Early-est:     Banda Sea    2026.06.24-03:26:59.08    q:C      mb:4.8*    Mwp:-    Mwpd:-    Td*T50Ex:0.0     fmamp_polarity:./hypo.1782271618954.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1782271618954.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1782271618954.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* [25]    Mwp: - [0]    Mwpd: - [0]
Region: Banda Sea
Origin Time: 2026.06.24-03:26:59.08 UTC
Hypocenter: lat: -6.53°  lon: 128.61°  [+/-47km]    depth: 343km  [+/-34km]
Location Quality: qualityCode:  C     stdErr: 1.5s   assocPhases: 56   usedPhases: 19
minDist: 5.1°   maxDist: 151.8°   AzGap: 72°   2ndAzGap: 100°   atten: -1.28 [+/-0.31]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 27km   maxHorUnc: 47km   azMaxHorUnc: 156°
68%ConfEllipsoid:   semiMajorAxisLength: 59km   majorAxisAzimuth: 157°   majorAxisPlunge: 14°   semiIntermediateAxisLength: 36km   intermediateAxisAzimuth: 258°   intermediateAxisPlunge: 35°   semiMinorAxisLength: 29km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.0 [16]    Td: 0.3s [4]    Td*T50Ex: 0.0 [4]    To: 1.6s [16]
Closest plate boundaries:
   Banda Sea - Timor [oceanic convergent boundary]: distance: ~20km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 no
 YES (20km)
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   0.0
   0.0
   0.0
Td*To:
     0.5
     0.5
     0.5
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       343km
       343km
       343km
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.1782271618954.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 54°   dip: 8°   rake: 168°
Nodal Plane 2: strike: 156°   dip: 88°   rake: 82°
Quality: azimuthalGap: -1°   stationPolarityCount: 20   misfitWeightCount: 7.5   misfit: 0.20   stationDistributionRatio: 0.45   meanDistP: 51.7   meanDistT: 48.1   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1782271618954.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.1782271618954.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 281°   dip: 32°   rake: 70°
Nodal Plane 2: strike: 124°   dip: 60°   rake: 102°
Quality: azimuthalGap: 100°   stationPolarityCount: 20   misfit: 0.37   stationDistributionRatio: 0.76   rmsAngDiffAccPref: 42.38   fracAcc30degPref: 0.49   qualityCode: D
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1782271618954.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1782271618954
Event info last updated: 2026.06.24-04:25:00 UTC
Event first association/location: 2026.06.24-03:31:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA