Early-est:     Northern Colombia    2026.02.11-05:59:39.02    q:B      mb:4.7*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1770789578834.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1770789578834.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1770789578834.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: 4.7* [24]    Mwp: - [0]    Mwpd: - [0]
Region: Northern Colombia
Origin Time: 2026.02.11-05:59:39.02 UTC
Hypocenter: lat: 6.71°  lon: -73.02°  [+/-14km]    depth: 130km  [+/-17km]
Location Quality: qualityCode:  B     stdErr: 0.8s   assocPhases: 69   usedPhases: 31
minDist: 7.2°   maxDist: 158.5°   AzGap: 138°   2ndAzGap: 206°   atten: -1.82 [+/-0.41]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 13km   maxHorUnc: 14km   azMaxHorUnc: 156°
68%ConfEllipsoid:   semiMajorAxisLength: 18km   majorAxisAzimuth: 152°   majorAxisPlunge: 34°   semiIntermediateAxisLength: 17km   intermediateAxisAzimuth: 25°   intermediateAxisPlunge: 42°   semiMinorAxisLength: 16km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 0.3 [24]    Td: -s [0]    Td*T50Ex: - [0]    To: 1.3s [23]
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:
       130km
       130km
       130km
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.1770789578834.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 318°   dip: 41°   rake: -110°
Nodal Plane 2: strike: 164°   dip: 52°   rake: -73°
Quality: azimuthalGap: -1°   stationPolarityCount: 25   misfitWeightCount: 5.5   misfit: 0.02   stationDistributionRatio: 0.40   meanDistP: 50.5   meanDistT: 51.8   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1770789578834.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.1770789578834.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 302°   dip: 46°   rake: -164°
Nodal Plane 2: strike: 201°   dip: 79°   rake: -45°
Quality: azimuthalGap: 130°   stationPolarityCount: 25   misfit: 0.31   stationDistributionRatio: 0.79   rmsAngDiffAccPref: 35.38   fracAcc30degPref: 0.63   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1770789578834.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1770789578834
Event info last updated: 2026.02.11-06:58:01 UTC
Event first association/location: 2026.02.11-06:07:00 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA