Early-est:     Kermadec Islands, New Zealand    2026.09.24-22:23:02.56    q:C      mb:4.8*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1790288582216.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1790288582216.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1790288582216.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: 4.8* [11]    Mwp: - [0]    Mwpd: - [0]
Region: Kermadec Islands, New Zealand
Origin Time: 2026.09.24-22:23:02.56 UTC
Hypocenter: lat: -29.74°  lon: -177.14°  [+/-37km]    depth: 90km  [+/-60km]
Location Quality: qualityCode:  C     stdErr: 1.7s   assocPhases: 44   usedPhases: 19
minDist: 9.5°   maxDist: 157.1°   AzGap: 119°   2ndAzGap: 191°   atten: -2.16 [+/-0.62]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 14km   maxHorUnc: 37km   azMaxHorUnc: 167°
68%ConfEllipsoid:   semiMajorAxisLength: 65km   majorAxisAzimuth: 166°   majorAxisPlunge: 62°   semiIntermediateAxisLength: 39km   intermediateAxisAzimuth: 347°   intermediateAxisPlunge: 28°   semiMinorAxisLength: 18km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.3 [9]    Td: -s [0]    Td*T50Ex: - [0]    To: 3.3s [9]
Closest plate boundaries:
   Kermadec / Pacific [subduction zone]: distance: ~80km
   Kermadec - Australia [continental rift boundary]: distance: ~180km
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 (80km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       90km
       90km
       90km
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.1790288582216.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 7°   dip: 30°   rake: 25°
Nodal Plane 2: strike: 255°   dip: 78°   rake: 118°
Quality: azimuthalGap: -1°   stationPolarityCount: 13   misfitWeightCount: 4.2   misfit: 0.04   stationDistributionRatio: 0.53   meanDistP: 44.8   meanDistT: 53.6   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1790288582216.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.1790288582216.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 251°   dip: 81°   rake: 127°
Nodal Plane 2: strike: 353°   dip: 37°   rake: 14°
Quality: azimuthalGap: 146°   stationPolarityCount: 13   misfit: 0.15   stationDistributionRatio: 0.63   rmsAngDiffAccPref: 39.88   fracAcc30degPref: 0.42   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1790288582216.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1790288582216
Event info last updated: 2026.09.24-23:22:00 UTC
Event first association/location: 2026.09.24-22:31:00 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA