Early-est:     Kermadec Islands, New Zealand    2025.01.28-10:23:31.98    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 [36]    Mwp: 4.7X [1]    Mwpd: - [0] Region: Kermadec Islands, New Zealand Origin Time: 2025.01.28-10:23:31.98 UTC Hypocenter: lat: -30.59°  lon: -177.68°  [+/-17km]    depth: 20km  [+/-15km] Location Quality: qualityCode:  B     stdErr: 2.2s   assocPhases: 84   usedPhases: 71 minDist: 1.4°   maxDist: 163.8°   AzGap: 57°   2ndAzGap: 72°   atten: -0.94 [+/-0.23] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 12km   maxHorUnc: 17km   azMaxHorUnc: 145° 68%ConfEllipsoid:   semiMajorAxisLength: 22km   majorAxisAzimuth: 325°   majorAxisPlunge: 2°   semiIntermediateAxisLength: 15km   intermediateAxisAzimuth: 233°   intermediateAxisPlunge: 51°   semiMinorAxisLength: 14km Tsunamigeneic Assesment: Discriminants: Prob Underwater: >99% T50Ex: 0.4 [22]    Td: -s [0]    Td*T50Ex: - [0]    To: 2.1s [18] Closest plate boundaries:    Kermadec / Pacific [subduction zone]: distance: ~90km    Kermadec - Australia [continental rift boundary]: distance: ~150km Subduction geometry:    Zone: Kermadec-Tonga    Slab depth at epicenter: 34km Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (90km)  no  no Prob underwater:  >99%  >99%  >99% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        20km        20km        20km Slab depth at epicenter:        34km        -        -

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 67°   dip: 41°   rake: 119° Nodal Plane 2: strike: 211°   dip: 55°   rake: 67° Quality: azimuthalGap: -1°   stationPolarityCount: 56   misfitWeightCount: 9.1   misfit: 0.14   stationDistributionRatio: 0.38   meanDistP: 34.6   meanDistT: 46.1   qualityCode: D Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 291°   dip: 66°   rake: -168° Nodal Plane 2: strike: 195°   dip: 79°   rake: -25° Quality: azimuthalGap: 72°   stationPolarityCount: 56   misfit: 0.30   stationDistributionRatio: 0.47   rmsAngDiffAccPref: 38.47   fracAcc30degPref: 0.63   qualityCode: D 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/1738059812157
Event info last updated: 2025.01.28-11:23:34 UTC
Event first association/location: 2025.01.28-10:31:02 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI