Early-est:     Northern Colombia    2026.10.13-21:24:21.76    q:B      mb:4.9    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1791926661084.mech.fmamp_polarity.thumb.jpg     hash:./hypo.1791926661084.mech.hash.thumb.jpg     fmamp_amp_aref:./hypo.1791926661084.mech.fmamp_amp_aref.thumb.jpg     fmamp_amp_mwp:./hypo.1791926661084.mech.fmamp_amp_mwp.thumb.jpg

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

Earthquake Details:
Magnitude: mb: 4.9 [18]    Mwp: - [0]    Mwpd: - [0]
Region: Northern Colombia
Origin Time: 2026.10.13-21:24:21.76 UTC
Hypocenter: lat: 6.80°  lon: -72.99°  [+/-13km]    depth: 157km  [+/-17km]
Location Quality: qualityCode:  B     stdErr: 1.0s   assocPhases: 41   usedPhases: 22
minDist: 12.3°   maxDist: 150.4°   AzGap: 83°   2ndAzGap: 143°   atten: -1.60 [+/-0.29]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 12km   maxHorUnc: 13km   azMaxHorUnc: 159°
68%ConfEllipsoid:   semiMajorAxisLength: 17km   majorAxisAzimuth: 338°   majorAxisPlunge: 53°   semiIntermediateAxisLength: 15km   intermediateAxisAzimuth: 241°   intermediateAxisPlunge: 5°   semiMinorAxisLength: 15km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 0.0 [10]    Td: -s [0]    Td*T50Ex: - [0]    To: 1.2s [4]
Closest plate boundaries:
   North Andes - South America [continental convergent boundary]: distance: ~110km
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 no
 YES (110km)
 no
Prob underwater:
 <1%
 <1%
 <1%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       157km
       157km
       157km
Slab depth at epicenter:
       n/a
       -
       -
./hypo.1791926661084.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 107°   dip: 38°   rake: -92°
Nodal Plane 2: strike: 289°   dip: 52°   rake: -89°
Quality: azimuthalGap: -1°   stationPolarityCount: 22   misfitWeightCount: 10.3   misfit: 0.09   stationDistributionRatio: 0.58   meanDistP: 25.9   meanDistT: 29.4   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1791926661084.mech.fmamp_polarity.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 109°   dip: 38°   rake: -94°
Nodal Plane 2: strike: 294°   dip: 52°   rake: -87°
Quality: azimuthalGap: 82°   stationPolarityCount: 22   misfit: 0.28   stationDistributionRatio: 0.67   rmsAngDiffAccPref: 25.97   fracAcc30degPref: 0.86   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1791926661084.mech.hash.mechanism.jpg
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
./hypo.1791926661084.mech.fmamp_amp_aref.mechanism.jpg
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
./hypo.1791926661084.mech.fmamp_amp_mwp.mechanism.jpg

Event ID: smi:KOERI/ee/event/1791926661084
Event info last updated: 2026.10.13-22:24:32 UTC
Event first association/location: 2026.10.13-21:31:02 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI