Early-est:     Off East Coast of Kamchatka    2025.08.04-06:04:53.35    q:B      mb:4.9*    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: 4.9* [22]    Mwp: - [0]    Mwpd: - [0] Region: Off East Coast of Kamchatka Origin Time: 2025.08.04-06:04:53.35 UTC Hypocenter: lat: 52.42°  lon: 159.48°  [+/-13km]    depth: 59km  [+/-17km] Location Quality: qualityCode:  B     stdErr: 0.8s   assocPhases: 48   usedPhases: 27 minDist: 0.8°   maxDist: 84.9°   AzGap: 222°   2ndAzGap: 224°   atten: -1.61 [+/-0.44] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 11km   maxHorUnc: 13km   azMaxHorUnc: 122° 68%ConfEllipsoid:   semiMajorAxisLength: 17km   majorAxisAzimuth: 107°   majorAxisPlunge: 81°   semiIntermediateAxisLength: 16km   intermediateAxisAzimuth: 303°   intermediateAxisPlunge: 9°   semiMinorAxisLength: 13km Tsunamigeneic Assesment: Discriminants: Prob Underwater: >99% T50Ex: 0.3 [10]    Td: -s [0]    Td*T50Ex: - [0]    To: 1.9s [8] Closest plate boundaries:    Okhotsk / Pacific [subduction zone]: distance: ~100km    North America / Pacific [subduction zone]: distance: ~430km    Okhotsk / North America [subduction zone]: distance: ~430km 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 (100km)  no  no Prob underwater:  >99%  >99%  >99% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        59km        59km        59km 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: Unreliable solution, qualityCode=C) Nodal Plane 1: strike: 190°   dip: 10°   rake: -111° Nodal Plane 2: strike: 31°   dip: 81°   rake: -86° Quality: azimuthalGap: -1°   stationPolarityCount: 24   misfitWeightCount: 5.3   misfit: 0.09   stationDistributionRatio: 0.66   meanDistP: 39.0   meanDistT: 47.2   qualityCode: C 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):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D) Nodal Plane 1: strike: 147°   dip: 39°   rake: -139° Nodal Plane 2: strike: 23°   dip: 66°   rake: -58° Quality: azimuthalGap: 133°   stationPolarityCount: 24   misfit: 0.23   stationDistributionRatio: 0.76   rmsAngDiffAccPref: 52.76   fracAcc30degPref: 0.33   qualityCode: D Method: methodID: smi:gov.usgs/focalmec/HASH_1.2

Event ID: smi:alomax.net_BETA/author/ee/event/1754287493603
Event info last updated: 2025.08.04-07:03:00 UTC
Event first association/location: 2025.08.04-06:17:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA