Early-est:     Greece    2026.10.04-22:17:08.74    q:A      mb:-    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1791152230416.mech.fmamp_polarity.thumb.jpg     hash:./hypo.1791152230416.mech.hash.thumb.jpg     fmamp_amp_aref:./hypo.1791152230416.mech.fmamp_amp_aref.thumb.jpg     fmamp_amp_mwp:./hypo.1791152230416.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: 3.7X [3]    Mwp: - [0]    Mwpd: 6.8Xinv [1]
Region: Greece
Origin Time: 2026.10.04-22:17:08.74 UTC
Hypocenter: lat: 38.73°  lon: 23.45°  [+/-2km]    depth: 10km  [+/-2km]
Location Quality: qualityCode:  A     stdErr: 0.8s   assocPhases: 20   usedPhases: 14
minDist: 0.5°   maxDist: 83.8°   AzGap: 84°   2ndAzGap: 132°   atten: -2.05 [+/-0.32]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 2km   maxHorUnc: 2km   azMaxHorUnc: 132°
68%ConfEllipsoid:   semiMajorAxisLength: 2km   majorAxisAzimuth: 311°   majorAxisPlunge: 18°   semiIntermediateAxisLength: 2km   intermediateAxisAzimuth: 220°   intermediateAxisPlunge: 1°   semiMinorAxisLength: 2km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: 58%
T50Ex: 0.1X [1]    Td: -s [0]    Td*T50Ex: - [0]    To: 36.8Xs [1]
Closest plate boundaries:
   Aegean Sea - Eurasia [continental transform fault]: distance: ~30km
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 (30km)
Prob underwater:
 58%
 58%
 58%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       10km
       10km
       10km
Slab depth at epicenter:
       n/a
       -
       -
./hypo.1791152230416.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 167°   dip: 36°   rake: 63°
Nodal Plane 2: strike: 20°   dip: 58°   rake: 109°
Quality: azimuthalGap: -1°   stationPolarityCount: 15   misfitWeightCount: 7.1   misfit: 0.04   stationDistributionRatio: 0.45   meanDistP: 39.8   meanDistT: 25.7   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1791152230416.mech.fmamp_polarity.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 21°   dip: 45°   rake: 136°
Nodal Plane 2: strike: 144°   dip: 61°   rake: 54°
Quality: azimuthalGap: 105°   stationPolarityCount: 15   misfit: 0.22   stationDistributionRatio: 0.68   rmsAngDiffAccPref: 42.72   fracAcc30degPref: 0.46   qualityCode: D
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1791152230416.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.1791152230416.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.1791152230416.mech.fmamp_amp_mwp.mechanism.jpg

Event ID: smi:KOERI/ee/event/1791152230416
Event info last updated: 2026.10.04-23:17:18 UTC
Event first association/location: 2026.10.04-22:18:02 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI