Early-est:     Southern Peru    2025.11.11-07:45:56.97    q:B      mb:4.7    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1762847156940.mech.fmamp_polarity.thumb.jpg     hash:./hypo.1762847156940.mech.hash.thumb.jpg     fmamp_amp_aref:./hypo.1762847156940.mech.fmamp_amp_aref.thumb.jpg     fmamp_amp_mwp:./hypo.1762847156940.mech.fmamp_amp_mwp.thumb.jpg

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

Earthquake Details:
Magnitude: mb: 4.7 [26]    Mwp: - [0]    Mwpd: - [0]
Region: Southern Peru
Origin Time: 2025.11.11-07:45:56.97 UTC
Hypocenter: lat: -16.25°  lon: -71.29°  [+/-13km]    depth: 105km  [+/-16km]
Location Quality: qualityCode:  B     stdErr: 1.0s   assocPhases: 72   usedPhases: 34
minDist: 2.3°   maxDist: 151.4°   AzGap: 92°   2ndAzGap: 102°   atten: -1.03 [+/-0.33]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 11km   maxHorUnc: 13km   azMaxHorUnc: 61°
68%ConfEllipsoid:   semiMajorAxisLength: 17km   majorAxisAzimuth: 235°   majorAxisPlunge: 42°   semiIntermediateAxisLength: 15km   intermediateAxisAzimuth: 80°   intermediateAxisPlunge: 45°   semiMinorAxisLength: 14km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: <1%
T50Ex: 0.2 [13]    Td: -s [0]    Td*T50Ex: - [0]    To: 1.1s [10]
Closest plate boundaries:
   Nazca \ Altiplano [subduction zone]: distance: ~270km
Subduction geometry:    Zone: South America    Slab depth at epicenter: 106km
Decision table (TEST!):
Event type: Subduction Zone Other Thrust/Normal Strike-slip
Compatible close plate boundary?:
 YES (270km)
 no
 no
Prob underwater:
 <1%
 <1%
 <1%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       105km
       105km
       105km
Slab depth at epicenter:
       106km
       -
       -
./hypo.1762847156940.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 30°   dip: 53°   rake: -25°
Nodal Plane 2: strike: 136°   dip: 70°   rake: -140°
Quality: azimuthalGap: -1°   stationPolarityCount: 31   misfitWeightCount: 9.6   misfit: 0.12   stationDistributionRatio: 0.44   meanDistP: 25.8   meanDistT: 43.2   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1762847156940.mech.fmamp_polarity.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 338°   dip: 76°   rake: -180°
Nodal Plane 2: strike: 248°   dip: 90°   rake: -14°
Quality: azimuthalGap: 97°   stationPolarityCount: 31   misfit: 0.38   stationDistributionRatio: 0.74   rmsAngDiffAccPref: 24.25   fracAcc30degPref: 0.90   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1762847156940.mech.hash.mechanism.jpg
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
./hypo.1762847156940.mech.fmamp_amp_aref.mechanism.jpg
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
./hypo.1762847156940.mech.fmamp_amp_mwp.mechanism.jpg

Event ID: smi:KOERI/ee/event/1762847156940
Event info last updated: 2025.11.11-08:46:12 UTC
Event first association/location: 2025.11.11-07:51:37 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI