Early-est:     Southern Argentina    2025.11.10-09:10:20.81    q:A      mb:4.7    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1762765819926.mech.fmamp_polarity.thumb.jpg     hash:./hypo.1762765819926.mech.hash.thumb.jpg     fmamp_amp_aref:./hypo.1762765819926.mech.fmamp_amp_aref.thumb.jpg     fmamp_amp_mwp:./hypo.1762765819926.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: 4.7 [24]    Mwp: - [0]    Mwpd: - [0]
Region: Southern Argentina
Origin Time: 2025.11.10-09:10:20.81 UTC
Hypocenter: lat: -37.58°  lon: -69.66°  [+/-4km]    depth: 201km  [+/-5km]
Location Quality: qualityCode:  A     stdErr: 1.1s   assocPhases: 66   usedPhases: 34
minDist: 2.4°   maxDist: 118.4°   AzGap: 69°   2ndAzGap: 79°   atten: -1.46 [+/-0.24]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 3km   maxHorUnc: 4km   azMaxHorUnc: 72°
68%ConfEllipsoid:   semiMajorAxisLength: 6km   majorAxisAzimuth: 259°   majorAxisPlunge: 39°   semiIntermediateAxisLength: 4km   intermediateAxisAzimuth: 23°   intermediateAxisPlunge: 34°   semiMinorAxisLength: 4km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 0.1 [17]    Td: 0.3Xs [2]    Td*T50Ex: - [0]    To: 1.1s [7]
Closest plate boundaries:
   Nazca \ South America [subduction zone]: distance: ~430km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 YES (430km)
 no
 no
Prob underwater:
 <1%
 <1%
 <1%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       201km
       201km
       201km
Slab depth at epicenter:
       n/a
       -
       -
./hypo.1762765819926.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 172°   dip: 31°   rake: 110°
Nodal Plane 2: strike: 329°   dip: 61°   rake: 78°
Quality: azimuthalGap: -1°   stationPolarityCount: 28   misfitWeightCount: 16.1   misfit: 0.19   stationDistributionRatio: 0.52   meanDistP: 24.2   meanDistT: 27.0   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1762765819926.mech.fmamp_polarity.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 158°   dip: 26°   rake: 95°
Nodal Plane 2: strike: 332°   dip: 64°   rake: 87°
Quality: azimuthalGap: 81°   stationPolarityCount: 28   misfit: 0.28   stationDistributionRatio: 0.66   rmsAngDiffAccPref: 29.26   fracAcc30degPref: 0.77   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1762765819926.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.1762765819926.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.1762765819926.mech.fmamp_amp_mwp.mechanism.jpg

Event ID: smi:KOERI/ee/event/1762765819926
Event info last updated: 2025.11.10-10:11:00 UTC
Event first association/location: 2025.11.10-09:14:07 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI