Early-est:     Banda Sea    2026.06.23-20:09:10.10    q:C      mb:4.6*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1782245349943.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1782245349943.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1782245349943.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: 4.6* [10]    Mwp: - [0]    Mwpd: - [0]
Region: Banda Sea
Origin Time: 2026.06.23-20:09:10.10 UTC
Hypocenter: lat: -5.94°  lon: 130.75°  [+/-19km]    depth: 87km  [+/-24km]
Location Quality: qualityCode:  C     stdErr: 0.4s   assocPhases: 31   usedPhases: 7
minDist: 3.4°   maxDist: 117.9°   AzGap: 140°   2ndAzGap: 179°   atten: -1.41 [+/-0.30]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 12km   maxHorUnc: 19km   azMaxHorUnc: 90°
68%ConfEllipsoid:   semiMajorAxisLength: 28km   majorAxisAzimuth: 87°   majorAxisPlunge: 49°   semiIntermediateAxisLength: 19km   intermediateAxisAzimuth: 277°   intermediateAxisPlunge: 41°   semiMinorAxisLength: 15km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.6 [6]    Td: 0.2Xs [2]    Td*T50Ex: - [0]    To: 5.8s [6]
Closest plate boundaries:
   Banda Sea - Timor [continental convergent boundary]: distance: ~90km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 no
 YES (90km)
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       87km
       87km
       87km
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.1782245349943.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 120°   dip: 21°   rake: -127°
Nodal Plane 2: strike: 339°   dip: 74°   rake: -77°
Quality: azimuthalGap: -1°   stationPolarityCount: 10   misfitWeightCount: 3.4   misfit: 0.00   stationDistributionRatio: 0.44   meanDistP: 53.2   meanDistT: 51.9   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1782245349943.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.1782245349943.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: 189°   stationPolarityCount: 10   misfit: 0.99   stationDistributionRatio: 0.00   rmsAngDiffAccPref: 0.00   fracAcc30degPref: 0.00   qualityCode: E
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1782245349943.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1782245349943
Event info last updated: 2026.06.23-21:08:00 UTC
Event first association/location: 2026.06.23-20:18:00 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA