Early-est:     Nicaragua    2026.03.26-17:15:45.15    q:A      mb:5.1    Mwp:5.6*    Mwpd:-    Td*T50Ex:0.9     fmamp_polarity:./hypo.1774545358234.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1774545358234.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1774545358234.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: 5.1 [60]    Mwp: 5.6* [9]    Mwpd: 5.8Xinv [5]
Region: Nicaragua
Origin Time: 2026.03.26-17:15:45.15 UTC
Hypocenter: lat: 12.16°  lon: -86.46°  [+/-22km]    depth: 156km  [+/-16km]
Location Quality: qualityCode:  A     stdErr: 1.2s   assocPhases: 139   usedPhases: 98
minDist: 0.8°   maxDist: 153.4°   AzGap: 52°   2ndAzGap: 62°   atten: -1.51 [+/-0.33]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 12km   maxHorUnc: 22km   azMaxHorUnc: 43°
68%ConfEllipsoid:   semiMajorAxisLength: 27km   majorAxisAzimuth: 43°   majorAxisPlunge: 2°   semiIntermediateAxisLength: 17km   intermediateAxisAzimuth: 136°   intermediateAxisPlunge: 49°   semiMinorAxisLength: 14km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 0.4 [45]    Td: 2.3s [12]    Td*T50Ex: 0.9 [12]    To: 1.9s [45]
Closest plate boundaries:
   Caribbean / Cocos [subduction zone]: distance: ~160km
   Panama - Caribbean [continental convergent boundary]: distance: ~190km
   Cocos \ Panama [subduction zone]: distance: ~210km
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 (160km)
 no
 no
Prob underwater:
 <1%
 <1%
 <1%
Td*T50Ex:
   0.9
   0.9
   0.9
Td*To:
     4.4
     4.4
     4.4
Mwp magnitude:
       5.6*
       5.6*
       5.6*
Hypocenter depth:
       156km
       156km
       156km
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.1774545358234.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):
Nodal Plane 1: strike: 66°   dip: 37°   rake: -175°
Nodal Plane 2: strike: 332°   dip: 87°   rake: -54°
Quality: azimuthalGap: -1°   stationPolarityCount: 67   misfitWeightCount: 19.4   misfit: 0.08   stationDistributionRatio: 0.61   meanDistP: 19.6   meanDistT: 26.5   qualityCode: B
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1774545358234.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.1774545358234.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 51°   dip: 33°   rake: 175°
Nodal Plane 2: strike: 145°   dip: 87°   rake: 57°
Quality: azimuthalGap: 79°   stationPolarityCount: 67   misfit: 0.22   stationDistributionRatio: 0.76   rmsAngDiffAccPref: 26.33   fracAcc30degPref: 0.83   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1774545358234.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1774545358234
Event info last updated: 2026.03.26-18:14:01 UTC
Event first association/location: 2026.03.26-17:18:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA