Early-est:     Near Coast of Northern Chile    2026.09.26-19:48:06.53    q:C      mb:4.3*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:     fmamp_polarity_waveform:     hash:

Automatic solution - this event has not been reviewed by a seismologist
Automatically determined event information may be incorrect!

Earthquake Details: Magnitude: mb: 4.3* [8]    Mwp: - [0]    Mwpd: - [0] Region: Near Coast of Northern Chile Origin Time: 2026.09.26-19:48:06.53 UTC Hypocenter: lat: -21.27°  lon: -70.36°  [+/-26km]    depth: 9km  [+/-21km] Location Quality: qualityCode:  C     stdErr: 2.2s   assocPhases: 12   usedPhases: 9 minDist: 4.0°   maxDist: 146.0°   AzGap: 142°   2ndAzGap: 147°   atten: -0.80 [+/-0.13] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 17km   maxHorUnc: 26km   azMaxHorUnc: 83° 68%ConfEllipsoid:   semiMajorAxisLength: 32km   majorAxisAzimuth: 82°   majorAxisPlunge: 4°   semiIntermediateAxisLength: 22km   intermediateAxisAzimuth: 347°   intermediateAxisPlunge: 49°   semiMinorAxisLength: 20km Tsunamigeneic Assesment: Discriminants: Prob Underwater: >99% T50Ex: 1.3X [2]    Td: -s [0]    Td*T50Ex: - [0]    To: 140.3Xs [2] Closest plate boundaries:    Altiplano - South America [continental transform fault]: distance: ~40km    Nazca \ Altiplano [subduction zone]: distance: ~90km    Nazca \ South America [subduction zone]: distance: ~120km Subduction geometry:    Zone: South America: DEBUG: error: [Errno 2] No such file or directory: 'gmt'    Slab depth at epicenter: error: evaluating slab depth: -999.9 Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (90km)  no  YES (40km) Prob underwater:  >99%  >99%  >99% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        9km        9km        9km Slab depth at epicenter:        n/a        -        - Tsunami and Rupture predictions (TEST!): No prediction: Event too small (Mwp<7.0) or too few Mwp readings (N<20)

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 76°   dip: 41°   rake: 15° Nodal Plane 2: strike: 335°   dip: 80°   rake: 130° Quality: azimuthalGap: -1°   stationPolarityCount: 11   misfitWeightCount: 2.1   misfit: 0.04   stationDistributionRatio: 0.35   meanDistP: 53.5   meanDistT: 54.4   qualityCode: D Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
First-motion Focal Mechanism (FMAMP_POLARITY_WAVEFORM):    (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/_polarity_waveform
First-motion Focal Mechanism (HASH):    (No solution available) Nodal Plane 1: strike: 999°   dip: 99°   rake: 999° Nodal Plane 2: strike: 324°   dip: 13°   rake: 135° Quality: azimuthalGap: 156°   stationPolarityCount: 10   misfit: 0.99   stationDistributionRatio: 0.00   rmsAngDiffAccPref: 0.00   fracAcc30degPref: 0.00   qualityCode: E Method: methodID: smi:gov.usgs/focalmec/HASH_1.2

Event ID: smi:alomax.net_BETA/author/ee/event/1790452086978
Event info last updated: 2026.09.26-20:47:01 UTC
Event first association/location: 2026.09.26-20:00:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA