Early-est:     South of Java, Indonesia    2026.10.11-03:30:19.70    q:A      mb:5.1    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: 5.1 [77]    Mwp: - [0]    Mwpd: 5.6Xinv [1] Region: South of Java, Indonesia Origin Time: 2026.10.11-03:30:19.70 UTC Hypocenter: lat: -8.61°  lon: 106.47°  [+/-14km]    depth: 10km  [+/-14km] Location Quality: qualityCode:  A     stdErr: 1.1s   assocPhases: 124   usedPhases: 99 minDist: 2.0°   maxDist: 154.5°   AzGap: 35°   2ndAzGap: 46°   atten: -0.88 [+/-0.22] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 14km   maxHorUnc: 14km   azMaxHorUnc: 104° 68%ConfEllipsoid:   semiMajorAxisLength: 18km   majorAxisAzimuth: 113°   majorAxisPlunge: 20°   semiIntermediateAxisLength: 17km   intermediateAxisAzimuth: 205°   intermediateAxisPlunge: 4°   semiMinorAxisLength: 14km Tsunamigeneic Assesment: Discriminants: Prob Underwater: >99% T50Ex: 0.5 [34]    Td: 4.4Xs [2]    Td*T50Ex: - [0]    To: 4.8s [30] Closest plate boundaries:    Sunda / Australia [subduction zone]: distance: ~80km Subduction geometry:    Zone: Sumatra-Java    Slab depth at epicenter: 17km Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (80km)  no  no Prob underwater:  >99%  >99%  >99% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        10km        10km        10km Slab depth at epicenter:        17km        -        -

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 259°   dip: 43°   rake: 106° Nodal Plane 2: strike: 57°   dip: 49°   rake: 75° Quality: azimuthalGap: -1°   stationPolarityCount: 91   misfitWeightCount: 10.0   misfit: 0.16   stationDistributionRatio: 0.50   meanDistP: 43.1   meanDistT: 34.2   qualityCode: D Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
First-motion Focal Mechanism (HASH):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 213°   dip: 77°   rake: -154° Nodal Plane 2: strike: 116°   dip: 64°   rake: -15° Quality: azimuthalGap: 43°   stationPolarityCount: 91   misfit: 0.40   stationDistributionRatio: 0.56   rmsAngDiffAccPref: 46.62   fracAcc30degPref: 0.52   qualityCode: D Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
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
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

Event ID: smi:KOERI/ee/event/1791689427812
Event info last updated: 2026.10.11-04:30:27 UTC
Event first association/location: 2026.10.11-03:36:14 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI