Early-est:     Romania    2025.12.12-01:54:25.72    q:A      mb:3.8    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1765504460639.mech.fmamp_polarity.thumb.jpg     hash:./hypo.1765504460639.mech.hash.thumb.jpg     fmamp_amp_aref:./hypo.1765504460639.mech.fmamp_amp_aref.thumb.jpg     fmamp_amp_mwp:./hypo.1765504460639.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: 3.8 [4]    Mwp: - [0]    Mwpd: - [0]
Region: Romania
Origin Time: 2025.12.12-01:54:25.72 UTC
Hypocenter: lat: 45.71°  lon: 26.61°  [+/-3km]    depth: 90km  [+/-4km]
Location Quality: qualityCode:  A     stdErr: 0.6s   assocPhases: 25   usedPhases: 21
minDist: 0.2°   maxDist: 151.7°   AzGap: 94°   2ndAzGap: 104°   atten: -1.65 [+/-0.51]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 3km   maxHorUnc: 3km   azMaxHorUnc: 85°
68%ConfEllipsoid:   semiMajorAxisLength: 4km   majorAxisAzimuth: 260°   majorAxisPlunge: 66°   semiIntermediateAxisLength: 4km   intermediateAxisAzimuth: 87°   intermediateAxisPlunge: 23°   semiMinorAxisLength: 3km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 2.0X [1]    Td: -s [0]    Td*T50Ex: - [0]    To: -s [0]
Closest plate boundaries:
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:
       90km
       90km
       90km
Slab depth at epicenter:
       n/a
       -
       -
./hypo.1765504460639.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 354°   dip: 39°   rake: 130°
Nodal Plane 2: strike: 127°   dip: 61°   rake: 63°
Quality: azimuthalGap: -1°   stationPolarityCount: 17   misfitWeightCount: 8.8   misfit: 0.07   stationDistributionRatio: 0.50   meanDistP: 32.9   meanDistT: 36.8   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1765504460639.mech.fmamp_polarity.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 179°   dip: 61°   rake: 112°
Nodal Plane 2: strike: 320°   dip: 36°   rake: 56°
Quality: azimuthalGap: 94°   stationPolarityCount: 17   misfit: 0.08   stationDistributionRatio: 0.33   rmsAngDiffAccPref: 26.30   fracAcc30degPref: 0.66   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1765504460639.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.1765504460639.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.1765504460639.mech.fmamp_amp_mwp.mechanism.jpg

Event ID: smi:KOERI/ee/event/1765504460639
Event info last updated: 2025.12.12-02:54:34 UTC
Event first association/location: 2025.12.12-01:55:22 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI