Early-est:     Southeast of Easter Island    2025.12.14-09:44:47.92    q:C      mb:5.0    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1765705487911.mech.fmamp_polarity.thumb.jpg     hash:./hypo.1765705487911.mech.hash.thumb.jpg     fmamp_amp_aref:./hypo.1765705487911.mech.fmamp_amp_aref.thumb.jpg     fmamp_amp_mwp:./hypo.1765705487911.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: 5.0 [17]    Mwp: - [0]    Mwpd: - [0]
Region: Southeast of Easter Island
Origin Time: 2025.12.14-09:44:47.92 UTC
Hypocenter: lat: -35.59°  lon: -102.23°  [+/-11km]    depth: 15km  [+/-13km]
Location Quality: qualityCode:  C     stdErr: 2.2s   assocPhases: 58   usedPhases: 27
minDist: 24.6°   maxDist: 152.2°   AzGap: 82°   2ndAzGap: 154°   atten: -0.90 [+/-0.63]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 10km   maxHorUnc: 11km   azMaxHorUnc: 162°
68%ConfEllipsoid:   semiMajorAxisLength: 15km   majorAxisAzimuth: 146°   majorAxisPlunge: 41°   semiIntermediateAxisLength: 13km   intermediateAxisAzimuth: 30°   intermediateAxisPlunge: 27°   semiMinorAxisLength: 11km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.5 [14]    Td: 2.3Xs [1]    Td*T50Ex: - [0]    To: 8.0s [12]
Closest plate boundaries:
   Antarctica - Nazca [oceanic transform fault]: distance: ~40km
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:
       15km
       15km
       15km
Slab depth at epicenter:
       n/a
       -
       -
./hypo.1765705487911.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 23°   dip: 26°   rake: -60°
Nodal Plane 2: strike: 171°   dip: 68°   rake: -104°
Quality: azimuthalGap: -1°   stationPolarityCount: 25   misfitWeightCount: 5.8   misfit: 0.22   stationDistributionRatio: 0.35   meanDistP: 38.9   meanDistT: 47.5   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1765705487911.mech.fmamp_polarity.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 286°   dip: 18°   rake: -134°
Nodal Plane 2: strike: 152°   dip: 77°   rake: -77°
Quality: azimuthalGap: 81°   stationPolarityCount: 25   misfit: 0.38   stationDistributionRatio: 0.44   rmsAngDiffAccPref: 42.42   fracAcc30degPref: 0.39   qualityCode: D
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1765705487911.mech.hash.mechanism.jpg
First-motion Focal Mechanism (FMAMP_AMP_AREF):    (No solution available)
Nodal Plane 1: strike: 0°   dip: 0°   rake: nan°
Nodal Plane 2: strike: nan°   dip: nan°   rake: nan°
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.1765705487911.mech.fmamp_amp_aref.mechanism.jpg
First-motion Focal Mechanism (FMAMP_AMP_MWP):    (No solution available)
Nodal Plane 1: strike: 0°   dip: 0°   rake: nan°
Nodal Plane 2: strike: nan°   dip: nan°   rake: nan°
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.1765705487911.mech.fmamp_amp_mwp.mechanism.jpg

Event ID: smi:KOERI/ee/event/1765705487911
Event info last updated: 2025.12.14-10:45:03 UTC
Event first association/location: 2025.12.14-09:57:42 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI