Early-est:     Kermadec Islands, New Zealand    2026.08.08-08:40:39.06    q:B      mb:4.7*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1786178440036.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1786178440036.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1786178440036.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: 4.7* [13]    Mwp: 4.7X [1]    Mwpd: - [0]
Region: Kermadec Islands, New Zealand
Origin Time: 2026.08.08-08:40:39.06 UTC
Hypocenter: lat: -30.33°  lon: -177.19°  [+/-17km]    depth: 84km  [+/-13km]
Location Quality: qualityCode:  B     stdErr: 2.4s   assocPhases: 24   usedPhases: 18
minDist: 1.3°   maxDist: 151.7°   AzGap: 148°   2ndAzGap: 208°   atten: -1.30 [+/-0.38]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 9km   maxHorUnc: 17km   azMaxHorUnc: 80°
68%ConfEllipsoid:   semiMajorAxisLength: 21km   majorAxisAzimuth: 79°   majorAxisPlunge: 9°   semiIntermediateAxisLength: 13km   intermediateAxisAzimuth: 300°   intermediateAxisPlunge: 78°   semiMinorAxisLength: 11km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.5 [9]    Td: -s [0]    Td*T50Ex: - [0]    To: 5.4s [9]
Closest plate boundaries:
   Kermadec / Pacific [subduction zone]: distance: ~60km
   Kermadec - Australia [continental rift boundary]: distance: ~190km
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 (60km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       84km
       84km
       84km
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.1786178440036.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 162°   dip: 41°   rake: 51°
Nodal Plane 2: strike: 30°   dip: 60°   rake: 118°
Quality: azimuthalGap: -1°   stationPolarityCount: 16   misfitWeightCount: 5.1   misfit: 0.06   stationDistributionRatio: 0.38   meanDistP: 55.6   meanDistT: 49.3   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1786178440036.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.1786178440036.mech.fmamp_polarity_waveform.mechanism.jpg
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: 213°   stationPolarityCount: 16   misfit: 0.99   stationDistributionRatio: 0.00   rmsAngDiffAccPref: 0.00   fracAcc30degPref: 0.00   qualityCode: E
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1786178440036.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1786178440036
Event info last updated: 2026.08.08-09:39:01 UTC
Event first association/location: 2026.08.08-08:46:08 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA