Early-est:     Turkey    2025.12.16-13:11:01.76    q:A      mb:-    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1765890663239.mech.fmamp_polarity.thumb.jpg     hash:./hypo.1765890663239.mech.hash.thumb.jpg     fmamp_amp_aref:./hypo.1765890663239.mech.fmamp_amp_aref.thumb.jpg     fmamp_amp_mwp:./hypo.1765890663239.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: 4.8X [3]    Mwp: 3.9X [1]    Mwpd: - [0]
Region: Turkey
Origin Time: 2025.12.16-13:11:01.76 UTC
Hypocenter: lat: 36.99°  lon: 30.80°  [+/-2km]    depth: 20km  [+/-4km]
Location Quality: qualityCode:  A     stdErr: 0.9s   assocPhases: 27   usedPhases: 22
minDist: 1.2°   maxDist: 88.6°   AzGap: 87°   2ndAzGap: 100°   atten: -1.09 [+/-0.30]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 1km   maxHorUnc: 2km   azMaxHorUnc: 144°
68%ConfEllipsoid:   semiMajorAxisLength: 4km   majorAxisAzimuth: 325°   majorAxisPlunge: 73°   semiIntermediateAxisLength: 2km   intermediateAxisAzimuth: 144°   intermediateAxisPlunge: 17°   semiMinorAxisLength: 2km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: 1%
T50Ex: 0.6X [2]    Td: -s [0]    Td*T50Ex: - [0]    To: -s [0]
Closest plate boundaries:
   Aegean Sea - Anatolia [oceanic spreading ridge]: distance: ~190km
   Aegean Sea / Africa [subduction zone]: distance: ~200km
   Anatolia / Africa [subduction zone]: distance: ~200km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 YES (200km)
 no
 no
Prob underwater:
 1%
 1%
 1%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       20km
       20km
       20km
Slab depth at epicenter:
       n/a
       -
       -
./hypo.1765890663239.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 158°   dip: 55°   rake: 165°
Nodal Plane 2: strike: 256°   dip: 77°   rake: 36°
Quality: azimuthalGap: -1°   stationPolarityCount: 19   misfitWeightCount: 8.3   misfit: 0.14   stationDistributionRatio: 0.52   meanDistP: 50.1   meanDistT: 31.1   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1765890663239.mech.fmamp_polarity.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 164°   dip: 56°   rake: 142°
Nodal Plane 2: strike: 277°   dip: 60°   rake: 40°
Quality: azimuthalGap: 96°   stationPolarityCount: 19   misfit: 0.31   stationDistributionRatio: 0.74   rmsAngDiffAccPref: 34.17   fracAcc30degPref: 0.67   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1765890663239.mech.hash.mechanism.jpg
First-motion Focal Mechanism (FMAMP_AMP_AREF):    (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/_amp_aref
./hypo.1765890663239.mech.fmamp_amp_aref.mechanism.jpg
First-motion Focal Mechanism (FMAMP_AMP_MWP):    (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/_amp_mwp
./hypo.1765890663239.mech.fmamp_amp_mwp.mechanism.jpg

Event ID: smi:KOERI/ee/event/1765890663239
Event info last updated: 2025.12.16-14:11:40 UTC
Event first association/location: 2025.12.16-13:11:50 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI