Early-est:     Cook Strait, New Zealand    2024.12.17-04:39:36.36    q:B      mb:-    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:     fmamp_polarity_waveform:     hash:

Automatic solution - this event has not been reviewed by a seismologist
Automatically determined event information may be incorrect!

Earthquake Details: Magnitude: mb: 4.9X [2]    Mwp: - [0]    Mwpd: - [0] Region: Cook Strait, New Zealand Origin Time: 2024.12.17-04:39:36.36 UTC Hypocenter: lat: -41.89°  lon: 174.39°  [+/-19km]    depth: 112km  [+/-30km] Location Quality: qualityCode:  B     stdErr: 1.8s   assocPhases: 17   usedPhases: 9 minDist: 0.6°   maxDist: 146.3°   AzGap: 170°   2ndAzGap: 180°   atten: -9.90 [+/-0.00] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 16km   maxHorUnc: 19km   azMaxHorUnc: 126° 68%ConfEllipsoid:   semiMajorAxisLength: 30km   majorAxisAzimuth: 204°   majorAxisPlunge: 88°   semiIntermediateAxisLength: 24km   intermediateAxisAzimuth: 306°   intermediateAxisPlunge: 0°   semiMinorAxisLength: 20km Tsunamigeneic Assesment: Discriminants: Prob Underwater: >99% T50Ex: 0.4X [2]    Td: -s [0]    Td*T50Ex: - [0]    To: 57.1Xs [2] Closest plate boundaries:    Australia - Pacific [continental transform fault]: distance: ~40km    Kermadec - Australia [continental convergent boundary]: distance: ~50km    Kermadec / Pacific [subduction zone]: distance: ~90km    Australia \ Pacific [subduction zone]: distance: ~510km    Pacific / Australia [subduction zone]: distance: ~690km Subduction geometry: none or not available Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (90km)  YES (50km)  YES (40km) Prob underwater:  >99%  >99%  >99% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        112km        112km        112km 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)

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 157°   dip: 46°   rake: 61° Nodal Plane 2: strike: 16°   dip: 51°   rake: 117° Quality: azimuthalGap: -1°   stationPolarityCount: 11   misfitWeightCount: 5.0   misfit: 0.02   stationDistributionRatio: 0.42   meanDistP: 48.7   meanDistT: 43.3   qualityCode: D Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
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
First-motion Focal Mechanism (HASH):    (No solution available) Nodal Plane 1: strike: 999°   dip: 99°   rake: 999° Nodal Plane 2: strike: 324°   dip: 13°   rake: 135° Quality: azimuthalGap: 179°   stationPolarityCount: 11   misfit: 0.99   stationDistributionRatio: 0.51   rmsAngDiffAccPref: 49.31   fracAcc30degPref: 0.00   qualityCode: E Method: methodID: smi:gov.usgs/focalmec/HASH_1.2

Event ID: smi:alomax.net_BETA/author/ee/event/1734410377768
Event info last updated: 2024.12.17-05:38:01 UTC
Event first association/location: 2024.12.17-04:54:04 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA