Early-est:     Fiji Islands Region    2024.12.17-22:10:41.08    q:A      mb:5.3*    Mwp:5.6    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1734473441090.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1734473441090.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1734473441090.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: 5.3* [99]    Mwp: 5.6 [6]    Mwpd: 5.9Xinv [5]
Region: Fiji Islands Region
Origin Time: 2024.12.17-22:10:41.08 UTC
Hypocenter: lat: -18.20°  lon: -178.16°  [+/-18km]    depth: 546km  [+/-19km]
Location Quality: qualityCode:  A     stdErr: 1.2s   assocPhases: 264   usedPhases: 182
minDist: 3.6°   maxDist: 174.3°   AzGap: 39°   2ndAzGap: 43°   atten: -0.73 [+/-0.21]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 14km   maxHorUnc: 18km   azMaxHorUnc: 164°
68%ConfEllipsoid:   semiMajorAxisLength: 22km   majorAxisAzimuth: 165°   majorAxisPlunge: 26°   semiIntermediateAxisLength: 19km   intermediateAxisAzimuth: 331°   intermediateAxisPlunge: 64°   semiMinorAxisLength: 17km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.2 [73]    Td: 1.6Xs [2]    Td*T50Ex: - [0]    To: 1.6s [73]
Closest plate boundaries:
   Niuafo'ou - Australia [oceanic spreading ridge]: distance: ~180km
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:
       5.6
       5.6
       5.6
Hypocenter depth:
       546km
       546km
       546km
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.1734473441090.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):
Nodal Plane 1: strike: 145°   dip: 27°   rake: 176°
Nodal Plane 2: strike: 238°   dip: 88°   rake: 64°
Quality: azimuthalGap: -1°   stationPolarityCount: 89   misfitWeightCount: 24.5   misfit: 0.22   stationDistributionRatio: 0.51   meanDistP: 24.3   meanDistT: 32.9   qualityCode: B
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1734473441090.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.1734473441090.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 292°   dip: 10°   rake: -51°
Nodal Plane 2: strike: 73°   dip: 82°   rake: -96°
Quality: azimuthalGap: 42°   stationPolarityCount: 89   misfit: 0.30   stationDistributionRatio: 0.72   rmsAngDiffAccPref: 33.85   fracAcc30degPref: 0.62   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1734473441090.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1734473441090
Event info last updated: 2024.12.17-23:09:01 UTC
Event first association/location: 2024.12.17-22:16:04 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA