Early-est:     Flores Sea    2026.08.15-23:13:01.11    q:C      mb:4.9*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1786835577339.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1786835577339.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1786835577339.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* [12]    Mwp: - [0]    Mwpd: - [0]
Region: Flores Sea
Origin Time: 2026.08.15-23:13:01.11 UTC
Hypocenter: lat: -7.33°  lon: 121.20°  [+/-50km]    depth: 30km  [+/-24km]
Location Quality: qualityCode:  C     stdErr: 2.0s   assocPhases: 24   usedPhases: 12
minDist: 1.7°   maxDist: 154.6°   AzGap: 136°   2ndAzGap: 144°   atten: -0.81 [+/-0.59]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 28km   maxHorUnc: 50km   azMaxHorUnc: 43°
68%ConfEllipsoid:   semiMajorAxisLength: 63km   majorAxisAzimuth: 43°   majorAxisPlunge: 5°   semiIntermediateAxisLength: 34km   intermediateAxisAzimuth: 313°   intermediateAxisPlunge: 1°   semiMinorAxisLength: 23km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: 97%
T50Ex: 0.6 [12]    Td: -s [0]    Td*T50Ex: - [0]    To: 19.6s [12]
Closest plate boundaries:
   Banda Sea - Timor [oceanic convergent boundary]: distance: ~70km
   Banda Sea - Sunda [continental transform fault]: distance: ~80km
   Sunda - Timor [continental transform fault]: distance: ~90km
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 (70km)
 YES (80km)
Prob underwater:
 97%
 97%
 97%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       30km
       30km
       30km
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.1786835577339.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 30°   dip: 56°   rake: 156°
Nodal Plane 2: strike: 134°   dip: 70°   rake: 36°
Quality: azimuthalGap: -1°   stationPolarityCount: 15   misfitWeightCount: 4.7   misfit: 0.06   stationDistributionRatio: 0.37   meanDistP: 54.2   meanDistT: 47.8   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1786835577339.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.1786835577339.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):
Nodal Plane 1: strike: 34°   dip: 67°   rake: 165°
Nodal Plane 2: strike: 130°   dip: 76°   rake: 24°
Quality: azimuthalGap: 136°   stationPolarityCount: 15   misfit: 0.40   stationDistributionRatio: 0.79   rmsAngDiffAccPref: 23.17   fracAcc30degPref: 0.91   qualityCode: B
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1786835577339.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1786835577339
Event info last updated: 2026.08.16-00:12:00 UTC
Event first association/location: 2026.08.15-23:19:00 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA