Early-est:     Crete, Greece    2026.06.20-09:31:10.86    q:A      mb:4.9*    Mwp:-    Mwpd:-    Td*T50Ex:0.6     fmamp_polarity:./hypo.1781947870831.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1781947870831.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1781947870831.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: 4.9* [58]    Mwp: 4.9X [1]    Mwpd: 5.0Xinv [1]
Region: Crete, Greece
Origin Time: 2026.06.20-09:31:10.86 UTC
Hypocenter: lat: 34.77°  lon: 24.23°  [+/-8km]    depth: 14km  [+/-9km]
Location Quality: qualityCode:  A     stdErr: 1.6s   assocPhases: 104   usedPhases: 66
minDist: 2.5°   maxDist: 145.2°   AzGap: 114°   2ndAzGap: 164°   atten: -0.96 [+/-0.23]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 6km   maxHorUnc: 8km   azMaxHorUnc: 179°
68%ConfEllipsoid:   semiMajorAxisLength: 11km   majorAxisAzimuth: 3°   majorAxisPlunge: 39°   semiIntermediateAxisLength: 8km   intermediateAxisAzimuth: 122°   intermediateAxisPlunge: 30°   semiMinorAxisLength: 8km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.5 [54]    Td: 1.2s [12]    Td*T50Ex: 0.6 [12]    To: 20.0s [49]
Closest plate boundaries:
   Aegean Sea / Africa [subduction zone]: distance: ~40km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 YES (40km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   0.6
   0.6
   0.6
Td*To:
     24.0
     24.0
     24.0
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       14km
       14km
       14km
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.1781947870831.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 59°   dip: 36°   rake: 120°
Nodal Plane 2: strike: 203°   dip: 60°   rake: 70°
Quality: azimuthalGap: -1°   stationPolarityCount: 51   misfitWeightCount: 14.0   misfit: 0.25   stationDistributionRatio: 0.58   meanDistP: 45.3   meanDistT: 38.2   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1781947870831.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.1781947870831.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 61°   dip: 25°   rake: 140°
Nodal Plane 2: strike: 188°   dip: 74°   rake: 70°
Quality: azimuthalGap: 114°   stationPolarityCount: 51   misfit: 0.38   stationDistributionRatio: 0.76   rmsAngDiffAccPref: 39.04   fracAcc30degPref: 0.44   qualityCode: D
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1781947870831.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1781947870831
Event info last updated: 2026.06.20-10:30:02 UTC
Event first association/location: 2026.06.20-09:34:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA