Early-est:     Flores Sea    2026.08.16-17:26:19.68    q:B      mb:4.8*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1786901179524.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1786901179524.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1786901179524.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* [12]    Mwp: - [0]    Mwpd: - [0]
Region: Flores Sea
Origin Time: 2026.08.16-17:26:19.68 UTC
Hypocenter: lat: -7.88°  lon: 120.54°  [+/-13km]    depth: 30km  [+/-19km]
Location Quality: qualityCode:  B     stdErr: 1.5s   assocPhases: 34   usedPhases: 15
minDist: 1.8°   maxDist: 70.8°   AzGap: 94°   2ndAzGap: 125°   atten: -0.80 [+/-0.50]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 12km   maxHorUnc: 13km   azMaxHorUnc: 75°
68%ConfEllipsoid:   semiMajorAxisLength: 20km   majorAxisAzimuth: 9°   majorAxisPlunge: 72°   semiIntermediateAxisLength: 16km   intermediateAxisAzimuth: 264°   intermediateAxisPlunge: 5°   semiMinorAxisLength: 15km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.6 [13]    Td: 0.1Xs [1]    Td*T50Ex: - [0]    To: 31.3s [13]
Closest plate boundaries:
   Banda Sea - Sunda [continental transform fault]: distance: ~10km
   Sunda - Timor [continental transform fault]: distance: ~10km
   Banda Sea - Timor [oceanic convergent boundary]: distance: ~10km
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 (10km)
 YES (10km)
Prob underwater:
 >99%
 >99%
 >99%
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.1786901179524.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 14°   dip: 71°   rake: -6°
Nodal Plane 2: strike: 106°   dip: 84°   rake: -161°
Quality: azimuthalGap: -1°   stationPolarityCount: 11   misfitWeightCount: 3.7   misfit: 0.03   stationDistributionRatio: 0.45   meanDistP: 54.2   meanDistT: 53.2   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1786901179524.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.1786901179524.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 295°   dip: 37°   rake: -126°
Nodal Plane 2: strike: 157°   dip: 61°   rake: -66°
Quality: azimuthalGap: 134°   stationPolarityCount: 12   misfit: 0.35   stationDistributionRatio: 0.67   rmsAngDiffAccPref: 43.65   fracAcc30degPref: 0.39   qualityCode: D
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1786901179524.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1786901179524
Event info last updated: 2026.08.16-18:25:00 UTC
Event first association/location: 2026.08.16-17:32:00 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA