Early-est:     Fiji Islands Region    2026.02.14-14:41:28.43    q:B      mb:4.4*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1771080088486.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1771080088486.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1771080088486.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: 4.4* [12]    Mwp: - [0]    Mwpd: - [0]
Region: Fiji Islands Region
Origin Time: 2026.02.14-14:41:28.43 UTC
Hypocenter: lat: -19.41°  lon: -177.37°  [+/-20km]    depth: 609km  [+/-18km]
Location Quality: qualityCode:  B     stdErr: 0.8s   assocPhases: 21   usedPhases: 19
minDist: 4.6°   maxDist: 149.5°   AzGap: 167°   2ndAzGap: 228°   atten: -0.96 [+/-0.33]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 17km   maxHorUnc: 20km   azMaxHorUnc: 84°
68%ConfEllipsoid:   semiMajorAxisLength: 25km   majorAxisAzimuth: 264°   majorAxisPlunge: 11°   semiIntermediateAxisLength: 20km   intermediateAxisAzimuth: 173°   intermediateAxisPlunge: 2°   semiMinorAxisLength: 17km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.0 [4]    Td: -s [0]    Td*T50Ex: - [0]    To: 1.4s [4]
Closest plate boundaries:
   Niuafo'ou - Australia [oceanic transform fault]: distance: ~90km
   Tonga - Australia [oceanic spreading ridge]: distance: ~140km
   Tonga - Niuafo'ou [continental convergent boundary]: distance: ~150km
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:
       609km
       609km
       609km
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.1771080088486.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 53°   dip: 68°   rake: -18°
Nodal Plane 2: strike: 150°   dip: 73°   rake: -157°
Quality: azimuthalGap: -1°   stationPolarityCount: 15   misfitWeightCount: 4.0   misfit: 0.06   stationDistributionRatio: 0.59   meanDistP: 41.9   meanDistT: 50.2   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1771080088486.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.1771080088486.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 313°   dip: 84°   rake: 147°
Nodal Plane 2: strike: 47°   dip: 58°   rake: 8°
Quality: azimuthalGap: 126°   stationPolarityCount: 15   misfit: 0.17   stationDistributionRatio: 0.50   rmsAngDiffAccPref: 45.76   fracAcc30degPref: 0.30   qualityCode: D
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1771080088486.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1771080088486
Event info last updated: 2026.02.14-15:40:01 UTC
Event first association/location: 2026.02.14-14:55:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA