Early-est:     Ecuador    2025.02.01-11:06:05.38    q:C      mb:4.6    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: 4.6 [17]    Mwp: - [0]    Mwpd: - [0] Region: Ecuador Origin Time: 2025.02.01-11:06:05.38 UTC Hypocenter: lat: -0.67°  lon: -77.17°  [+/-13km]    depth: 143km  [+/-23km] Location Quality: qualityCode:  C     stdErr: 1.5s   assocPhases: 44   usedPhases: 20 minDist: 7.7°   maxDist: 149.7°   AzGap: 87°   2ndAzGap: 141°   atten: -1.59 [+/-0.30] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 12km   maxHorUnc: 13km   azMaxHorUnc: 133° 68%ConfEllipsoid:   semiMajorAxisLength: 23km   majorAxisAzimuth: 48°   majorAxisPlunge: 73°   semiIntermediateAxisLength: 17km   intermediateAxisAzimuth: 314°   intermediateAxisPlunge: 1°   semiMinorAxisLength: 13km Tsunamigeneic Assesment: Discriminants: Prob Underwater: <1% T50Ex: 0.5 [13]    Td: 2.1Xs [3]    Td*T50Ex: - [0]    To: 3.8s [8] Closest plate boundaries:    North Andes - South America [continental convergent boundary]: distance: ~120km    Nazca \ North Andes [subduction zone]: distance: ~420km    Nazca \ South America [subduction zone]: distance: ~570km    North Andes / Nazca [subduction zone]: distance: ~750km Subduction geometry:    Zone: South America    Slab depth at epicenter: 195km Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (420km)  no  no Prob underwater:  <1%  <1%  <1% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        143km        143km        143km Slab depth at epicenter:        195km        -        -

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 331°   dip: 48°   rake: -39° Nodal Plane 2: strike: 89°   dip: 62°   rake: -131° Quality: azimuthalGap: -1°   stationPolarityCount: 22   misfitWeightCount: 7.0   misfit: 0.08   stationDistributionRatio: 0.51   meanDistP: 38.9   meanDistT: 32.0   qualityCode: D Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C) Nodal Plane 1: strike: 89°   dip: 63°   rake: -127° Nodal Plane 2: strike: 328°   dip: 45°   rake: -40° Quality: azimuthalGap: 87°   stationPolarityCount: 22   misfit: 0.24   stationDistributionRatio: 0.75   rmsAngDiffAccPref: 31.65   fracAcc30degPref: 0.57   qualityCode: C 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/1738407959973
Event info last updated: 2025.02.01-12:06:35 UTC
Event first association/location: 2025.02.01-11:15:36 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI