Early-est:     Santiago Del Estero Prov., Arg.    2026.06.24-08:57:01.16    q:B      mb:4.5*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1782291421831.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1782291421831.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1782291421831.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* [33]    Mwp: - [0]    Mwpd: - [0]
Region: Santiago Del Estero Prov., Arg.
Origin Time: 2026.06.24-08:57:01.16 UTC
Hypocenter: lat: -27.15°  lon: -63.29°  [+/-32km]    depth: 584km  [+/-46km]
Location Quality: qualityCode:  B     stdErr: 1.3s   assocPhases: 59   usedPhases: 39
minDist: 5.4°   maxDist: 148.3°   AzGap: 57°   2ndAzGap: 83°   atten: -1.10 [+/-0.22]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 21km   maxHorUnc: 32km   azMaxHorUnc: 114°
68%ConfEllipsoid:   semiMajorAxisLength: 49km   majorAxisAzimuth: 121°   majorAxisPlunge: 62°   semiIntermediateAxisLength: 36km   intermediateAxisAzimuth: 289°   intermediateAxisPlunge: 28°   semiMinorAxisLength: 25km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 0.0 [17]    Td: -s [0]    Td*T50Ex: - [0]    To: 1.3s [17]
Closest plate boundaries:
Subduction geometry:    Zone: South America: DEBUG: error: [Errno 2] No such file or directory: 'gmt'    Slab depth at epicenter: error: evaluating slab depth: -999.9
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:
       584km
       584km
       584km
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.1782291421831.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 69°   dip: 48°   rake: -115°
Nodal Plane 2: strike: 285°   dip: 48°   rake: -65°
Quality: azimuthalGap: -1°   stationPolarityCount: 34   misfitWeightCount: 10.4   misfit: 0.20   stationDistributionRatio: 0.50   meanDistP: 54.4   meanDistT: 51.2   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1782291421831.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.1782291421831.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 24°   dip: 32°   rake: 146°
Nodal Plane 2: strike: 144°   dip: 73°   rake: 63°
Quality: azimuthalGap: 60°   stationPolarityCount: 34   misfit: 0.34   stationDistributionRatio: 0.73   rmsAngDiffAccPref: 43.83   fracAcc30degPref: 0.38   qualityCode: D
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1782291421831.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1782291421831
Event info last updated: 2026.06.24-09:56:01 UTC
Event first association/location: 2026.06.24-09:01:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA