Early-est:     South of Fiji Islands    2026.10.02-04:27:04.83    q:B      mb:4.9*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1790915219357.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1790915219357.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1790915219357.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: 4.9* [36]    Mwp: - [0]    Mwpd: - [0]
Region: South of Fiji Islands
Origin Time: 2026.10.02-04:27:04.83 UTC
Hypocenter: lat: -24.76°  lon: 179.05°  [+/-26km]    depth: 555km  [+/-19km]
Location Quality: qualityCode:  B     stdErr: 1.3s   assocPhases: 70   usedPhases: 51
minDist: 5.2°   maxDist: 159.5°   AzGap: 157°   2ndAzGap: 191°   atten: -1.73 [+/-0.24]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 11km   maxHorUnc: 26km   azMaxHorUnc: 71°
68%ConfEllipsoid:   semiMajorAxisLength: 33km   majorAxisAzimuth: 251°   majorAxisPlunge: 15°   semiIntermediateAxisLength: 18km   intermediateAxisAzimuth: 87°   intermediateAxisPlunge: 74°   semiMinorAxisLength: 14km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.0 [23]    Td: 0.9Xs [2]    Td*T50Ex: - [0]    To: 1.3s [22]
Closest plate boundaries:
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:
       555km
       555km
       555km
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.1790915219357.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 129°   dip: 76°   rake: 7°
Nodal Plane 2: strike: 38°   dip: 84°   rake: 166°
Quality: azimuthalGap: -1°   stationPolarityCount: 32   misfitWeightCount: 10.3   misfit: 0.20   stationDistributionRatio: 0.43   meanDistP: 52.4   meanDistT: 53.5   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1790915219357.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.1790915219357.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 38°   dip: 62°   rake: 151°
Nodal Plane 2: strike: 142°   dip: 65°   rake: 32°
Quality: azimuthalGap: 130°   stationPolarityCount: 32   misfit: 0.36   stationDistributionRatio: 0.63   rmsAngDiffAccPref: 37.03   fracAcc30degPref: 0.67   qualityCode: D
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1790915219357.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1790915219357
Event info last updated: 2026.10.02-05:26:01 UTC
Event first association/location: 2026.10.02-04:30:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA