Early-est:     Greece - Albania Border Region    2026.04.03-14:22:21.46    q:A      mb:4.6*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1775226138491.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1775226138491.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1775226138491.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: 4.6* [23]    Mwp: 5.0X [1]    Mwpd: - [0]
Region: Greece - Albania Border Region
Origin Time: 2026.04.03-14:22:21.46 UTC
Hypocenter: lat: 39.75°  lon: 20.48°  [+/-10km]    depth: 12km  [+/-7km]
Location Quality: qualityCode:  A     stdErr: 1.4s   assocPhases: 53   usedPhases: 33
minDist: 1.6°   maxDist: 81.8°   AzGap: 50°   2ndAzGap: 95°   atten: -1.46 [+/-0.20]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 4km   maxHorUnc: 10km   azMaxHorUnc: 85°
68%ConfEllipsoid:   semiMajorAxisLength: 13km   majorAxisAzimuth: 85°   majorAxisPlunge: 7°   semiIntermediateAxisLength: 7km   intermediateAxisAzimuth: 283°   intermediateAxisPlunge: 82°   semiMinorAxisLength: 5km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 0.5 [17]    Td: 0.6Xs [1]    Td*T50Ex: - [0]    To: 15.9s [15]
Closest plate boundaries:
   Aegean Sea - Eurasia [continental transform fault]: distance: ~140km
   Eurasia - Africa [oceanic convergent boundary]: distance: ~180km
   Eurasia / Africa [subduction zone]: distance: ~210km
   Aegean Sea / Africa [subduction zone]: distance: ~220km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 YES (210km)
 no
 no
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.1775226138491.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 42°   dip: 52°   rake: 153°
Nodal Plane 2: strike: 150°   dip: 69°   rake: 42°
Quality: azimuthalGap: -1°   stationPolarityCount: 27   misfitWeightCount: 10.3   misfit: 0.16   stationDistributionRatio: 0.54   meanDistP: 47.1   meanDistT: 38.7   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1775226138491.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.1775226138491.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 268°   dip: 39°   rake: 41°
Nodal Plane 2: strike: 144°   dip: 66°   rake: 122°
Quality: azimuthalGap: 66°   stationPolarityCount: 27   misfit: 0.36   stationDistributionRatio: 0.71   rmsAngDiffAccPref: 44.20   fracAcc30degPref: 0.41   qualityCode: D
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1775226138491.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1775226138491
Event info last updated: 2026.04.03-15:21:00 UTC
Event first association/location: 2026.04.03-14:24:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA