Early-est:     Banda Sea    2026.10.01-02:09:21.33    q:C      mb:4.7*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1790820569667.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1790820569667.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1790820569667.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* [11]    Mwp: - [0]    Mwpd: - [0]
Region: Banda Sea
Origin Time: 2026.10.01-02:09:21.33 UTC
Hypocenter: lat: -6.36°  lon: 130.10°  [+/-25km]    depth: 84km  [+/-29km]
Location Quality: qualityCode:  C     stdErr: 1.1s   assocPhases: 42   usedPhases: 13
minDist: 6.6°   maxDist: 151.0°   AzGap: 153°   2ndAzGap: 188°   atten: -1.79 [+/-0.39]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 19km   maxHorUnc: 25km   azMaxHorUnc: 148°
68%ConfEllipsoid:   semiMajorAxisLength: 38km   majorAxisAzimuth: 143°   majorAxisPlunge: 41°   semiIntermediateAxisLength: 24km   intermediateAxisAzimuth: 38°   intermediateAxisPlunge: 16°   semiMinorAxisLength: 19km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.5 [8]    Td: 0.2Xs [2]    Td*T50Ex: - [0]    To: 7.9s [8]
Closest plate boundaries:
   Banda Sea - Timor [continental convergent boundary]: distance: ~30km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 no
 YES (30km)
 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.1790820569667.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 211°   dip: 19°   rake: -88°
Nodal Plane 2: strike: 29°   dip: 71°   rake: -91°
Quality: azimuthalGap: -1°   stationPolarityCount: 12   misfitWeightCount: 8.7   misfit: 0.00   stationDistributionRatio: 0.42   meanDistP: 34.5   meanDistT: 50.6   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1790820569667.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.1790820569667.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 47°   dip: 58°   rake: -100°
Nodal Plane 2: strike: 246°   dip: 34°   rake: -74°
Quality: azimuthalGap: 141°   stationPolarityCount: 12   misfit: 0.11   stationDistributionRatio: 0.69   rmsAngDiffAccPref: 35.57   fracAcc30degPref: 0.51   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1790820569667.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1790820569667
Event info last updated: 2026.10.01-03:08:00 UTC
Event first association/location: 2026.10.01-02:20:19 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA