Early-est:     Timor Region    2025.08.06-09:33:09.41    q:B      mb:4.6*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1754472786558.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1754472786558.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1754472786558.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* [16]    Mwp: - [0]    Mwpd: - [0]
Region: Timor Region
Origin Time: 2025.08.06-09:33:09.41 UTC
Hypocenter: lat: -8.08°  lon: 127.74°  [+/-15km]    depth: 87km  [+/-17km]
Location Quality: qualityCode:  B     stdErr: 0.8s   assocPhases: 24   usedPhases: 16
minDist: 3.8°   maxDist: 158.6°   AzGap: 209°   2ndAzGap: 229°   atten: -1.91 [+/-0.26]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 10km   maxHorUnc: 15km   azMaxHorUnc: 171°
68%ConfEllipsoid:   semiMajorAxisLength: 19km   majorAxisAzimuth: 171°   majorAxisPlunge: 2°   semiIntermediateAxisLength: 17km   intermediateAxisAzimuth: 332°   intermediateAxisPlunge: 88°   semiMinorAxisLength: 12km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.9 [10]    Td: 0.4Xs [2]    Td*T50Ex: - [0]    To: 126.0s [10]
Closest plate boundaries:
   Banda Sea - Timor [oceanic convergent boundary]: distance: ~110km
   Timor - Australia [oceanic 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 (110km)
 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.1754472786558.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):
Nodal Plane 1: strike: 26°   dip: 33°   rake: 148°
Nodal Plane 2: strike: 143°   dip: 74°   rake: 61°
Quality: azimuthalGap: -1°   stationPolarityCount: 16   misfitWeightCount: 10.2   misfit: 0.00   stationDistributionRatio: 0.49   meanDistP: 24.4   meanDistT: 27.7   qualityCode: B
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1754472786558.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.1754472786558.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):
Nodal Plane 1: strike: 24°   dip: 30°   rake: 145°
Nodal Plane 2: strike: 145°   dip: 73°   rake: 65°
Quality: azimuthalGap: 108°   stationPolarityCount: 16   misfit: 0.05   stationDistributionRatio: 0.67   rmsAngDiffAccPref: 14.83   fracAcc30degPref: 0.96   qualityCode: B
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1754472786558.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1754472786558
Event info last updated: 2025.08.06-10:32:00 UTC
Event first association/location: 2025.08.06-09:38:02 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA