Early-est:     Northern Chile    2024.12.18-04:09:14.44    q:B      mb:5.2*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1734494949578.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1734494949578.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1734494949578.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: 5.2* [53]    Mwp: 5.1X [1]    Mwpd: - [0]
Region: Northern Chile
Origin Time: 2024.12.18-04:09:14.44 UTC
Hypocenter: lat: -20.09°  lon: -70.00°  [+/-32km]    depth: 68km  [+/-43km]
Location Quality: qualityCode:  B     stdErr: 1.6s   assocPhases: 101   usedPhases: 73
minDist: 4.2°   maxDist: 152.1°   AzGap: 84°   2ndAzGap: 94°   atten: -1.09 [+/-0.20]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 18km   maxHorUnc: 32km   azMaxHorUnc: 88°
68%ConfEllipsoid:   semiMajorAxisLength: 46km   majorAxisAzimuth: 86°   majorAxisPlunge: 55°   semiIntermediateAxisLength: 37km   intermediateAxisAzimuth: 271°   intermediateAxisPlunge: 35°   semiMinorAxisLength: 22km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 0.6 [55]    Td: 0.9Xs [3]    Td*T50Ex: - [0]    To: 33.4s [51]
Closest plate boundaries:
   Nazca \ Altiplano [subduction zone]: distance: ~140km
   Altiplano - South America [continental transform fault]: distance: ~160km
   Nazca \ South America [subduction zone]: distance: ~250km
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?:
 YES (140km)
 no
 no
Prob underwater:
 <1%
 <1%
 <1%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       68km
       68km
       68km
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.1734494949578.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 329°   dip: 78°   rake: -9°
Nodal Plane 2: strike: 61°   dip: 82°   rake: -168°
Quality: azimuthalGap: -1°   stationPolarityCount: 54   misfitWeightCount: 13.9   misfit: 0.11   stationDistributionRatio: 0.50   meanDistP: 49.0   meanDistT: 39.8   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1734494949578.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.1734494949578.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 230°   dip: 79°   rake: -158°
Nodal Plane 2: strike: 136°   dip: 69°   rake: -12°
Quality: azimuthalGap: 111°   stationPolarityCount: 54   misfit: 0.29   stationDistributionRatio: 0.73   rmsAngDiffAccPref: 27.09   fracAcc30degPref: 0.79   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1734494949578.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1734494949578
Event info last updated: 2024.12.18-05:08:00 UTC
Event first association/location: 2024.12.18-04:14:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA