Early-est:     Vanuatu Islands    2024.12.17-03:48:18.33    q:B      mb:4.9*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1734407299226.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1734407299226.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1734407299226.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* [18]    Mwp: - [0]    Mwpd: - [0]
Region: Vanuatu Islands
Origin Time: 2024.12.17-03:48:18.33 UTC
Hypocenter: lat: -17.95°  lon: 167.93°  [+/-16km]    depth: 15km  [+/-14km]
Location Quality: qualityCode:  B     stdErr: 1.9s   assocPhases: 50   usedPhases: 41
minDist: 4.3°   maxDist: 151.6°   AzGap: 72°   2ndAzGap: 112°   atten: -1.48 [+/-0.16]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 12km   maxHorUnc: 16km   azMaxHorUnc: 179°
68%ConfEllipsoid:   semiMajorAxisLength: 20km   majorAxisAzimuth: 359°   majorAxisPlunge: 3°   semiIntermediateAxisLength: 16km   intermediateAxisAzimuth: 90°   intermediateAxisPlunge: 20°   semiMinorAxisLength: 14km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.5 [11]    Td: 9.7Xs [1]    Td*T50Ex: - [0]    To: 12.2s [10]
Closest plate boundaries:
   New Hebrides / Australia [subduction zone]: distance: ~60km
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 (60km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       15km
       15km
       15km
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.1734407299226.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 32°   dip: 12°   rake: 31°
Nodal Plane 2: strike: 272°   dip: 84°   rake: 100°
Quality: azimuthalGap: -1°   stationPolarityCount: 17   misfitWeightCount: 5.8   misfit: 0.13   stationDistributionRatio: 0.36   meanDistP: 39.1   meanDistT: 49.9   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1734407299226.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.1734407299226.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 116°   dip: 10°   rake: 92°
Nodal Plane 2: strike: 294°   dip: 80°   rake: 90°
Quality: azimuthalGap: 72°   stationPolarityCount: 17   misfit: 0.29   stationDistributionRatio: 0.57   rmsAngDiffAccPref: 40.92   fracAcc30degPref: 0.41   qualityCode: D
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1734407299226.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1734407299226
Event info last updated: 2024.12.17-04:47:03 UTC
Event first association/location: 2024.12.17-03:56:04 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA