Early-est:     Greece    2026.09.30-05:20:59.81    q:B      mb:4.8*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1790745660833.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1790745660833.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1790745660833.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* [8]    Mwp: - [0]    Mwpd: - [0]
Region: Greece
Origin Time: 2026.09.30-05:20:59.81 UTC
Hypocenter: lat: 38.30°  lon: 23.40°  [+/-4km]    depth: 12km  [+/-5km]
Location Quality: qualityCode:  B     stdErr: 1.4s   assocPhases: 14   usedPhases: 14
minDist: 1.9°   maxDist: 81.7°   AzGap: 112°   2ndAzGap: 147°   atten: -0.90 [+/-0.24]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 4km   maxHorUnc: 4km   azMaxHorUnc: 79°
68%ConfEllipsoid:   semiMajorAxisLength: 6km   majorAxisAzimuth: 222°   majorAxisPlunge: 55°   semiIntermediateAxisLength: 5km   intermediateAxisAzimuth: 110°   intermediateAxisPlunge: 14°   semiMinorAxisLength: 4km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 0.4 [8]    Td: 1.2Xs [1]    Td*T50Ex: - [0]    To: 4.4s [8]
Closest plate boundaries:
   Aegean Sea - Eurasia [continental transform fault]: distance: ~50km
   Aegean Sea / Africa [subduction zone]: distance: ~260km
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 (50km)
Prob underwater:
 <1%
 <1%
 <1%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       12km
       12km
       12km
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.1790745660833.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 112°   dip: 20°   rake: 72°
Nodal Plane 2: strike: 310°   dip: 71°   rake: 96°
Quality: azimuthalGap: -1°   stationPolarityCount: 13   misfitWeightCount: 3.6   misfit: 0.03   stationDistributionRatio: 0.49   meanDistP: 45.0   meanDistT: 49.2   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1790745660833.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.1790745660833.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 68°   dip: 35°   rake: 28°
Nodal Plane 2: strike: 315°   dip: 74°   rake: 122°
Quality: azimuthalGap: 120°   stationPolarityCount: 13   misfit: 0.10   stationDistributionRatio: 0.77   rmsAngDiffAccPref: 38.53   fracAcc30degPref: 0.46   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1790745660833.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1790745660833
Event info last updated: 2026.09.30-06:19:00 UTC
Event first association/location: 2026.09.30-05:23:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA