Early-est:     Off East Coast of Kamchatka    2025.08.02-23:24:35.58    q:B      mb:5.0*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1754177076689.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1754177076689.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1754177076689.mech.hash.thumb.jpg

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

Earthquake Details:
Magnitude: mb: 5.0* [45]    Mwp: 4.9X [1]    Mwpd: - [0]
Region: Off East Coast of Kamchatka
Origin Time: 2025.08.02-23:24:35.58 UTC
Hypocenter: lat: 51.68°  lon: 159.13°  [+/-17km]    depth: 30km  [+/-21km]
Location Quality: qualityCode:  B     stdErr: 1.2s   assocPhases: 100   usedPhases: 51
minDist: 1.4°   maxDist: 85.1°   AzGap: 150°   2ndAzGap: 199°   atten: -0.91 [+/-0.32]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 13km   maxHorUnc: 17km   azMaxHorUnc: 134°
68%ConfEllipsoid:   semiMajorAxisLength: 22km   majorAxisAzimuth: 310°   majorAxisPlunge: 49°   semiIntermediateAxisLength: 19km   intermediateAxisAzimuth: 140°   intermediateAxisPlunge: 40°   semiMinorAxisLength: 16km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.4 [29]    Td: 0.9Xs [2]    Td*T50Ex: - [0]    To: 2.5s [24]
Closest plate boundaries:
   Okhotsk / Pacific [subduction zone]: distance: ~100km
   North America / Pacific [subduction zone]: distance: ~510km
   Okhotsk / North America [subduction zone]: distance: ~510km
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:
       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)
./hypo.1754177076689.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 102°   dip: 45°   rake: 57°
Nodal Plane 2: strike: 324°   dip: 54°   rake: 118°
Quality: azimuthalGap: -1°   stationPolarityCount: 40   misfitWeightCount: 6.9   misfit: 0.06   stationDistributionRatio: 0.42   meanDistP: 51.4   meanDistT: 41.4   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1754177076689.mech.fmamp_polarity.mechanism.jpg
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
./hypo.1754177076689.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 179°   dip: 82°   rake: -93°
Nodal Plane 2: strike: 22°   dip: 9°   rake: -67°
Quality: azimuthalGap: 149°   stationPolarityCount: 40   misfit: 0.25   stationDistributionRatio: 0.72   rmsAngDiffAccPref: 30.61   fracAcc30degPref: 0.66   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1754177076689.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1754177076689
Event info last updated: 2025.08.03-00:23:01 UTC
Event first association/location: 2025.08.02-23:31:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA