Early-est:     Chile - Bolivia Border Region    2025.06.07-14:01:36.42    q:B      mb:4.7    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: 4.7 [14]    Mwp: 4.6X [2]    Mwpd: - [0] Region: Chile - Bolivia Border Region Origin Time: 2025.06.07-14:01:36.42 UTC Hypocenter: lat: -21.09°  lon: -68.96°  [+/-14km]    depth: 121km  [+/-17km] Location Quality: qualityCode:  B     stdErr: 1.4s   assocPhases: 43   usedPhases: 20 minDist: 1.4°   maxDist: 146.7°   AzGap: 124°   2ndAzGap: 130°   atten: -1.27 [+/-0.23] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 12km   maxHorUnc: 14km   azMaxHorUnc: 67° 68%ConfEllipsoid:   semiMajorAxisLength: 19km   majorAxisAzimuth: 249°   majorAxisPlunge: 35°   semiIntermediateAxisLength: 16km   intermediateAxisAzimuth: 40°   intermediateAxisPlunge: 51°   semiMinorAxisLength: 15km Tsunamigeneic Assesment: Discriminants: Prob Underwater: <1% T50Ex: 0.0 [6]    Td: 0.5Xs [1]    Td*T50Ex: - [0]    To: 1.3Xs [3] Closest plate boundaries:    Altiplano - South America [continental rift boundary]: distance: ~50km    Nazca \ Altiplano [subduction zone]: distance: ~240km    Nazca \ South America [subduction zone]: distance: ~260km Subduction geometry:    Zone: South America    Slab depth at epicenter: 92km Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (240km)  no  no Prob underwater:  <1%  <1%  <1% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        121km        121km        121km Slab depth at epicenter:        92km        -        -

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C) Nodal Plane 1: strike: 195°   dip: 50°   rake: -135° Nodal Plane 2: strike: 72°   dip: 57°   rake: -50° Quality: azimuthalGap: -1°   stationPolarityCount: 21   misfitWeightCount: 9.3   misfit: 0.13   stationDistributionRatio: 0.54   meanDistP: 36.7   meanDistT: 31.9   qualityCode: C Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 181°   dip: 64°   rake: -157° Nodal Plane 2: strike: 80°   dip: 69°   rake: -28° Quality: azimuthalGap: 124°   stationPolarityCount: 21   misfit: 0.29   stationDistributionRatio: 0.57   rmsAngDiffAccPref: 39.17   fracAcc30degPref: 0.53   qualityCode: D 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/1749304894701
Event info last updated: 2025.06.07-15:02:08 UTC
Event first association/location: 2025.06.07-14:06:24 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI