Early-est:     Fiji Islands Region    2024.03.21-14:19:35.05    q:C      mb:4.1*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1711030773812.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1711030773812.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1711030773812.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: 4.1* [5]    Mwp: - [0]    Mwpd: - [0]
Region: Fiji Islands Region
Origin Time: 2024.03.21-14:19:35.05 UTC
Hypocenter: lat: -21.07°  lon: -179.03°  [+/-29km]    depth: 555km  [+/-27km]
Location Quality: qualityCode:  C     stdErr: 0.9s   assocPhases: 38   usedPhases: 12
minDist: 4.3°   maxDist: 151.7°   AzGap: 132°   2ndAzGap: 220°   atten: -0.88 [+/-0.24]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 21km   maxHorUnc: 29km   azMaxHorUnc: 61°
68%ConfEllipsoid:   semiMajorAxisLength: 38km   majorAxisAzimuth: 62°   majorAxisPlunge: 22°   semiIntermediateAxisLength: 26km   intermediateAxisAzimuth: 161°   intermediateAxisPlunge: 21°   semiMinorAxisLength: 24km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.0X [1]    Td: -s [0]    Td*T50Ex: - [0]    To: 1.0Xs [1]
Closest plate boundaries:
Subduction geometry:    Zone: Kermadec-Tonga    Slab depth at epicenter: 608km
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:
       608km
       -
       -
Tsunami and Rupture predictions (TEST!): No prediction: Event too small (Mwp<7.0) or too few Mwp readings (N<20)
./hypo.1711030773812.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 50°   dip: 4°   rake: -53°
Nodal Plane 2: strike: 192°   dip: 87°   rake: -93°
Quality: azimuthalGap: -1°   stationPolarityCount: 11   misfitWeightCount: 2.9   misfit: 0.04   stationDistributionRatio: 0.33   meanDistP: 49.8   meanDistT: 52.0   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1711030773812.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.1711030773812.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (No solution available)
Nodal Plane 1: strike: 999°   dip: 99°   rake: 999°
Nodal Plane 2: strike: 324°   dip: 13°   rake: 135°
Quality: azimuthalGap: 210°   stationPolarityCount: 11   misfit: 0.99   stationDistributionRatio: 0.00   rmsAngDiffAccPref: 0.00   fracAcc30degPref: 0.00   qualityCode: E
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1711030773812.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1711030773812
Event info last updated: 2024.03.21-15:18:00 UTC
Event first association/location: 2024.03.21-14:30:01 UTC
Software: Early-est 1.2.9xDEV (2023.05.05)
Agency: alomax.net_BETA