Early-est:     Ionian Sea    2025.12.16-11:56:35.14    q:C      mb:-    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:     hash:     fmamp_amp_aref:     fmamp_amp_mwp:

Automatic solution - this event has not been reviewed by a seismologist
Automatically determined event information may be incorrect!

Earthquake Details: Magnitude: mb: 5.1X [1]    Mwp: - [0]    Mwpd: - [0] Region: Ionian Sea Origin Time: 2025.12.16-11:56:35.14 UTC Hypocenter: lat: 37.16°  lon: 20.43°  [+/-14km]    depth: 273km  [+/-18km] Location Quality: qualityCode:  C     stdErr: 2.0s   assocPhases: 11   usedPhases: 10 minDist: 1.2°   maxDist: 46.7°   AzGap: 170°   2ndAzGap: 210°   atten: -9.90 [+/-0.00] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 10km   maxHorUnc: 14km   azMaxHorUnc: 3° 68%ConfEllipsoid:   semiMajorAxisLength: 19km   majorAxisAzimuth: 179°   majorAxisPlunge: 61°   semiIntermediateAxisLength: 16km   intermediateAxisAzimuth: 5°   intermediateAxisPlunge: 29°   semiMinorAxisLength: 13km Tsunamigeneic Assesment: Discriminants: Prob Underwater: >99% T50Ex: 0.4X [2]    Td: -s [0]    Td*T50Ex: - [0]    To: 3.8Xs [1] Closest plate boundaries:    Aegean Sea / Africa [subduction zone]: distance: ~30km    Aegean Sea - Eurasia [continental convergent boundary]: distance: ~70km    Eurasia / Africa [subduction zone]: distance: ~70km    Eurasia - Africa [oceanic convergent boundary]: distance: ~90km Subduction geometry: none or not available Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (30km)  YES (70km)  no Prob underwater:  >99%  >99%  >99% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        273km        273km        273km Slab depth at epicenter:        n/a        -        -

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 68°   dip: 54°   rake: 10° Nodal Plane 2: strike: 332°   dip: 82°   rake: 144° Quality: azimuthalGap: -1°   stationPolarityCount: 10   misfitWeightCount: 5.6   misfit: 0.06   stationDistributionRatio: 0.29   meanDistP: 39.3   meanDistT: 37.7   qualityCode: D Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C) Nodal Plane 1: strike: 314°   dip: 63°   rake: 156° Nodal Plane 2: strike: 55°   dip: 69°   rake: 29° Quality: azimuthalGap: 139°   stationPolarityCount: 10   misfit: 0.12   stationDistributionRatio: 0.72   rmsAngDiffAccPref: 36.23   fracAcc30degPref: 0.56   qualityCode: C Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
First-motion Focal Mechanism (FMAMP_AMP_AREF):    (No solution available) Nodal Plane 1: strike: 0°   dip: 0°   rake: nan° Nodal Plane 2: strike: nan°   dip: nan°   rake: nan° 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/_amp_aref
First-motion Focal Mechanism (FMAMP_AMP_MWP):    (No solution available) Nodal Plane 1: strike: 0°   dip: 0°   rake: nan° Nodal Plane 2: strike: nan°   dip: nan°   rake: nan° 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/_amp_mwp

Event ID: smi:KOERI/ee/event/1765886194749
Event info last updated: 2025.12.16-12:56:51 UTC
Event first association/location: 2025.12.16-12:00:03 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI