Early-est:     Greece    2026.10.04-17:50:25.68    q:B      mb:-    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1791136225677.mech.fmamp_polarity.thumb.jpg     hash:./hypo.1791136225677.mech.hash.thumb.jpg     fmamp_amp_aref:./hypo.1791136225677.mech.fmamp_amp_aref.thumb.jpg     fmamp_amp_mwp:./hypo.1791136225677.mech.fmamp_amp_mwp.thumb.jpg

Automatic solution - this event has not been reviewed by a seismologist
Automatically determined event information may be incorrect!

Earthquake Details:
Magnitude: mb: 5.7X [1]    Mwp: 5.3X [1]    Mwpd: - [0]
Region: Greece
Origin Time: 2026.10.04-17:50:25.68 UTC
Hypocenter: lat: 38.62°  lon: 23.49°  [+/-16km]    depth: 10km  [+/-14km]
Location Quality: qualityCode:  B     stdErr: 1.5s   assocPhases: 10   usedPhases: 9
minDist: 0.6°   maxDist: 14.5°   AzGap: 137°   2ndAzGap: 210°   atten: -9.90 [+/-0.00]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 11km   maxHorUnc: 16km   azMaxHorUnc: 7°
68%ConfEllipsoid:   semiMajorAxisLength: 20km   majorAxisAzimuth: 187°   majorAxisPlunge: 3°   semiIntermediateAxisLength: 14km   intermediateAxisAzimuth: 85°   intermediateAxisPlunge: 75°   semiMinorAxisLength: 13km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: 93%
T50Ex: 0.3X [1]    Td: 0.2Xs [1]    Td*T50Ex: - [0]    To: -s [0]
Closest plate boundaries:
   Aegean Sea - Eurasia [continental transform fault]: distance: ~40km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 no
 no
 YES (40km)
Prob underwater:
 93%
 93%
 93%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       10km
       10km
       10km
Slab depth at epicenter:
       n/a
       -
       -
./hypo.1791136225677.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 177°   dip: 16°   rake: 170°
Nodal Plane 2: strike: 277°   dip: 87°   rake: 74°
Quality: azimuthalGap: -1°   stationPolarityCount: 9   misfitWeightCount: 6.0   misfit: 0.08   stationDistributionRatio: 0.36   meanDistP: 31.1   meanDistT: 47.1   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1791136225677.mech.fmamp_polarity.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 247°   dip: 24°   rake: -116°
Nodal Plane 2: strike: 96°   dip: 69°   rake: -79°
Quality: azimuthalGap: 93°   stationPolarityCount: 9   misfit: 0.36   stationDistributionRatio: 0.74   rmsAngDiffAccPref: 43.50   fracAcc30degPref: 0.46   qualityCode: D
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1791136225677.mech.hash.mechanism.jpg
First-motion Focal Mechanism (FMAMP_AMP_AREF):    (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/_amp_aref
./hypo.1791136225677.mech.fmamp_amp_aref.mechanism.jpg
First-motion Focal Mechanism (FMAMP_AMP_MWP):    (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/_amp_mwp
./hypo.1791136225677.mech.fmamp_amp_mwp.mechanism.jpg

Event ID: smi:KOERI/ee/event/1791136225677
Event info last updated: 2026.10.04-18:50:34 UTC
Event first association/location: 2026.10.04-18:30:20 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI