Early-est:     Caribbean Sea    2025.01.28-13:37:05.14    q:A      mb:4.9    Mwp:-    Mwpd:-    Td*T50Ex:0.6     fmamp_polarity:./hypo.1738071427971.mech.fmamp_polarity.thumb.jpg     hash:./hypo.1738071427971.mech.hash.thumb.jpg     fmamp_amp_aref:./hypo.1738071427971.mech.fmamp_amp_aref.thumb.jpg     fmamp_amp_mwp:./hypo.1738071427971.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 [30]    Mwp: 5.1X [2]    Mwpd: - [0]
Region: Caribbean Sea
Origin Time: 2025.01.28-13:37:05.14 UTC
Hypocenter: lat: 13.20°  lon: -81.73°  [+/-7km]    depth: 10km  [+/-7km]
Location Quality: qualityCode:  A     stdErr: 1.1s   assocPhases: 65   usedPhases: 32
minDist: 4.0°   maxDist: 149.4°   AzGap: 46°   2ndAzGap: 66°   atten: -2.12 [+/-0.17]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 7km   maxHorUnc: 7km   azMaxHorUnc: 73°
68%ConfEllipsoid:   semiMajorAxisLength: 9km   majorAxisAzimuth: 73°   majorAxisPlunge: 4°   semiIntermediateAxisLength: 8km   intermediateAxisAzimuth: 164°   intermediateAxisPlunge: 7°   semiMinorAxisLength: 7km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.6 [27]    Td: 1.0s [4]    Td*T50Ex: 0.6 [4]    To: 22.7s [17]
Closest plate boundaries:
Subduction geometry: none or not available
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 no
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   0.6
   0.6
   0.6
Td*To:
     22.7
     22.7
     22.7
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       10km
       10km
       10km
Slab depth at epicenter:
       n/a
       -
       -
./hypo.1738071427971.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 347°   dip: 53°   rake: 160°
Nodal Plane 2: strike: 90°   dip: 74°   rake: 39°
Quality: azimuthalGap: -1°   stationPolarityCount: 33   misfitWeightCount: 11.5   misfit: 0.10   stationDistributionRatio: 0.58   meanDistP: 40.7   meanDistT: 22.6   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1738071427971.mech.fmamp_polarity.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 343°   dip: 57°   rake: 161°
Nodal Plane 2: strike: 84°   dip: 74°   rake: 34°
Quality: azimuthalGap: 51°   stationPolarityCount: 33   misfit: 0.31   stationDistributionRatio: 0.74   rmsAngDiffAccPref: 31.78   fracAcc30degPref: 0.61   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1738071427971.mech.hash.mechanism.jpg
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
./hypo.1738071427971.mech.fmamp_amp_aref.mechanism.jpg
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
./hypo.1738071427971.mech.fmamp_amp_mwp.mechanism.jpg

Event ID: smi:KOERI/ee/event/1738071427971
Event info last updated: 2025.01.28-14:37:27 UTC
Event first association/location: 2025.01.28-13:39:17 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI