Early-est:     Off Coast of Central America    2025.12.11-17:18:38.44    q:B      mb:4.8    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: 4.8 [16]    Mwp: 5.0X [1]    Mwpd: - [0] Region: Off Coast of Central America Origin Time: 2025.12.11-17:18:38.44 UTC Hypocenter: lat: 12.93°  lon: -89.76°  [+/-19km]    depth: 68km  [+/-14km] Location Quality: qualityCode:  B     stdErr: 0.9s   assocPhases: 56   usedPhases: 24 minDist: 2.7°   maxDist: 147.1°   AzGap: 63°   2ndAzGap: 110°   atten: -1.07 [+/-0.19] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 12km   maxHorUnc: 19km   azMaxHorUnc: 15° 68%ConfEllipsoid:   semiMajorAxisLength: 24km   majorAxisAzimuth: 16°   majorAxisPlunge: 1°   semiIntermediateAxisLength: 16km   intermediateAxisAzimuth: 107°   intermediateAxisPlunge: 45°   semiMinorAxisLength: 13km Tsunamigeneic Assesment: Discriminants: Prob Underwater: >99% T50Ex: 0.5 [10]    Td: 1.1Xs [1]    Td*T50Ex: - [0]    To: 1.8s [5] Closest plate boundaries:    Caribbean / Cocos [subduction zone]: distance: ~70km    Caribbean - North America [continental rift boundary]: distance: ~120km    Cocos \ North America [subduction zone]: distance: ~130km Subduction geometry:    Zone: Central America    Slab depth at epicenter: 24km Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (70km)  no  no Prob underwater:  >99%  >99%  >99% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        68km        68km        68km Slab depth at epicenter:        24km        -        -

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C) Nodal Plane 1: strike: 265°   dip: 72°   rake: -178° Nodal Plane 2: strike: 174°   dip: 88°   rake: -18° Quality: azimuthalGap: -1°   stationPolarityCount: 23   misfitWeightCount: 9.0   misfit: 0.09   stationDistributionRatio: 0.56   meanDistP: 35.9   meanDistT: 31.2   qualityCode: C Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
First-motion Focal Mechanism (HASH): Nodal Plane 1: strike: 259°   dip: 69°   rake: 168° Nodal Plane 2: strike: 354°   dip: 79°   rake: 21° Quality: azimuthalGap: 86°   stationPolarityCount: 23   misfit: 0.25   stationDistributionRatio: 0.62   rmsAngDiffAccPref: 18.96   fracAcc30degPref: 0.92   qualityCode: B 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: 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/_amp_aref
First-motion Focal Mechanism (FMAMP_AMP_MWP):    (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/_amp_mwp

Event ID: smi:KOERI/ee/event/1765473518283
Event info last updated: 2025.12.11-18:18:45 UTC
Event first association/location: 2025.12.11-17:24:47 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI