Early-est:     Near Coast of Central Chile    2025.01.26-20:54:29.56    q:B      mb:4.8    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: 4.8 [9]    Mwp: 4.7X [2]    Mwpd: - [0] Region: Near Coast of Central Chile Origin Time: 2025.01.26-20:54:29.56 UTC Hypocenter: lat: -30.68°  lon: -71.89°  [+/-6km]    depth: 10km  [+/-6km] Location Quality: qualityCode:  B     stdErr: 1.2s   assocPhases: 47   usedPhases: 24 minDist: 1.1°   maxDist: 165.5°   AzGap: 101°   2ndAzGap: 117°   atten: -1.47 [+/-0.25] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 5km   maxHorUnc: 6km   azMaxHorUnc: 94° 68%ConfEllipsoid:   semiMajorAxisLength: 8km   majorAxisAzimuth: 274°   majorAxisPlunge: 2°   semiIntermediateAxisLength: 7km   intermediateAxisAzimuth: 6°   intermediateAxisPlunge: 42°   semiMinorAxisLength: 6km Tsunamigeneic Assesment: Discriminants: Prob Underwater: >99% T50Ex: 0.6 [7]    Td: 0.2Xs [1]    Td*T50Ex: - [0]    To: 12.3Xs [2] Closest plate boundaries:    Nazca \ South America [subduction zone]: distance: ~80km Subduction geometry:    Zone: South America    Slab depth at epicenter: 20km Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (80km)  no  no Prob underwater:  >99%  >99%  >99% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        10km        10km        10km Slab depth at epicenter:        20km        -        -

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C) Nodal Plane 1: strike: 22°   dip: 62°   rake: 171° Nodal Plane 2: strike: 117°   dip: 82°   rake: 29° Quality: azimuthalGap: -1°   stationPolarityCount: 23   misfitWeightCount: 8.4   misfit: 0.09   stationDistributionRatio: 0.36   meanDistP: 34.6   meanDistT: 24.1   qualityCode: C Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
First-motion Focal Mechanism (HASH): Nodal Plane 1: strike: 25°   dip: 67°   rake: 172° Nodal Plane 2: strike: 118°   dip: 83°   rake: 23° Quality: azimuthalGap: 100°   stationPolarityCount: 23   misfit: 0.15   stationDistributionRatio: 0.71   rmsAngDiffAccPref: 16.09   fracAcc30degPref: 0.99   qualityCode: B 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/1737924876474
Event info last updated: 2025.01.26-21:55:03 UTC
Event first association/location: 2025.01.26-20:59:03 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI