Early-est:     Near East Coast of Kamchatka    2025.08.01-08:31:58.66    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* [70]    Mwp: - [0]    Mwpd: - [0] Region: Near East Coast of Kamchatka Origin Time: 2025.08.01-08:31:58.66 UTC Hypocenter: lat: 51.10°  lon: 158.69°  [+/-20km]    depth: 30km  [+/-30km] Location Quality: qualityCode:  B     stdErr: 1.5s   assocPhases: 139   usedPhases: 76 minDist: 1.9°   maxDist: 157.8°   AzGap: 72°   2ndAzGap: 90°   atten: -0.76 [+/-0.19] Location Uncertainty: 68%ConfEllipse:   minHorUnc: 17km   maxHorUnc: 20km   azMaxHorUnc: 150° 68%ConfEllipsoid:   semiMajorAxisLength: 31km   majorAxisAzimuth: 312°   majorAxisPlunge: 72°   semiIntermediateAxisLength: 24km   intermediateAxisAzimuth: 157°   intermediateAxisPlunge: 17°   semiMinorAxisLength: 20km Tsunamigeneic Assesment: Discriminants: Prob Underwater: >99% T50Ex: 0.5 [39]    Td: -s [0]    Td*T50Ex: - [0]    To: 3.3s [35] Closest plate boundaries:    Okhotsk / Pacific [subduction zone]: distance: ~90km    North America / Pacific [subduction zone]: distance: ~580km    Okhotsk / North America [subduction zone]: distance: ~580km 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 (90km)  no  no Prob underwater:  >99%  >99%  >99% Td*T50Ex:    -    -    - Td*To:      -      -      - Mwp magnitude:        -        -        - Hypocenter depth:        30km        30km        30km 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: 135°   dip: 61°   rake: -154° Nodal Plane 2: strike: 31°   dip: 68°   rake: -32° Quality: azimuthalGap: -1°   stationPolarityCount: 66   misfitWeightCount: 9.0   misfit: 0.14   stationDistributionRatio: 0.42   meanDistP: 44.9   meanDistT: 47.6   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):    (Warning: Unreliable solution, qualityCode=C) Nodal Plane 1: strike: 121°   dip: 87°   rake: 152° Nodal Plane 2: strike: 212°   dip: 62°   rake: 3° Quality: azimuthalGap: 106°   stationPolarityCount: 66   misfit: 0.31   stationDistributionRatio: 0.72   rmsAngDiffAccPref: 25.56   fracAcc30degPref: 0.87   qualityCode: C Method: methodID: smi:gov.usgs/focalmec/HASH_1.2

Event ID: smi:alomax.net_BETA/author/ee/event/1754037117245
Event info last updated: 2025.08.01-09:30:02 UTC
Event first association/location: 2025.08.01-08:37:02 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA