Early-est:     North Island, New Zealand    2025.01.28-10:26:30.29    q:B      mb:5.0    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:     hash:     fmamp_amp_aref:     fmamp_amp_mwp:

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

Earthquake Details: Magnitude: mb: 5.0 [21]    Mwp: 5.3X [2]    Mwpd: - [0] Region: North Island, New Zealand Origin Time: 2025.01.28-10:26:30.29 UTC Hypocenter: lat: -40.66°  lon: 176.03°  [+/-16km]    depth: 10km  [+/-15km] Location Quality: qualityCode:  B     stdErr: 1.7s   assocPhases: 57   usedPhases: 32 minDist: 1.2°   maxDist: 159.9°   AzGap: 103°   2ndAzGap: 127°   atten: -1.13 [+/-0.21] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 14km   maxHorUnc: 16km   azMaxHorUnc: 78° 68%ConfEllipsoid:   semiMajorAxisLength: 20km   majorAxisAzimuth: 79°   majorAxisPlunge: 11°   semiIntermediateAxisLength: 18km   intermediateAxisAzimuth: 170°   intermediateAxisPlunge: 6°   semiMinorAxisLength: 15km Tsunamigeneic Assesment: Discriminants: Prob Underwater: <1% T50Ex: 0.4 [18]    Td: 3.0Xs [1]    Td*T50Ex: - [0]    To: 18.7s [13] Closest plate boundaries:    Kermadec - Australia [continental transform fault]: distance: ~40km    Kermadec / Pacific [subduction zone]: distance: ~130km    Australia - Pacific [oceanic transform fault]: distance: ~160km    Australia \ Pacific [subduction zone]: distance: ~700km    Pacific / Australia [subduction zone]: distance: ~880km Subduction geometry: none or not available Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (130km)  no  YES (40km) Prob underwater:  <1%  <1%  <1% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        10km        10km        10km Slab depth at epicenter:        n/a        -        -

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 324°   dip: 34°   rake: 128° Nodal Plane 2: strike: 101°   dip: 64°   rake: 67° Quality: azimuthalGap: -1°   stationPolarityCount: 31   misfitWeightCount: 7.5   misfit: 0.15   stationDistributionRatio: 0.51   meanDistP: 42.4   meanDistT: 34.4   qualityCode: D Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C) Nodal Plane 1: strike: 184°   dip: 88°   rake: 158° Nodal Plane 2: strike: 275°   dip: 68°   rake: 2° Quality: azimuthalGap: 102°   stationPolarityCount: 31   misfit: 0.33   stationDistributionRatio: 0.48   rmsAngDiffAccPref: 32.21   fracAcc30degPref: 0.79   qualityCode: C Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
First-motion Focal Mechanism (FMAMP_AMP_AREF):    (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/_amp_aref
First-motion Focal Mechanism (FMAMP_AMP_MWP):    (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/_amp_mwp

Event ID: smi:KOERI/ee/event/1738059989800
Event info last updated: 2025.01.28-11:26:33 UTC
Event first association/location: 2025.01.28-10:33:04 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI