Early-est:     Tanimbar Islands Reg., Indonesia    2025.08.06-19:28:35.03    q:C      mb:4.7*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1754508515157.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1754508515157.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1754508515157.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* [15]    Mwp: - [0]    Mwpd: - [0]
Region: Tanimbar Islands Reg., Indonesia
Origin Time: 2025.08.06-19:28:35.03 UTC
Hypocenter: lat: -6.67°  lon: 131.62°  [+/-19km]    depth: 15km  [+/-32km]
Location Quality: qualityCode:  C     stdErr: 2.3s   assocPhases: 44   usedPhases: 17
minDist: 3.8°   maxDist: 86.5°   AzGap: 114°   2ndAzGap: 125°   atten: -0.84 [+/-0.31]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 14km   maxHorUnc: 19km   azMaxHorUnc: 149°
68%ConfEllipsoid:   semiMajorAxisLength: 36km   majorAxisAzimuth: 332°   majorAxisPlunge: 59°   semiIntermediateAxisLength: 17km   intermediateAxisAzimuth: 110°   intermediateAxisPlunge: 24°   semiMinorAxisLength: 16km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: 95%
T50Ex: 0.7 [13]    Td: 1.1Xs [2]    Td*T50Ex: - [0]    To: 76.4s [10]
Closest plate boundaries:
   Banda Sea - Timor [continental convergent boundary]: distance: ~10km
   Timor - Australia [continental rift boundary]: distance: ~100km
   Banda Sea - Australia [continental transform fault]: distance: ~120km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 no
 YES (10km)
 no
Prob underwater:
 95%
 95%
 95%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       15km
       15km
       15km
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.1754508515157.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 152°   dip: 64°   rake: -24°
Nodal Plane 2: strike: 252°   dip: 69°   rake: -152°
Quality: azimuthalGap: -1°   stationPolarityCount: 13   misfitWeightCount: 5.6   misfit: 0.02   stationDistributionRatio: 0.29   meanDistP: 46.2   meanDistT: 50.3   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1754508515157.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.1754508515157.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 65°   dip: 87°   rake: 156°
Nodal Plane 2: strike: 156°   dip: 66°   rake: 3°
Quality: azimuthalGap: 124°   stationPolarityCount: 13   misfit: 0.14   stationDistributionRatio: 0.82   rmsAngDiffAccPref: 40.60   fracAcc30degPref: 0.53   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1754508515157.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1754508515157
Event info last updated: 2025.08.06-20:27:02 UTC
Event first association/location: 2025.08.06-19:34:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA