Early-est:     Fiji Islands Region    2026.02.14-15:03:15.75    q:B      mb:4.5*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1771081396094.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1771081396094.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1771081396094.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: 4.5* [22]    Mwp: - [0]    Mwpd: - [0]
Region: Fiji Islands Region
Origin Time: 2026.02.14-15:03:15.75 UTC
Hypocenter: lat: -19.42°  lon: -177.88°  [+/-25km]    depth: 605km  [+/-23km]
Location Quality: qualityCode:  B     stdErr: 1.1s   assocPhases: 45   usedPhases: 28
minDist: 4.2°   maxDist: 149.2°   AzGap: 115°   2ndAzGap: 158°   atten: -0.97 [+/-0.27]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 20km   maxHorUnc: 25km   azMaxHorUnc: 167°
68%ConfEllipsoid:   semiMajorAxisLength: 31km   majorAxisAzimuth: 348°   majorAxisPlunge: 4°   semiIntermediateAxisLength: 26km   intermediateAxisAzimuth: 80°   intermediateAxisPlunge: 31°   semiMinorAxisLength: 22km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.1 [7]    Td: -s [0]    Td*T50Ex: - [0]    To: 0.8s [7]
Closest plate boundaries:
   Niuafo'ou - Australia [oceanic transform fault]: distance: ~140km
   Tonga - Australia [oceanic spreading ridge]: distance: ~190km
   Tonga - Niuafo'ou [continental convergent boundary]: distance: ~200km
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:
       605km
       605km
       605km
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.1771081396094.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 61°   dip: 55°   rake: 7°
Nodal Plane 2: strike: 326°   dip: 84°   rake: 145°
Quality: azimuthalGap: -1°   stationPolarityCount: 24   misfitWeightCount: 7.7   misfit: 0.13   stationDistributionRatio: 0.61   meanDistP: 40.3   meanDistT: 44.5   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1771081396094.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.1771081396094.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 319°   dip: 71°   rake: 142°
Nodal Plane 2: strike: 63°   dip: 55°   rake: 23°
Quality: azimuthalGap: 90°   stationPolarityCount: 24   misfit: 0.21   stationDistributionRatio: 0.58   rmsAngDiffAccPref: 32.70   fracAcc30degPref: 0.75   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1771081396094.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1771081396094
Event info last updated: 2026.02.14-16:02:01 UTC
Event first association/location: 2026.02.14-15:10:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA