Early-est:     Vanuatu Islands    2024.12.19-18:36:24.38    q:C      mb:4.8*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1734633378787.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1734633378787.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1734633378787.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: 4.8* [18]    Mwp: - [0]    Mwpd: - [0]
Region: Vanuatu Islands
Origin Time: 2024.12.19-18:36:24.38 UTC
Hypocenter: lat: -19.84°  lon: 168.64°  [+/-59km]    depth: 84km  [+/-60km]
Location Quality: qualityCode:  C     stdErr: 1.4s   assocPhases: 43   usedPhases: 22
minDist: 4.1°   maxDist: 147.1°   AzGap: 102°   2ndAzGap: 103°   atten: -1.03 [+/-0.24]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 37km   maxHorUnc: 59km   azMaxHorUnc: 12°
68%ConfEllipsoid:   semiMajorAxisLength: 87km   majorAxisAzimuth: 14°   majorAxisPlunge: 36°   semiIntermediateAxisLength: 47km   intermediateAxisAzimuth: 112°   intermediateAxisPlunge: 11°   semiMinorAxisLength: 37km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.6 [12]    Td: -s [0]    Td*T50Ex: - [0]    To: 26.4s [11]
Closest plate boundaries:
   New Hebrides / Australia [subduction zone]: distance: ~50km
Subduction geometry:    Zone: Santa Cruz Islands/Vanuatu/Loyalty Islands: 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?:
 YES (50km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       84km
       84km
       84km
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.1734633378787.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 178°   dip: 12°   rake: -145°
Nodal Plane 2: strike: 54°   dip: 83°   rake: -80°
Quality: azimuthalGap: -1°   stationPolarityCount: 20   misfitWeightCount: 6.1   misfit: 0.05   stationDistributionRatio: 0.51   meanDistP: 42.2   meanDistT: 51.2   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1734633378787.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.1734633378787.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 319°   dip: 32°   rake: -18°
Nodal Plane 2: strike: 64°   dip: 81°   rake: -121°
Quality: azimuthalGap: 101°   stationPolarityCount: 20   misfit: 0.17   stationDistributionRatio: 0.58   rmsAngDiffAccPref: 33.04   fracAcc30degPref: 0.61   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1734633378787.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1734633378787
Event info last updated: 2024.12.19-19:35:01 UTC
Event first association/location: 2024.12.19-18:42:02 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA