Early-est:     Off Coast of Central America    2026.03.30-05:15:38.86    q:C      mb:4.4*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1774847741768.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1774847741768.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1774847741768.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: 4.4* [9]    Mwp: 5.2X [2]    Mwpd: 6.1Xinv [1]
Region: Off Coast of Central America
Origin Time: 2026.03.30-05:15:38.86 UTC
Hypocenter: lat: 12.80°  lon: -88.64°  [+/-33km]    depth: 47km  [+/-68km]
Location Quality: qualityCode:  C     stdErr: 1.7s   assocPhases: 16   usedPhases: 6
minDist: 1.8°   maxDist: 143.3°   AzGap: 193°   2ndAzGap: 221°   atten: -1.28 [+/-0.06]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 12km   maxHorUnc: 33km   azMaxHorUnc: 67°
68%ConfEllipsoid:   semiMajorAxisLength: 76km   majorAxisAzimuth: 71°   majorAxisPlunge: 63°   semiIntermediateAxisLength: 23km   intermediateAxisAzimuth: 228°   intermediateAxisPlunge: 26°   semiMinorAxisLength: 13km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.4 [5]    Td: 7.3Xs [1]    Td*T50Ex: - [0]    To: 16.0Xs [3]
Closest plate boundaries:
   Caribbean / Cocos [subduction zone]: distance: ~90km
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 (90km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       47km
       47km
       47km
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.1774847741768.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 36°   dip: 34°   rake: -31°
Nodal Plane 2: strike: 152°   dip: 73°   rake: -120°
Quality: azimuthalGap: -1°   stationPolarityCount: 12   misfitWeightCount: 3.5   misfit: 0.03   stationDistributionRatio: 0.50   meanDistP: 51.0   meanDistT: 52.5   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1774847741768.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.1774847741768.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):
Nodal Plane 1: strike: 311°   dip: 68°   rake: -154°
Nodal Plane 2: strike: 211°   dip: 66°   rake: -24°
Quality: azimuthalGap: 120°   stationPolarityCount: 12   misfit: 0.29   stationDistributionRatio: 0.75   rmsAngDiffAccPref: 15.16   fracAcc30degPref: 1.00   qualityCode: B
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1774847741768.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1774847741768
Event info last updated: 2026.03.30-06:14:01 UTC
Event first association/location: 2026.03.30-05:22:02 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA