Early-est:     Turkey    2026.04.04-05:52:45.50    q:B      mb:5.1*    Mwp:5.4    Mwpd:-    Td*T50Ex:0.8     fmamp_polarity:./hypo.1775281967647.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1775281967647.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1775281967647.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: 5.1* [70]    Mwp: 5.4 [5]    Mwpd: 5.5Xinv [6]
Region: Turkey
Origin Time: 2026.04.04-05:52:45.50 UTC
Hypocenter: lat: 38.81°  lon: 43.65°  [+/-21km]    depth: 9km  [+/-38km]
Location Quality: qualityCode:  B     stdErr: 1.5s   assocPhases: 108   usedPhases: 77
minDist: 1.6°   maxDist: 95.2°   AzGap: 37°   2ndAzGap: 63°   atten: -1.15 [+/-0.22]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 17km   maxHorUnc: 21km   azMaxHorUnc: 4°
68%ConfEllipsoid:   semiMajorAxisLength: 38km   majorAxisAzimuth: 191°   majorAxisPlunge: 81°   semiIntermediateAxisLength: 26km   intermediateAxisAzimuth: 3°   intermediateAxisPlunge: 8°   semiMinorAxisLength: 21km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 0.4 [52]    Td: 2.0s [20]    Td*T50Ex: 0.8 [20]    To: 2.5s [52]
Closest plate boundaries:
   Eurasia - Arabia [continental convergent boundary]: distance: ~120km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 no
 YES (120km)
 no
Prob underwater:
 <1%
 <1%
 <1%
Td*T50Ex:
   0.8
   0.8
   0.8
Td*To:
     5.0
     5.0
     5.0
Mwp magnitude:
       5.4
       5.4
       5.4
Hypocenter depth:
       9km
       9km
       9km
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.1775281967647.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 258°   dip: 58°   rake: 10°
Nodal Plane 2: strike: 163°   dip: 82°   rake: 148°
Quality: azimuthalGap: -1°   stationPolarityCount: 78   misfitWeightCount: 15.8   misfit: 0.23   stationDistributionRatio: 0.48   meanDistP: 49.9   meanDistT: 47.0   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1775281967647.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.1775281967647.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 247°   dip: 23°   rake: -7°
Nodal Plane 2: strike: 343°   dip: 87°   rake: -113°
Quality: azimuthalGap: 37°   stationPolarityCount: 75   misfit: 0.34   stationDistributionRatio: 0.63   rmsAngDiffAccPref: 24.07   fracAcc30degPref: 0.76   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1775281967647.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1775281967647
Event info last updated: 2026.04.04-06:51:01 UTC
Event first association/location: 2026.04.04-05:57:00 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA