Early-est:     Savu Sea    2026.08.17-09:16:19.14    q:C      mb:4.9*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1786958169626.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1786958169626.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1786958169626.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: 4.9* [10]    Mwp: - [0]    Mwpd: - [0]
Region: Savu Sea
Origin Time: 2026.08.17-09:16:19.14 UTC
Hypocenter: lat: -9.12°  lon: 122.00°  [+/-82km]    depth: 52km  [+/-35km]
Location Quality: qualityCode:  C     stdErr: 1.8s   assocPhases: 31   usedPhases: 13
minDist: 0.5°   maxDist: 86.1°   AzGap: 143°   2ndAzGap: 186°   atten: -1.26 [+/-0.39]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 31km   maxHorUnc: 82km   azMaxHorUnc: 164°
68%ConfEllipsoid:   semiMajorAxisLength: 103km   majorAxisAzimuth: 164°   majorAxisPlunge: 7°   semiIntermediateAxisLength: 41km   intermediateAxisAzimuth: 70°   intermediateAxisPlunge: 27°   semiMinorAxisLength: 30km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.5 [8]    Td: 0.5Xs [1]    Td*T50Ex: - [0]    To: 1.9s [8]
Closest plate boundaries:
   Banda Sea - Timor [oceanic convergent boundary]: distance: ~120km
   Sunda - Timor [continental transform fault]: distance: ~140km
Subduction geometry:    Zone: Sumatra-Java: DEBUG: error: [Errno 2] No such file or directory: 'gmt'    Slab depth at epicenter: error: evaluating slab depth: -999.9
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 no
 YES (120km)
 YES (140km)
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       52km
       52km
       52km
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.1786958169626.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 131°   dip: 7°   rake: 0°
Nodal Plane 2: strike: 41°   dip: 90°   rake: 97°
Quality: azimuthalGap: -1°   stationPolarityCount: 15   misfitWeightCount: 5.9   misfit: 0.05   stationDistributionRatio: 0.61   meanDistP: 38.9   meanDistT: 40.8   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1786958169626.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.1786958169626.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (No solution available)
Nodal Plane 1: strike: 999°   dip: 99°   rake: 999°
Nodal Plane 2: strike: 324°   dip: 13°   rake: 135°
Quality: azimuthalGap: 179°   stationPolarityCount: 15   misfit: 0.99   stationDistributionRatio: 0.00   rmsAngDiffAccPref: 0.00   fracAcc30degPref: 0.00   qualityCode: E
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1786958169626.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1786958169626
Event info last updated: 2026.08.17-10:15:00 UTC
Event first association/location: 2026.08.17-09:20:00 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA