Early-est:     North Island, New Zealand    2024.12.17-15:44:10.60    q:C      mb:4.6*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1734450245214.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1734450245214.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1734450245214.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: 4.6* [11]    Mwp: - [0]    Mwpd: - [0]
Region: North Island, New Zealand
Origin Time: 2024.12.17-15:44:10.60 UTC
Hypocenter: lat: -37.89°  lon: 175.95°  [+/-64km]    depth: 196km  [+/-31km]
Location Quality: qualityCode:  C     stdErr: 1.6s   assocPhases: 48   usedPhases: 17
minDist: 1.1°   maxDist: 171.0°   AzGap: 122°   2ndAzGap: 164°   atten: -1.97 [+/-0.23]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 22km   maxHorUnc: 64km   azMaxHorUnc: 72°
68%ConfEllipsoid:   semiMajorAxisLength: 79km   majorAxisAzimuth: 252°   majorAxisPlunge: 3°   semiIntermediateAxisLength: 31km   intermediateAxisAzimuth: 142°   intermediateAxisPlunge: 80°   semiMinorAxisLength: 27km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 0.5 [8]    Td: -s [0]    Td*T50Ex: - [0]    To: 1.2s [8]
Closest plate boundaries:
   Kermadec - Australia [continental rift boundary]: distance: ~50km
   Kermadec / Pacific [subduction zone]: distance: ~300km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 YES (300km)
 no
 no
Prob underwater:
 <1%
 <1%
 <1%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       196km
       196km
       196km
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.1734450245214.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 184°   dip: 25°   rake: 52°
Nodal Plane 2: strike: 45°   dip: 70°   rake: 106°
Quality: azimuthalGap: -1°   stationPolarityCount: 20   misfitWeightCount: 8.3   misfit: 0.03   stationDistributionRatio: 0.60   meanDistP: 47.0   meanDistT: 29.1   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1734450245214.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.1734450245214.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 38°   dip: 57°   rake: 106°
Nodal Plane 2: strike: 190°   dip: 36°   rake: 67°
Quality: azimuthalGap: 80°   stationPolarityCount: 20   misfit: 0.19   stationDistributionRatio: 0.68   rmsAngDiffAccPref: 30.86   fracAcc30degPref: 0.60   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1734450245214.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1734450245214
Event info last updated: 2024.12.17-16:43:00 UTC
Event first association/location: 2024.12.17-15:50:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA