Early-est:     Banda Sea    2025.08.05-20:18:42.74    q:B      mb:4.8*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1754425122722.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1754425122722.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1754425122722.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* [14]    Mwp: - [0]    Mwpd: - [0]
Region: Banda Sea
Origin Time: 2025.08.05-20:18:42.74 UTC
Hypocenter: lat: -6.79°  lon: 129.79°  [+/-14km]    depth: 137km  [+/-17km]
Location Quality: qualityCode:  B     stdErr: 1.1s   assocPhases: 28   usedPhases: 14
minDist: 4.6°   maxDist: 150.9°   AzGap: 76°   2ndAzGap: 95°   atten: -1.41 [+/-0.31]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 12km   maxHorUnc: 14km   azMaxHorUnc: 61°
68%ConfEllipsoid:   semiMajorAxisLength: 17km   majorAxisAzimuth: 51°   majorAxisPlunge: 45°   semiIntermediateAxisLength: 16km   intermediateAxisAzimuth: 254°   intermediateAxisPlunge: 43°   semiMinorAxisLength: 15km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.4 [13]    Td: 0.2Xs [1]    Td*T50Ex: - [0]    To: 1.5s [13]
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:
       137km
       137km
       137km
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.1754425122722.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 230°   dip: 54°   rake: 23°
Nodal Plane 2: strike: 126°   dip: 72°   rake: 142°
Quality: azimuthalGap: -1°   stationPolarityCount: 17   misfitWeightCount: 7.2   misfit: 0.15   stationDistributionRatio: 0.67   meanDistP: 49.8   meanDistT: 50.3   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1754425122722.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.1754425122722.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 151°   dip: 88°   rake: 148°
Nodal Plane 2: strike: 243°   dip: 58°   rake: 2°
Quality: azimuthalGap: 119°   stationPolarityCount: 17   misfit: 0.33   stationDistributionRatio: 0.71   rmsAngDiffAccPref: 34.12   fracAcc30degPref: 0.59   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1754425122722.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1754425122722
Event info last updated: 2025.08.05-21:17:04 UTC
Event first association/location: 2025.08.05-20:24:03 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA