Early-est:     Off Coast of Southern Chile    2025.02.02-10:25:30.25    q:B      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 [12]    Mwp: - [0]    Mwpd: - [0] Region: Off Coast of Southern Chile Origin Time: 2025.02.02-10:25:30.25 UTC Hypocenter: lat: -44.28°  lon: -79.67°  [+/-7km]    depth: 10km  [+/-8km] Location Quality: qualityCode:  B     stdErr: 1.3s   assocPhases: 20   usedPhases: 16 minDist: 5.1°   maxDist: 161.3°   AzGap: 93°   2ndAzGap: 177°   atten: -0.99 [+/-0.46] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 6km   maxHorUnc: 7km   azMaxHorUnc: 82° 68%ConfEllipsoid:   semiMajorAxisLength: 10km   majorAxisAzimuth: 83°   majorAxisPlunge: 36°   semiIntermediateAxisLength: 7km   intermediateAxisAzimuth: 178°   intermediateAxisPlunge: 8°   semiMinorAxisLength: 7km Tsunamigeneic Assesment: Discriminants: Prob Underwater: >99% T50Ex: 0.4 [10]    Td: -s [0]    Td*T50Ex: - [0]    To: 10.8Xs [2] Closest plate boundaries:    Antarctica - Nazca [oceanic transform fault]: distance: ~40km    Nazca \ South America [subduction zone]: distance: ~310km    Antarctica \ South America [subduction zone]: distance: ~330km Subduction geometry: none or not available Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  no  no  YES (40km) Prob underwater:  >99%  >99%  >99% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        10km        10km        10km Slab depth at epicenter:        n/a        -        -

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 86°   dip: 23°   rake: -36° Nodal Plane 2: strike: 209°   dip: 77°   rake: -109° Quality: azimuthalGap: -1°   stationPolarityCount: 12   misfitWeightCount: 3.8   misfit: 0.10   stationDistributionRatio: 0.39   meanDistP: 32.6   meanDistT: 39.0   qualityCode: D 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: 208°   dip: 66°   rake: -132° Nodal Plane 2: strike: 93°   dip: 47°   rake: -34° Quality: azimuthalGap: 124°   stationPolarityCount: 12   misfit: 0.15   stationDistributionRatio: 0.57   rmsAngDiffAccPref: 45.75   fracAcc30degPref: 0.29   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/1738491930365
Event info last updated: 2025.02.02-11:26:02 UTC
Event first association/location: 2025.02.02-10:37:03 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI