Early-est:     Chiapas, Mexico    2025.04.11-14:19:16.91    q:C      mb:4.1*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1744381157011.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1744381157011.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1744381157011.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: 4.1* [12]    Mwp: - [0]    Mwpd: - [0]
Region: Chiapas, Mexico
Origin Time: 2025.04.11-14:19:16.91 UTC
Hypocenter: lat: 16.70°  lon: -92.66°  [+/-39km]    depth: 243km  [+/-42km]
Location Quality: qualityCode:  C     stdErr: 1.4s   assocPhases: 40   usedPhases: 15
minDist: 17.9°   maxDist: 61.0°   AzGap: 156°   2ndAzGap: 163°   atten: -0.86 [+/-0.94]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 26km   maxHorUnc: 39km   azMaxHorUnc: 35°
68%ConfEllipsoid:   semiMajorAxisLength: 50km   majorAxisAzimuth: 205°   majorAxisPlunge: 30°   semiIntermediateAxisLength: 42km   intermediateAxisAzimuth: 75°   intermediateAxisPlunge: 48°   semiMinorAxisLength: 28km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 0.4 [4]    Td: -s [0]    Td*T50Ex: - [0]    To: 1.0s [4]
Closest plate boundaries:
   Cocos \ North America [subduction zone]: distance: ~310km
Subduction geometry:    Zone: Central 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 (310km)
 no
 no
Prob underwater:
 <1%
 <1%
 <1%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       243km
       243km
       243km
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.1744381157011.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 52°   dip: 10°   rake: -49°
Nodal Plane 2: strike: 191°   dip: 83°   rake: -96°
Quality: azimuthalGap: -1°   stationPolarityCount: 13   misfitWeightCount: 4.2   misfit: 0.02   stationDistributionRatio: 0.67   meanDistP: 47.6   meanDistT: 47.8   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1744381157011.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.1744381157011.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: 155°   stationPolarityCount: 13   misfit: 0.99   stationDistributionRatio: 0.00   rmsAngDiffAccPref: 0.00   fracAcc30degPref: 0.00   qualityCode: E
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1744381157011.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1744381157011
Event info last updated: 2025.04.11-15:18:04 UTC
Event first association/location: 2025.04.11-14:28:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA