Region
Origin Time: 2024.12.21-01:17:06.02 UTC
Hypocenter: lat: -18.06°  lon: -177.98°  [+/-19km]    depth: 594km  [+/-19km]
Location Quality: qualityCode:  B     stdErr: 1.1s   assocPhases: 112   usedPhases: 82
minDist: 3.8°   maxDist: 174.2°   AzGap: 128°   2ndAzGap: 138°   atten: -0.90 [+/-0.24]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 13km   maxHorUnc: 19km   azMaxHorUnc: 173°
68%ConfEllipsoid:   semiMajorAxisLength: 24km   majorAxisAzimuth: 354°   majorAxisPlunge: 27°   semiIntermediateAxisLength: 18km   intermediateAxisAzimuth: 163°   intermediateAxisPlunge: 62°   semiMinorAxisLength: 16km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.0 [20]    Td: -s [0]    Td*T50Ex: - [0]    To: 1.1s [18]
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:
       594km
       594km
       594km
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)
./hypo.1734743826527.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 242°   dip: 39°   rake: 89°
Nodal Plane 2: strike: 63°   dip: 51°   rake: 91°
Quality: azimuthalGap: -1°   stationPolarityCount: 39   misfitWeightCount: 12.2   misfit: 0.18   stationDistributionRatio: 0.43   meanDistP: 50.0   meanDistT: 44.3   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1734743826527.mech.fmamp_polarity.mechanism.jpg
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
./hypo.1734743826527.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 62°   dip: 48°   rake: 105°
Nodal Plane 2: strike: 220°   dip: 45°   rake: 74°
Quality: azimuthalGap: 127°   stationPolarityCount: 39   misfit: 0.32   stationDistributionRatio: 0.62   rmsAngDiffAccPref: 21.92   fracAcc30degPref: 0.90   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1734743826527.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1734743826527
Event info last updated: 2024.12.21-02:16:00 UTC
Event first association/location: 2024.12.21-01:23:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA