Early-est:     Greece - Albania Border Region    2026.06.20-03:37:12.41    q:A      mb:4.2*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1781926631084.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1781926631084.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1781926631084.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: 4.2* [20]    Mwp: - [0]    Mwpd: - [0]
Region: Greece - Albania Border Region
Origin Time: 2026.06.20-03:37:12.41 UTC
Hypocenter: lat: 39.65°  lon: 20.59°  [+/-6km]    depth: 9km  [+/-4km]
Location Quality: qualityCode:  A     stdErr: 1.0s   assocPhases: 39   usedPhases: 31
minDist: 1.5°   maxDist: 161.4°   AzGap: 99°   2ndAzGap: 132°   atten: -1.43 [+/-0.51]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 4km   maxHorUnc: 6km   azMaxHorUnc: 146°
68%ConfEllipsoid:   semiMajorAxisLength: 7km   majorAxisAzimuth: 146°   majorAxisPlunge: 2°   semiIntermediateAxisLength: 5km   intermediateAxisAzimuth: 236°   intermediateAxisPlunge: 2°   semiMinorAxisLength: 4km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 0.7 [18]    Td: 1.3Xs [1]    Td*T50Ex: - [0]    To: 14.5s [16]
Closest plate boundaries:
   Aegean Sea - Eurasia [continental transform fault]: distance: ~130km
   Eurasia - Africa [oceanic convergent boundary]: distance: ~180km
   Eurasia / Africa [subduction zone]: distance: ~200km
   Aegean Sea / Africa [subduction zone]: distance: ~210km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 YES (200km)
 no
 no
Prob underwater:
 <1%
 <1%
 <1%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       9km
       9km
       9km
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.1781926631084.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 123°   dip: 42°   rake: -14°
Nodal Plane 2: strike: 224°   dip: 81°   rake: -131°
Quality: azimuthalGap: -1°   stationPolarityCount: 21   misfitWeightCount: 6.0   misfit: 0.07   stationDistributionRatio: 0.55   meanDistP: 49.9   meanDistT: 31.8   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1781926631084.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.1781926631084.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 252°   dip: 64°   rake: -93°
Nodal Plane 2: strike: 79°   dip: 26°   rake: -84°
Quality: azimuthalGap: 112°   stationPolarityCount: 19   misfit: 0.25   stationDistributionRatio: 0.66   rmsAngDiffAccPref: 38.24   fracAcc30degPref: 0.55   qualityCode: D
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1781926631084.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1781926631084
Event info last updated: 2026.06.20-04:36:01 UTC
Event first association/location: 2026.06.20-03:39:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA