Early-est:     Vanuatu Islands    2024.12.17-20:02:09.04    q:B      mb:4.7*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1734465729359.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1734465729359.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1734465729359.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: 4.7* [11]    Mwp: 4.7X [1]    Mwpd: - [0]
Region: Vanuatu Islands
Origin Time: 2024.12.17-20:02:09.04 UTC
Hypocenter: lat: -17.98°  lon: 168.01°  [+/-15km]    depth: 62km  [+/-18km]
Location Quality: qualityCode:  B     stdErr: 1.1s   assocPhases: 30   usedPhases: 19
minDist: 4.3°   maxDist: 135.4°   AzGap: 126°   2ndAzGap: 199°   atten: -1.99 [+/-0.23]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 12km   maxHorUnc: 15km   azMaxHorUnc: 168°
68%ConfEllipsoid:   semiMajorAxisLength: 20km   majorAxisAzimuth: 165°   majorAxisPlunge: 32°   semiIntermediateAxisLength: 18km   intermediateAxisAzimuth: 2°   intermediateAxisPlunge: 56°   semiMinorAxisLength: 15km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.1 [6]    Td: -s [0]    Td*T50Ex: - [0]    To: 7.7s [6]
Closest plate boundaries:
   New Hebrides / Australia [subduction zone]: distance: ~70km
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 (70km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       62km
       62km
       62km
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.1734465729359.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 104°   dip: 12°   rake: 63°
Nodal Plane 2: strike: 311°   dip: 79°   rake: 96°
Quality: azimuthalGap: -1°   stationPolarityCount: 14   misfitWeightCount: 6.2   misfit: 0.15   stationDistributionRatio: 0.45   meanDistP: 46.6   meanDistT: 46.0   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1734465729359.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.1734465729359.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 308°   dip: 52°   rake: 157°
Nodal Plane 2: strike: 52°   dip: 72°   rake: 41°
Quality: azimuthalGap: 72°   stationPolarityCount: 14   misfit: 0.23   stationDistributionRatio: 0.50   rmsAngDiffAccPref: 46.94   fracAcc30degPref: 0.30   qualityCode: D
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1734465729359.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1734465729359
Event info last updated: 2024.12.17-21:01:01 UTC
Event first association/location: 2024.12.17-20:08:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA