Early-est:     Off East Coast of Kamchatka    2026.10.11-11:18:22.07    q:B      mb:5.0    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: 5.0 [46]    Mwp: - [0]    Mwpd: - [0] Region: Off East Coast of Kamchatka Origin Time: 2026.10.11-11:18:22.07 UTC Hypocenter: lat: 52.87°  lon: 160.04°  [+/-17km]    depth: 1km  [+/-14km] Location Quality: qualityCode:  B     stdErr: 1.9s   assocPhases: 82   usedPhases: 57 minDist: 15.7°   maxDist: 140.0°   AzGap: 104°   2ndAzGap: 135°   atten: -0.90 [+/-0.30] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 10km   maxHorUnc: 17km   azMaxHorUnc: 131° 68%ConfEllipsoid:   semiMajorAxisLength: 21km   majorAxisAzimuth: 310°   majorAxisPlunge: 7°   semiIntermediateAxisLength: 14km   intermediateAxisAzimuth: 202°   intermediateAxisPlunge: 68°   semiMinorAxisLength: 12km Tsunamigeneic Assesment: Discriminants: Prob Underwater: >99% T50Ex: 0.2 [18]    Td: -s [0]    Td*T50Ex: - [0]    To: 0.9s [16] Closest plate boundaries:    Okhotsk / Pacific [subduction zone]: distance: ~100km    North America / Pacific [subduction zone]: distance: ~370km    Okhotsk / North America [subduction zone]: distance: ~370km Subduction geometry:    Zone: Kamchatka/Kurils/Japan    Slab depth at epicenter: 38km Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (100km)  no  no Prob underwater:  >99%  >99%  >99% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        1km        1km        1km Slab depth at epicenter:        38km        -        -

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 6°   dip: 40°   rake: -60° Nodal Plane 2: strike: 150°   dip: 56°   rake: -112° Quality: azimuthalGap: -1°   stationPolarityCount: 48   misfitWeightCount: 6.0   misfit: 0.12   stationDistributionRatio: 0.58   meanDistP: 29.6   meanDistT: 46.0   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: 351°   dip: 32°   rake: -48° Nodal Plane 2: strike: 124°   dip: 67°   rake: -113° Quality: azimuthalGap: 148°   stationPolarityCount: 48   misfit: 0.27   stationDistributionRatio: 0.64   rmsAngDiffAccPref: 35.39   fracAcc30degPref: 0.54   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: 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
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

Event ID: smi:KOERI/ee/event/1791717502655
Event info last updated: 2026.10.11-12:18:40 UTC
Event first association/location: 2026.10.11-11:28:51 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI