Early-est: Ecuador 2025.12.14-20:23:47.64 q:C mb:4.4 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: 4.4 [10] Mwp: 6.4X [1] Mwpd: - [0]
Region:	Ecuador
Origin Time:	2025.12.14-20:23:47.64 UTC
Hypocenter:	lat: -1.79° lon: -77.84° [+/-15km] depth: 209km [+/-23km]
Location Quality:	qualityCode: C stdErr: 1.5s assocPhases: 44 usedPhases: 14 minDist: 10.2° maxDist: 141.7° AzGap: 116° 2ndAzGap: 146° atten: -1.60 [+/-0.41]
Location Uncertainty:	68%ConfEllipse: minHorUnc: 11km maxHorUnc: 15km azMaxHorUnc: 75° 68%ConfEllipsoid: semiMajorAxisLength: 24km majorAxisAzimuth: 241° majorAxisPlunge: 65° semiIntermediateAxisLength: 17km intermediateAxisAzimuth: 87° intermediateAxisPlunge: 23° semiMinorAxisLength: 14km

Tsunamigeneic Assesment:

Discriminants:

Prob Underwater: <1%
T50Ex: 0.1 [5]    Td: -s [0]    Td*T50Ex: - [0]    To: 1.2Xs [2]
Closest plate boundaries:
   North Andes - South America [continental convergent boundary]: distance: ~100km
   Nazca \ North Andes [subduction zone]: distance: ~400km
   Nazca \ South America [subduction zone]: distance: ~450km
Subduction geometry:    Zone: South America    Slab depth at epicenter: 151km

Decision table (TEST!):

Event type:

Subduction Zone

Other Thrust/Normal

Strike-slip

Compatible close plate boundary?:

YES (400km)

YES (100km)

Prob underwater:

<1%

Td*T50Ex:

Td*To:

Mwp magnitude:

Hypocenter depth:

209km

Slab depth at epicenter:

151km

First-motion Focal Mechanism (FMAMP_POLARITY): (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1:	strike: 72° dip: 60° rake: -158°
Nodal Plane 2:	strike: 331° dip: 71° rake: -32°
Quality:	azimuthalGap: -1° stationPolarityCount: 13 misfitWeightCount: 7.1 misfit: 0.05 stationDistributionRatio: 0.47 meanDistP: 33.1 meanDistT: 43.3 qualityCode: D
Method:	methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity

./hypo.1765743828201.mech.fmamp_polarity.mechanism.jpg

First-motion Focal Mechanism (HASH): (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1:	strike: 22° dip: 77° rake: -167°
Nodal Plane 2:	strike: 289° dip: 78° rake: -13°
Quality:	azimuthalGap: 115° stationPolarityCount: 13 misfit: 0.31 stationDistributionRatio: 0.77 rmsAngDiffAccPref: 43.74 fracAcc30degPref: 0.30 qualityCode: D
Method:	methodID: smi:gov.usgs/focalmec/HASH_1.2

./hypo.1765743828201.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.1765743828201.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.1765743828201.mech.fmamp_amp_mwp.mechanism.jpg

Event ID: smi:KOERI/ee/event/1765743828201
Event info last updated: 2025.12.14-21:23:50 UTC
Event first association/location: 2025.12.14-20:32:49 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI

Early-est: Ecuador 2025.12.14-20:23:47.64 q:C mb:4.4 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!

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