Early-est:     Northwestern Balkan Region    2025.12.15-16:22:57.92    q:A      mb:-    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1765815777892.mech.fmamp_polarity.thumb.jpg     hash:./hypo.1765815777892.mech.hash.thumb.jpg     fmamp_amp_aref:./hypo.1765815777892.mech.fmamp_amp_aref.thumb.jpg     fmamp_amp_mwp:./hypo.1765815777892.mech.fmamp_amp_mwp.thumb.jpg

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

Earthquake Details:
Magnitude: mb: 4.2X [2]    Mwp: - [0]    Mwpd: - [0]
Region: Northwestern Balkan Region
Origin Time: 2025.12.15-16:22:57.92 UTC
Hypocenter: lat: 41.00°  lon: 22.11°  [+/-2km]    depth: 10km  [+/-1km]
Location Quality: qualityCode:  A     stdErr: 1.4s   assocPhases: 22   usedPhases: 16
minDist: 0.9°   maxDist: 76.5°   AzGap: 60°   2ndAzGap: 75°   atten: -1.88 [+/-0.23]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 2km   maxHorUnc: 2km   azMaxHorUnc: 151°
68%ConfEllipsoid:   semiMajorAxisLength: 3km   majorAxisAzimuth: 329°   majorAxisPlunge: 9°   semiIntermediateAxisLength: 2km   intermediateAxisAzimuth: 239°   intermediateAxisPlunge: 3°   semiMinorAxisLength: 1km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 0.4X [1]    Td: -s [0]    Td*T50Ex: - [0]    To: -s [0]
Closest plate boundaries:
   Aegean Sea - Eurasia [continental transform fault]: distance: ~200km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 no
 no
 no
Prob underwater:
 <1%
 <1%
 <1%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       10km
       10km
       10km
Slab depth at epicenter:
       n/a
       -
       -
./hypo.1765815777892.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 117°   dip: 15°   rake: 36°
Nodal Plane 2: strike: 352°   dip: 81°   rake: 102°
Quality: azimuthalGap: -1°   stationPolarityCount: 14   misfitWeightCount: 9.0   misfit: 0.13   stationDistributionRatio: 0.44   meanDistP: 30.6   meanDistT: 33.5   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1765815777892.mech.fmamp_polarity.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 108°   dip: 8°   rake: 25°
Nodal Plane 2: strike: 353°   dip: 87°   rake: 97°
Quality: azimuthalGap: 59°   stationPolarityCount: 14   misfit: 0.18   stationDistributionRatio: 0.71   rmsAngDiffAccPref: 44.36   fracAcc30degPref: 0.38   qualityCode: D
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1765815777892.mech.hash.mechanism.jpg
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
./hypo.1765815777892.mech.fmamp_amp_aref.mechanism.jpg
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
./hypo.1765815777892.mech.fmamp_amp_mwp.mechanism.jpg

Event ID: smi:KOERI/ee/event/1765815777892
Event info last updated: 2025.12.15-17:23:02 UTC
Event first association/location: 2025.12.15-16:25:02 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI