Early-est:     Near Coast of Central Chile    2026.02.12-13:34:31.02    q:A      mb:5.6    Mwp:6.3*    Mwpd:-    Td*T50Ex:2.0     fmamp_polarity:./hypo.1770903265121.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1770903265121.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1770903265121.mech.hash.thumb.jpg

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

Earthquake Details:
Magnitude: mb: 5.6 [66]    Mwp: 6.3* [51]    Mwpd: 6.4Xinv [52]
Region: Near Coast of Central Chile
Origin Time: 2026.02.12-13:34:31.02 UTC
Hypocenter: lat: -30.79°  lon: -71.43°  [+/-8km]    depth: 50km  [+/-6km]
Location Quality: qualityCode:  A     stdErr: 1.3s   assocPhases: 231   usedPhases: 119
minDist: 0.6°   maxDist: 179.0°   AzGap: 48°   2ndAzGap: 68°   atten: -1.33 [+/-0.18]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 4km   maxHorUnc: 8km   azMaxHorUnc: 90°
68%ConfEllipsoid:   semiMajorAxisLength: 10km   majorAxisAzimuth: 90°   majorAxisPlunge: 14°   semiIntermediateAxisLength: 6km   intermediateAxisAzimuth: 308°   intermediateAxisPlunge: 72°   semiMinorAxisLength: 5km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 0.7 [66]    Td: 2.9s [10]    Td*T50Ex: 2.0 [10]    To: 10.5s [65]
Closest plate boundaries:
   Nazca \ South America [subduction zone]: distance: ~110km
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 (110km)
 no
 no
Prob underwater:
 <1%
 <1%
 <1%
Td*T50Ex:
   2.0
   2.0
   2.0
Td*To:
     30.4
     30.4
     30.4
Mwp magnitude:
       6.3*
       6.3*
       6.3*
Hypocenter depth:
       50km
       50km
       50km
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)
./hypo.1770903265121.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):
Nodal Plane 1: strike: 40°   dip: 45°   rake: 111°
Nodal Plane 2: strike: 191°   dip: 48°   rake: 70°
Quality: azimuthalGap: -1°   stationPolarityCount: 79   misfitWeightCount: 21.1   misfit: 0.09   stationDistributionRatio: 0.55   meanDistP: 29.9   meanDistT: 22.5   qualityCode: B
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1770903265121.mech.fmamp_polarity.mechanism.jpg
First-motion Focal Mechanism (FMAMP_POLARITY_WAVEFORM):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 11°   dip: 30°   rake: 97°
Nodal Plane 2: strike: 183°   dip: 60°   rake: 86°
Quality: azimuthalGap: -1°   stationPolarityCount: 20   misfitWeightCount: 8.6   misfit: 0.00   stationDistributionRatio: 0.54   meanDistP: 41.2   meanDistT: 23.8   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity_waveform
./hypo.1770903265121.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):
Nodal Plane 1: strike: 52°   dip: 44°   rake: 110°
Nodal Plane 2: strike: 206°   dip: 49°   rake: 72°
Quality: azimuthalGap: 44°   stationPolarityCount: 79   misfit: 0.07   stationDistributionRatio: 0.75   rmsAngDiffAccPref: 27.46   fracAcc30degPref: 0.80   qualityCode: B
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1770903265121.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1770903265121
Event info last updated: 2026.02.12-14:33:01 UTC
Event first association/location: 2026.02.12-13:36:02 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA