Early-est:     Banda Sea    2025.06.22-09:28:38.48    q:B      mb:4.3*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1750584519181.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1750584519181.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1750584519181.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: 4.3* [4]    Mwp: - [0]    Mwpd: - [0]
Region: Banda Sea
Origin Time: 2025.06.22-09:28:38.48 UTC
Hypocenter: lat: -7.83°  lon: 128.41°  [+/-13km]    depth: 23km  [+/-13km]
Location Quality: qualityCode:  B     stdErr: 2.2s   assocPhases: 18   usedPhases: 13
minDist: 4.5°   maxDist: 148.8°   AzGap: 110°   2ndAzGap: 187°   atten: -1.70 [+/-0.50]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 13km   maxHorUnc: 13km   azMaxHorUnc: 144°
68%ConfEllipsoid:   semiMajorAxisLength: 17km   majorAxisAzimuth: 324°   majorAxisPlunge: 11°   semiIntermediateAxisLength: 16km   intermediateAxisAzimuth: 234°   intermediateAxisPlunge: 0°   semiMinorAxisLength: 13km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.8 [4]    Td: 4.3Xs [1]    Td*T50Ex: - [0]    To: 176.7s [4]
Closest plate boundaries:
   Banda Sea - Timor [oceanic convergent boundary]: distance: ~110km
   Timor - Australia [continental transform fault]: distance: ~140km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 no
 YES (110km)
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       23km
       23km
       23km
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.1750584519181.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 7°   dip: 64°   rake: 157°
Nodal Plane 2: strike: 108°   dip: 70°   rake: 28°
Quality: azimuthalGap: -1°   stationPolarityCount: 9   misfitWeightCount: 4.7   misfit: 0.00   stationDistributionRatio: 0.50   meanDistP: 50.6   meanDistT: 39.1   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1750584519181.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.1750584519181.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 190°   dip: 88°   rake: -148°
Nodal Plane 2: strike: 99°   dip: 58°   rake: -2°
Quality: azimuthalGap: 110°   stationPolarityCount: 9   misfit: 0.15   stationDistributionRatio: 0.78   rmsAngDiffAccPref: 38.27   fracAcc30degPref: 0.42   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1750584519181.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1750584519181
Event info last updated: 2025.06.22-10:27:00 UTC
Event first association/location: 2025.06.22-09:33:06 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA