Early-est:     Kermadec Islands, New Zealand    2026.04.03-02:33:50.65    q:B      mb:4.9*    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: 4.9* [47]    Mwp: - [0]    Mwpd: - [0] Region: Kermadec Islands, New Zealand Origin Time: 2026.04.03-02:33:50.65 UTC Hypocenter: lat: -30.35°  lon: -178.82°  [+/-32km]    depth: 221km  [+/-22km] Location Quality: qualityCode:  B     stdErr: 1.5s   assocPhases: 128   usedPhases: 97 minDist: 1.4°   maxDist: 171.5°   AzGap: 60°   2ndAzGap: 74°   atten: -1.27 [+/-0.17] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 23km   maxHorUnc: 32km   azMaxHorUnc: 147° 68%ConfEllipsoid:   semiMajorAxisLength: 40km   majorAxisAzimuth: 327°   majorAxisPlunge: 1°   semiIntermediateAxisLength: 29km   intermediateAxisAzimuth: 57°   intermediateAxisPlunge: 0°   semiMinorAxisLength: 22km Tsunamigeneic Assesment: Discriminants: Prob Underwater: >99% T50Ex: 0.4 [33]    Td: 1.6Xs [1]    Td*T50Ex: - [0]    To: 2.3s [30] Closest plate boundaries:    Kermadec - Australia [continental rift boundary]: distance: ~40km    Kermadec / Pacific [subduction zone]: distance: ~200km Subduction geometry:    Zone: Kermadec-Tonga: DEBUG: error: [Errno 2] No such file or directory: 'gmt'    Slab depth at epicenter: error: evaluating slab depth: -999.9 Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (200km)  no  no Prob underwater:  >99%  >99%  >99% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        221km        221km        221km 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: Unreliable solution, qualityCode=C) Nodal Plane 1: strike: 152°   dip: 22°   rake: 68° Nodal Plane 2: strike: 355°   dip: 70°   rake: 98° Quality: azimuthalGap: -1°   stationPolarityCount: 41   misfitWeightCount: 14.2   misfit: 0.20   stationDistributionRatio: 0.48   meanDistP: 37.7   meanDistT: 40.9   qualityCode: C 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):    (Warning: Unreliable solution, qualityCode=C) Nodal Plane 1: strike: 199°   dip: 39°   rake: 134° Nodal Plane 2: strike: 328°   dip: 63°   rake: 60° Quality: azimuthalGap: 60°   stationPolarityCount: 41   misfit: 0.39   stationDistributionRatio: 0.65   rmsAngDiffAccPref: 30.75   fracAcc30degPref: 0.74   qualityCode: C Method: methodID: smi:gov.usgs/focalmec/HASH_1.2

Event ID: smi:alomax.net_BETA/author/ee/event/1775183630548
Event info last updated: 2026.04.03-03:32:00 UTC
Event first association/location: 2026.04.03-02:43:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA