Early-est:     Southwestern Siberia, Russia    2024.12.20-19:57:53.78    q:B      mb:4.5*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1734724676502.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1734724676502.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1734724676502.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* [8]    Mwp: - [0]    Mwpd: - [0]
Region: Southwestern Siberia, Russia
Origin Time: 2024.12.20-19:57:53.78 UTC
Hypocenter: lat: 50.62°  lon: 88.42°  [+/-15km]    depth: 9km  [+/-15km]
Location Quality: qualityCode:  B     stdErr: 1.0s   assocPhases: 13   usedPhases: 7
minDist: 5.7°   maxDist: 90.1°   AzGap: 153°   2ndAzGap: 173°   atten: -1.69 [+/-0.50]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 12km   maxHorUnc: 15km   azMaxHorUnc: 7°
68%ConfEllipsoid:   semiMajorAxisLength: 19km   majorAxisAzimuth: 188°   majorAxisPlunge: 13°   semiIntermediateAxisLength: 15km   intermediateAxisAzimuth: 290°   intermediateAxisPlunge: 40°   semiMinorAxisLength: 14km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 0.9 [7]    Td: 0.7Xs [1]    Td*T50Ex: - [0]    To: 178.8s [7]
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:
       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.1734724676502.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 57°   dip: 14°   rake: 162°
Nodal Plane 2: strike: 165°   dip: 86°   rake: 77°
Quality: azimuthalGap: -1°   stationPolarityCount: 10   misfitWeightCount: 3.8   misfit: 0.05   stationDistributionRatio: 0.42   meanDistP: 45.0   meanDistT: 41.2   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1734724676502.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.1734724676502.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (No solution available)
Nodal Plane 1: strike: 999°   dip: 99°   rake: 999°
Nodal Plane 2: strike: 324°   dip: 13°   rake: 135°
Quality: azimuthalGap: 152°   stationPolarityCount: 9   misfit: 0.99   stationDistributionRatio: 0.00   rmsAngDiffAccPref: 0.00   fracAcc30degPref: 0.00   qualityCode: E
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1734724676502.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1734724676502
Event info last updated: 2024.12.20-20:56:01 UTC
Event first association/location: 2024.12.20-20:26:03 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA