Early-est:     Afghanistan - Tajikistan Bord Reg.    2026.04.03-10:26:46.64    q:A      mb:5.3*    Mwp:5.4    Mwpd:-    Td*T50Ex:0.6     fmamp_polarity:./hypo.1775212006699.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1775212006699.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1775212006699.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: 5.3* [78]    Mwp: 5.4 [9]    Mwpd: 5.5Xinv [8]
Region: Afghanistan - Tajikistan Bord Reg.
Origin Time: 2026.04.03-10:26:46.64 UTC
Hypocenter: lat: 38.78°  lon: 71.12°  [+/-16km]    depth: 15km  [+/-14km]
Location Quality: qualityCode:  A     stdErr: 1.4s   assocPhases: 122   usedPhases: 94
minDist: 2.9°   maxDist: 151.2°   AzGap: 39°   2ndAzGap: 51°   atten: -1.19 [+/-0.28]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 14km   maxHorUnc: 16km   azMaxHorUnc: 105°
68%ConfEllipsoid:   semiMajorAxisLength: 19km   majorAxisAzimuth: 105°   majorAxisPlunge: 1°   semiIntermediateAxisLength: 17km   intermediateAxisAzimuth: 195°   intermediateAxisPlunge: 2°   semiMinorAxisLength: 13km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 0.4 [66]    Td: 1.3s [10]    Td*T50Ex: 0.6 [10]    To: 3.8s [61]
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:
   0.6
   0.6
   0.6
Td*To:
     4.9
     4.9
     4.9
Mwp magnitude:
       5.4
       5.4
       5.4
Hypocenter depth:
       15km
       15km
       15km
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.1775212006699.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):
Nodal Plane 1: strike: 92°   dip: 14°   rake: -156°
Nodal Plane 2: strike: 339°   dip: 84°   rake: -77°
Quality: azimuthalGap: -1°   stationPolarityCount: 78   misfitWeightCount: 10.8   misfit: 0.10   stationDistributionRatio: 0.68   meanDistP: 31.1   meanDistT: 29.7   qualityCode: B
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1775212006699.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.1775212006699.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 342°   dip: 87°   rake: -85°
Nodal Plane 2: strike: 107°   dip: 6°   rake: -145°
Quality: azimuthalGap: 49°   stationPolarityCount: 78   misfit: 0.35   stationDistributionRatio: 0.60   rmsAngDiffAccPref: 31.11   fracAcc30degPref: 0.64   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1775212006699.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1775212006699
Event info last updated: 2026.04.03-11:25:00 UTC
Event first association/location: 2026.04.03-10:33:02 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA