Early-est:     Greece - Albania Border Region    2026.04.03-06:51:18.29    q:A      mb:4.5*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1775199078376.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1775199078376.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1775199078376.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: 4.5* [8]    Mwp: - [0]    Mwpd: - [0]
Region: Greece - Albania Border Region
Origin Time: 2026.04.03-06:51:18.29 UTC
Hypocenter: lat: 39.51°  lon: 20.66°  [+/-5km]    depth: 19km  [+/-5km]
Location Quality: qualityCode:  A     stdErr: 1.0s   assocPhases: 19   usedPhases: 16
minDist: 1.5°   maxDist: 19.4°   AzGap: 158°   2ndAzGap: 209°   atten: -1.94 [+/-0.33]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 3km   maxHorUnc: 5km   azMaxHorUnc: 4°
68%ConfEllipsoid:   semiMajorAxisLength: 6km   majorAxisAzimuth: 9°   majorAxisPlunge: 33°   semiIntermediateAxisLength: 5km   intermediateAxisAzimuth: 167°   intermediateAxisPlunge: 54°   semiMinorAxisLength: 4km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 0.5 [7]    Td: -s [0]    Td*T50Ex: - [0]    To: 7.3s [6]
Closest plate boundaries:
   Aegean Sea - Eurasia [continental transform fault]: distance: ~120km
   Eurasia - Africa [oceanic convergent boundary]: distance: ~170km
   Eurasia / Africa [subduction zone]: distance: ~190km
   Aegean Sea / Africa [subduction zone]: distance: ~190km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 YES (190km)
 no
 no
Prob underwater:
 <1%
 <1%
 <1%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       19km
       19km
       19km
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.1775199078376.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 174°   dip: 24°   rake: 0°
Nodal Plane 2: strike: 84°   dip: 90°   rake: 114°
Quality: azimuthalGap: -1°   stationPolarityCount: 15   misfitWeightCount: 4.0   misfit: 0.06   stationDistributionRatio: 0.46   meanDistP: 53.6   meanDistT: 49.5   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1775199078376.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.1775199078376.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (No solution available)
Nodal Plane 1: strike: 999°   dip: 99°   rake: 999°
Nodal Plane 2: strike: 324°   dip: 13°   rake: 135°
Quality: azimuthalGap: 158°   stationPolarityCount: 15   misfit: 0.99   stationDistributionRatio: 0.00   rmsAngDiffAccPref: 0.00   fracAcc30degPref: 0.00   qualityCode: E
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1775199078376.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1775199078376
Event info last updated: 2026.04.03-07:50:01 UTC
Event first association/location: 2026.04.03-06:53:02 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA