Early-est:     Off East Coast of Kamchatka    2026.10.07-00:30:05.50    q:B      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 [78]    Mwp: - [0]    Mwpd: - [0] Region: Off East Coast of Kamchatka Origin Time: 2026.10.07-00:30:05.50 UTC Hypocenter: lat: 52.85°  lon: 159.74°  [+/-14km]    depth: 16km  [+/-56km] Location Quality: qualityCode:  B     stdErr: 1.8s   assocPhases: 114   usedPhases: 90 minDist: 17.5°   maxDist: 146.2°   AzGap: 93°   2ndAzGap: 122°   atten: -0.81 [+/-0.28] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 12km   maxHorUnc: 14km   azMaxHorUnc: 88° 68%ConfEllipsoid:   semiMajorAxisLength: 57km   majorAxisAzimuth: 244°   majorAxisPlunge: 79°   semiIntermediateAxisLength: 16km   intermediateAxisAzimuth: 131°   intermediateAxisPlunge: 4°   semiMinorAxisLength: 13km Tsunamigeneic Assesment: Discriminants: Prob Underwater: >99% T50Ex: 0.4 [46]    Td: -s [0]    Td*T50Ex: - [0]    To: 1.3s [43] Closest plate boundaries:    Okhotsk / Pacific [subduction zone]: distance: ~110km    North America / Pacific [subduction zone]: distance: ~390km    Okhotsk / North America [subduction zone]: distance: ~390km Subduction geometry:    Zone: Kamchatka/Kurils/Japan    Slab depth at epicenter: 44km Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (110km)  no  no Prob underwater:  >99%  >99%  >99% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        16km        16km        16km Slab depth at epicenter:        44km        -        -

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 71°   dip: 29°   rake: -76° Nodal Plane 2: strike: 236°   dip: 62°   rake: -97° Quality: azimuthalGap: -1°   stationPolarityCount: 72   misfitWeightCount: 7.3   misfit: 0.18   stationDistributionRatio: 0.33   meanDistP: 36.5   meanDistT: 39.9   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: 103°   dip: 21°   rake: -64° Nodal Plane 2: strike: 256°   dip: 71°   rake: -99° Quality: azimuthalGap: 92°   stationPolarityCount: 73   misfit: 0.38   stationDistributionRatio: 0.67   rmsAngDiffAccPref: 38.13   fracAcc30degPref: 0.50   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/1791333025582
Event info last updated: 2026.10.07-01:30:37 UTC
Event first association/location: 2026.10.07-00:41:05 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI