Early-est:     Near Coast of Northern Chile    2025.11.10-10:49:29.35    q:A      mb:5.4    Mwp:-    Mwpd:-    Td*T50Ex:0.5     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: 5.4 [76]    Mwp: 5.3X [3]    Mwpd: - [0] Region: Near Coast of Northern Chile Origin Time: 2025.11.10-10:49:29.35 UTC Hypocenter: lat: -23.44°  lon: -70.44°  [+/-9km]    depth: 35km  [+/-11km] Location Quality: qualityCode:  A     stdErr: 1.2s   assocPhases: 148   usedPhases: 113 minDist: 1.9°   maxDist: 173.2°   AzGap: 76°   2ndAzGap: 88°   atten: -1.17 [+/-0.14] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 6km   maxHorUnc: 9km   azMaxHorUnc: 85° 68%ConfEllipsoid:   semiMajorAxisLength: 13km   majorAxisAzimuth: 247°   majorAxisPlunge: 53°   semiIntermediateAxisLength: 10km   intermediateAxisAzimuth: 111°   intermediateAxisPlunge: 28°   semiMinorAxisLength: 7km Tsunamigeneic Assesment: Discriminants: Prob Underwater: 31% T50Ex: 0.5 [72]    Td: 1.0s [11]    Td*T50Ex: 0.5 [11]    To: 30.7s [58] Closest plate boundaries:    Nazca \ South America [subduction zone]: distance: ~100km    Altiplano - South America [oceanic transform fault]: distance: ~190km    Nazca \ Altiplano [subduction zone]: distance: ~190km Subduction geometry:    Zone: South America    Slab depth at epicenter: 33km Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (100km)  no  no Prob underwater:  31%  31%  31% Td*T50Ex:    0.5    0.5    0.5 Td*To:      30.7      30.7      30.7 Mwp magnitude:        -        -        - Hypocenter depth:        35km        35km        35km Slab depth at epicenter:        33km        -        -

First-motion Focal Mechanism (FMAMP_POLARITY): Nodal Plane 1: strike: 84°   dip: 21°   rake: -136° Nodal Plane 2: strike: 312°   dip: 76°   rake: -74° Quality: azimuthalGap: -1°   stationPolarityCount: 109   misfitWeightCount: 21.4   misfit: 0.14   stationDistributionRatio: 0.57   meanDistP: 14.3   meanDistT: 13.5   qualityCode: A 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: 84°   dip: 65°   rake: 176° Nodal Plane 2: strike: 176°   dip: 87°   rake: 25° Quality: azimuthalGap: 88°   stationPolarityCount: 109   misfit: 0.28   stationDistributionRatio: 0.62   rmsAngDiffAccPref: 20.70   fracAcc30degPref: 0.82   qualityCode: C Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
First-motion Focal Mechanism (FMAMP_AMP_AREF):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 123°   dip: 43°   rake: -101° Nodal Plane 2: strike: 317°   dip: 48°   rake: -80° Quality: azimuthalGap: -1°   stationPolarityCount: 8   misfitWeightCount: 5.1   misfit: 9999.90   stationDistributionRatio: 0.88   meanDistP: 29.4   meanDistT: 44.0   qualityCode: D 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/1762771770466
Event info last updated: 2025.11.10-11:49:50 UTC
Event first association/location: 2025.11.10-10:52:42 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI