Early-est:     Nicaragua    2026.10.09-12:33:46.39    q:B      mb:4.4    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:     hash:     fmamp_amp_aref:     fmamp_amp_mwp:

Automatic solution - this event has not been reviewed by a seismologist
Automatically determined event information may be incorrect!

Earthquake Details: Magnitude: mb: 4.4 [13]    Mwp: - [0]    Mwpd: - [0] Region: Nicaragua Origin Time: 2026.10.09-12:33:46.39 UTC Hypocenter: lat: 11.76°  lon: -85.86°  [+/-14km]    depth: 171km  [+/-14km] Location Quality: qualityCode:  B     stdErr: 0.7s   assocPhases: 21   usedPhases: 18 minDist: 0.7°   maxDist: 149.0°   AzGap: 117°   2ndAzGap: 130°   atten: -1.41 [+/-0.45] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 13km   maxHorUnc: 14km   azMaxHorUnc: 165° 68%ConfEllipsoid:   semiMajorAxisLength: 17km   majorAxisAzimuth: 164°   majorAxisPlunge: 15°   semiIntermediateAxisLength: 16km   intermediateAxisAzimuth: 73°   intermediateAxisPlunge: 1°   semiMinorAxisLength: 13km Tsunamigeneic Assesment: Discriminants: Prob Underwater: <1% T50Ex: 0.3X [3]    Td: -s [0]    Td*T50Ex: - [0]    To: 1.1Xs [2] Closest plate boundaries:    Panama - Caribbean [continental convergent boundary]: distance: ~130km    Caribbean / Cocos [subduction zone]: distance: ~180km    Cocos \ Panama [subduction zone]: distance: ~190km Subduction geometry:    Zone: Central America    Slab depth at epicenter: 138km Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (180km)  no  no Prob underwater:  <1%  <1%  <1% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        171km        171km        171km Slab depth at epicenter:        138km        -        -

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 95°   dip: 71°   rake: -17° Nodal Plane 2: strike: 191°   dip: 74°   rake: -160° Quality: azimuthalGap: -1°   stationPolarityCount: 16   misfitWeightCount: 5.8   misfit: 0.10   stationDistributionRatio: 0.47   meanDistP: 35.8   meanDistT: 36.1   qualityCode: D Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 194°   dip: 73°   rake: -140° Nodal Plane 2: strike: 90°   dip: 52°   rake: -22° Quality: azimuthalGap: 130°   stationPolarityCount: 16   misfit: 0.30   stationDistributionRatio: 0.79   rmsAngDiffAccPref: 42.88   fracAcc30degPref: 0.39   qualityCode: D Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
First-motion Focal Mechanism (FMAMP_AMP_AREF):    (No solution available) Nodal Plane 1: strike: 0°   dip: 0°   rake: nan° Nodal Plane 2: strike: nan°   dip: nan°   rake: nan° 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/_amp_aref
First-motion Focal Mechanism (FMAMP_AMP_MWP):    (No solution available) Nodal Plane 1: strike: 0°   dip: 0°   rake: nan° Nodal Plane 2: strike: nan°   dip: nan°   rake: nan° 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/_amp_mwp

Event ID: smi:KOERI/ee/event/1791549226513
Event info last updated: 2026.10.09-13:34:02 UTC
Event first association/location: 2026.10.09-12:40:04 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI