Early-est:     Near East Coast of Kamchatka    2026.10.07-18:15:08.38    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 [65]    Mwp: - [0]    Mwpd: - [0] Region: Near East Coast of Kamchatka Origin Time: 2026.10.07-18:15:08.38 UTC Hypocenter: lat: 54.37°  lon: 162.51°  [+/-18km]    depth: 18km  [+/-21km] Location Quality: qualityCode:  B     stdErr: 1.4s   assocPhases: 111   usedPhases: 75 minDist: 8.2°   maxDist: 125.6°   AzGap: 150°   2ndAzGap: 167°   atten: -0.81 [+/-0.25] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 13km   maxHorUnc: 18km   azMaxHorUnc: 103° 68%ConfEllipsoid:   semiMajorAxisLength: 24km   majorAxisAzimuth: 284°   majorAxisPlunge: 39°   semiIntermediateAxisLength: 18km   intermediateAxisAzimuth: 97°   intermediateAxisPlunge: 51°   semiMinorAxisLength: 16km Tsunamigeneic Assesment: Discriminants: Prob Underwater: >99% T50Ex: 0.4 [44]    Td: 2.7Xs [1]    Td*T50Ex: - [0]    To: 1.9s [36] Closest plate boundaries:    Okhotsk / Pacific [subduction zone]: distance: ~50km    North America / Pacific [subduction zone]: distance: ~140km    Okhotsk / North America [subduction zone]: distance: ~140km Subduction geometry:    Zone: Kamchatka/Kurils/Japan    Slab depth at epicenter: 16km Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (50km)  no  no Prob underwater:  >99%  >99%  >99% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        18km        18km        18km Slab depth at epicenter:        16km        -        -

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 22°   dip: 25°   rake: -52° Nodal Plane 2: strike: 161°   dip: 71°   rake: -106° Quality: azimuthalGap: -1°   stationPolarityCount: 58   misfitWeightCount: 5.5   misfit: 0.13   stationDistributionRatio: 0.65   meanDistP: 32.7   meanDistT: 45.5   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: 332°   dip: 23°   rake: -64° Nodal Plane 2: strike: 124°   dip: 70°   rake: -100° Quality: azimuthalGap: 105°   stationPolarityCount: 58   misfit: 0.42   stationDistributionRatio: 0.62   rmsAngDiffAccPref: 34.68   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/1791396909056
Event info last updated: 2026.10.07-19:15:22 UTC
Event first association/location: 2026.10.07-18:23:50 UTC
Software: Early-est 1.2.0 (2016.06.27)
Agency: KOERI