Early-est:     Vanuatu Islands    2024.12.17-05:03:01.73    q:B      mb:4.5*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1734411781049.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1734411781049.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1734411781049.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: 4.5* [8]    Mwp: - [0]    Mwpd: - [0]
Region: Vanuatu Islands
Origin Time: 2024.12.17-05:03:01.73 UTC
Hypocenter: lat: -18.46°  lon: 167.88°  [+/-14km]    depth: 71km  [+/-16km]
Location Quality: qualityCode:  B     stdErr: 2.0s   assocPhases: 23   usedPhases: 20
minDist: 4.0°   maxDist: 151.9°   AzGap: 108°   2ndAzGap: 206°   atten: -1.60 [+/-0.19]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 10km   maxHorUnc: 14km   azMaxHorUnc: 163°
68%ConfEllipsoid:   semiMajorAxisLength: 20km   majorAxisAzimuth: 164°   majorAxisPlunge: 38°   semiIntermediateAxisLength: 14km   intermediateAxisAzimuth: 334°   intermediateAxisPlunge: 51°   semiMinorAxisLength: 13km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.4X [3]    Td: -s [0]    Td*T50Ex: - [0]    To: 8.4Xs [2]
Closest plate boundaries:
   New Hebrides / Australia [subduction zone]: distance: ~40km
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 (40km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       71km
       71km
       71km
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.1734411781049.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 145°   dip: 51°   rake: -155°
Nodal Plane 2: strike: 38°   dip: 71°   rake: -42°
Quality: azimuthalGap: -1°   stationPolarityCount: 9   misfitWeightCount: 3.5   misfit: 0.04   stationDistributionRatio: 0.58   meanDistP: 44.4   meanDistT: 52.3   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1734411781049.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.1734411781049.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 145°   dip: 32°   rake: -152°
Nodal Plane 2: strike: 31°   dip: 76°   rake: -61°
Quality: azimuthalGap: 140°   stationPolarityCount: 9   misfit: 0.29   stationDistributionRatio: 0.51   rmsAngDiffAccPref: 49.31   fracAcc30degPref: 0.30   qualityCode: D
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1734411781049.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1734411781049
Event info last updated: 2024.12.17-06:02:01 UTC
Event first association/location: 2024.12.17-05:11:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA