Early-est:     East of Kuril Islands    2026.02.12-21:32:06.27    q:C      mb:5.0*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:     fmamp_polarity_waveform:     hash:

Automatic solution - this event has not been reviewed by a seismologist
Automatically determined event information may be incorrect!

Earthquake Details: Magnitude: mb: 5.0* [21]    Mwp: - [0]    Mwpd: - [0] Region: East of Kuril Islands Origin Time: 2026.02.12-21:32:06.27 UTC Hypocenter: lat: 43.90°  lon: 149.60°  [+/-51km]    depth: 9km  [+/-53km] Location Quality: qualityCode:  C     stdErr: 1.2s   assocPhases: 62   usedPhases: 19 minDist: 5.1°   maxDist: 150.4°   AzGap: 98°   2ndAzGap: 193°   atten: -0.95 [+/-0.35] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 44km   maxHorUnc: 51km   azMaxHorUnc: 102° 68%ConfEllipsoid:   semiMajorAxisLength: 69km   majorAxisAzimuth: 272°   majorAxisPlunge: 32°   semiIntermediateAxisLength: 56km   intermediateAxisAzimuth: 173°   intermediateAxisPlunge: 14°   semiMinorAxisLength: 43km Tsunamigeneic Assesment: Discriminants: Prob Underwater: >99% T50Ex: 0.5 [20]    Td: 0.8Xs [2]    Td*T50Ex: - [0]    To: 21.2s [19] Closest plate boundaries:    Okhotsk / Pacific [subduction zone]: distance: ~30km    Pacific \ Okhotsk [subduction zone]: distance: ~540km Subduction geometry:    Zone: Kamchatka/Kurils/Japan: DEBUG: error: [Errno 2] No such file or directory: 'gmt'    Slab depth at epicenter: error: evaluating slab depth: -999.9 Decision table (TEST!): Event type: Subduction Zone Other Thrust/Normal Strike-slip Compatible close plate boundary?:  YES (30km)  no  no Prob underwater:  >99%  >99%  >99% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        9km        9km        9km Slab depth at epicenter:        n/a        -        - Tsunami and Rupture predictions (TEST!): No prediction: Event too small (Mwp<7.0) or too few Mwp readings (N<20)

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 35°   dip: 43°   rake: 102° Nodal Plane 2: strike: 198°   dip: 48°   rake: 79° Quality: azimuthalGap: -1°   stationPolarityCount: 23   misfitWeightCount: 4.6   misfit: 0.05   stationDistributionRatio: 0.25   meanDistP: 52.4   meanDistT: 46.4   qualityCode: D Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
First-motion Focal Mechanism (FMAMP_POLARITY_WAVEFORM):    (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/_polarity_waveform
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: 193°   stationPolarityCount: 22   misfit: 0.99   stationDistributionRatio: 0.70   rmsAngDiffAccPref: 7.21   fracAcc30degPref: 0.00   qualityCode: E Method: methodID: smi:gov.usgs/focalmec/HASH_1.2

Event ID: smi:alomax.net_BETA/author/ee/event/1770931930237
Event info last updated: 2026.02.12-22:31:02 UTC
Event first association/location: 2026.02.12-21:41:00 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA