Early-est:     Romania    2026.08.11-17:21:16.06    q:A      mb:4.5*    Mwp:-    Mwpd:-    Td*T50Ex:0.0     fmamp_polarity:./hypo.1786468875623.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1786468875623.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1786468875623.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: 4.5* [25]    Mwp: - [0]    Mwpd: - [0]
Region: Romania
Origin Time: 2026.08.11-17:21:16.06 UTC
Hypocenter: lat: 45.62°  lon: 26.41°  [+/-10km]    depth: 144km  [+/-6km]
Location Quality: qualityCode:  A     stdErr: 1.2s   assocPhases: 53   usedPhases: 25
minDist: 1.8°   maxDist: 124.9°   AzGap: 48°   2ndAzGap: 77°   atten: -1.17 [+/-0.29]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 7km   maxHorUnc: 10km   azMaxHorUnc: 13°
68%ConfEllipsoid:   semiMajorAxisLength: 12km   majorAxisAzimuth: 191°   majorAxisPlunge: 11°   semiIntermediateAxisLength: 9km   intermediateAxisAzimuth: 99°   intermediateAxisPlunge: 11°   semiMinorAxisLength: 6km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 0.0 [15]    Td: 1.1s [4]    Td*T50Ex: 0.0 [4]    To: 2.7s [14]
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:
   0.0
   0.0
   0.0
Td*To:
     3.0
     3.0
     3.0
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       144km
       144km
       144km
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.1786468875623.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 251°   dip: 23°   rake: 48°
Nodal Plane 2: strike: 115°   dip: 73°   rake: 106°
Quality: azimuthalGap: -1°   stationPolarityCount: 30   misfitWeightCount: 17.8   misfit: 0.26   stationDistributionRatio: 0.62   meanDistP: 51.1   meanDistT: 42.7   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1786468875623.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.1786468875623.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 102°   dip: 53°   rake: -169°
Nodal Plane 2: strike: 5°   dip: 81°   rake: -38°
Quality: azimuthalGap: 58°   stationPolarityCount: 30   misfit: 0.29   stationDistributionRatio: 0.49   rmsAngDiffAccPref: 30.81   fracAcc30degPref: 0.75   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1786468875623.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1786468875623
Event info last updated: 2026.08.11-18:20:00 UTC
Event first association/location: 2026.08.11-17:23:00 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA