Early-est:     East of Kuril Islands    2025.08.03-14:05:54.86    q:C      mb:4.7*    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: 4.7* [24]    Mwp: - [0]    Mwpd: - [0] Region: East of Kuril Islands Origin Time: 2025.08.03-14:05:54.86 UTC Hypocenter: lat: 50.36°  lon: 159.18°  [+/-26km]    depth: 5km  [+/-28km] Location Quality: qualityCode:  C     stdErr: 1.8s   assocPhases: 67   usedPhases: 30 minDist: 11.3°   maxDist: 144.6°   AzGap: 141°   2ndAzGap: 171°   atten: -1.30 [+/-0.49] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 21km   maxHorUnc: 26km   azMaxHorUnc: 8° 68%ConfEllipsoid:   semiMajorAxisLength: 33km   majorAxisAzimuth: 200°   majorAxisPlunge: 25°   semiIntermediateAxisLength: 29km   intermediateAxisAzimuth: 313°   intermediateAxisPlunge: 39°   semiMinorAxisLength: 23km Tsunamigeneic Assesment: Discriminants: Prob Underwater: >99% T50Ex: 0.4 [9]    Td: -s [0]    Td*T50Ex: - [0]    To: 14.6s [8] Closest plate boundaries:    Okhotsk / Pacific [subduction zone]: distance: ~20km    North America / Pacific [subduction zone]: distance: ~630km    Okhotsk / North America [subduction zone]: distance: ~630km 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 (20km)  no  no Prob underwater:  >99%  >99%  >99% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        5km        5km        5km 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: 160°   dip: 25°   rake: -8° Nodal Plane 2: strike: 257°   dip: 87°   rake: -115° Quality: azimuthalGap: -1°   stationPolarityCount: 27   misfitWeightCount: 6.0   misfit: 0.09   stationDistributionRatio: 0.36   meanDistP: 54.4   meanDistT: 51.4   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: 171°   stationPolarityCount: 27   misfit: 0.99   stationDistributionRatio: 0.70   rmsAngDiffAccPref: 34.21   fracAcc30degPref: 0.00   qualityCode: E Method: methodID: smi:gov.usgs/focalmec/HASH_1.2

Event ID: smi:alomax.net_BETA/author/ee/event/1754229955778
Event info last updated: 2025.08.03-15:04:02 UTC
Event first association/location: 2025.08.03-14:13:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA