Early-est: Ionian Sea 2026.10.05-03:56:33.52 q:B mb:- 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: - [0] Mwp: - [0] Mwpd: - [0]
Region:	Ionian Sea
Origin Time:	2026.10.05-03:56:33.52 UTC
Hypocenter:	lat: 37.26° lon: 20.42° [+/-15km] depth: 10km [+/-14km]
Location Quality:	qualityCode: B stdErr: 1.7s assocPhases: 8 usedPhases: 7 minDist: 1.2° maxDist: 123.7° AzGap: 130° 2ndAzGap: 170° atten: -9.90 [+/-0.00]
Location Uncertainty:	68%ConfEllipse: minHorUnc: 10km maxHorUnc: 15km azMaxHorUnc: 4° 68%ConfEllipsoid: semiMajorAxisLength: 18km majorAxisAzimuth: 184° majorAxisPlunge: 2° semiIntermediateAxisLength: 14km intermediateAxisAzimuth: 280° intermediateAxisPlunge: 73° semiMinorAxisLength: 13km

Tsunamigeneic Assesment:

Discriminants:

Prob Underwater: >99%
T50Ex: - [0]    Td: -s [0]    Td*T50Ex: - [0]    To: -s [0]
Closest plate boundaries:
   Aegean Sea / Africa [subduction zone]: distance: ~40km
   Aegean Sea - Eurasia [continental convergent boundary]: distance: ~60km
   Eurasia / Africa [subduction zone]: distance: ~60km
   Eurasia - Africa [oceanic convergent boundary]: distance: ~80km
Subduction geometry: none or not available

Decision table (TEST!):

Event type:

Subduction Zone

Other Thrust/Normal

Strike-slip

Compatible close plate boundary?:

YES (40km)

YES (60km)

Prob underwater:

>99%

Td*T50Ex:

Td*To:

Mwp magnitude:

Hypocenter depth:

10km

Slab depth at epicenter:

n/a

First-motion Focal Mechanism (FMAMP_POLARITY): (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/_polarity

./hypo.1791172593523.mech.fmamp_polarity.mechanism.jpg

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: 0° stationPolarityCount: 6 misfit: 0.99 stationDistributionRatio: 0.00 rmsAngDiffAccPref: 0.00 fracAcc30degPref: 0.00 qualityCode: F
Method:	methodID: smi:gov.usgs/focalmec/HASH_1.2

./hypo.1791172593523.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.1791172593523.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.1791172593523.mech.fmamp_amp_mwp.mechanism.jpg

Event ID: smi:KOERI/ee/event/1791172593523
Event info last updated: 2026.10.05-04:57:02 UTC
Event first association/location: 2026.10.05-04:57:02 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI

Early-est: Ionian Sea 2026.10.05-03:56:33.52 q:B mb:- 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!