Early-est:     Off W. Coast of S. Island, N.Z.    2024.12.13-23:23:02.89    q:B      mb:4.8*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1734132182430.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1734132182430.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1734132182430.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* [13]    Mwp: - [0]    Mwpd: - [0]
Region: Off W. Coast of S. Island, N.Z.
Origin Time: 2024.12.13-23:23:02.89 UTC
Hypocenter: lat: -48.55°  lon: 164.64°  [+/-25km]    depth: 9km  [+/-21km]
Location Quality: qualityCode:  B     stdErr: 2.1s   assocPhases: 20   usedPhases: 18
minDist: 5.4°   maxDist: 151.5°   AzGap: 108°   2ndAzGap: 129°   atten: -1.10 [+/-0.51]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 13km   maxHorUnc: 25km   azMaxHorUnc: 176°
68%ConfEllipsoid:   semiMajorAxisLength: 32km   majorAxisAzimuth: 175°   majorAxisPlunge: 17°   semiIntermediateAxisLength: 20km   intermediateAxisAzimuth: 51°   intermediateAxisPlunge: 61°   semiMinorAxisLength: 15km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.5 [10]    Td: -s [0]    Td*T50Ex: - [0]    To: 6.5s [9]
Closest plate boundaries:
   Pacific / Australia [subduction zone]: distance: ~30km
   Pacific - Australia [oceanic transform fault]: distance: ~200km
   Australia \ Pacific [subduction zone]: distance: ~430km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 YES (30km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       9km
       9km
       9km
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.1734132182430.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 39°   dip: 30°   rake: 94°
Nodal Plane 2: strike: 214°   dip: 60°   rake: 88°
Quality: azimuthalGap: -1°   stationPolarityCount: 13   misfitWeightCount: 4.1   misfit: 0.01   stationDistributionRatio: 0.61   meanDistP: 47.6   meanDistT: 51.0   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1734132182430.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.1734132182430.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 35°   dip: 42°   rake: 101°
Nodal Plane 2: strike: 200°   dip: 49°   rake: 80°
Quality: azimuthalGap: 130°   stationPolarityCount: 13   misfit: 0.17   stationDistributionRatio: 0.83   rmsAngDiffAccPref: 37.89   fracAcc30degPref: 0.53   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1734132182430.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1734132182430
Event info last updated: 2024.12.14-00:22:02 UTC
Event first association/location: 2024.12.13-23:28:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA