Early-est:     Off East Coast of Kamchatka    2025.08.06-10:43:14.85    q:B      mb:5.2*    Mwp:6.0    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1754476999090.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1754476999090.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1754476999090.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: 5.2* [83]    Mwp: 6.0 [18]    Mwpd: 6.1Xinv [16]
Region: Off East Coast of Kamchatka
Origin Time: 2025.08.06-10:43:14.85 UTC
Hypocenter: lat: 51.66°  lon: 159.03°  [+/-18km]    depth: 5km  [+/-17km]
Location Quality: qualityCode:  B     stdErr: 2.0s   assocPhases: 148   usedPhases: 76
minDist: 1.4°   maxDist: 158.4°   AzGap: 92°   2ndAzGap: 101°   atten: -1.11 [+/-0.25]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 15km   maxHorUnc: 18km   azMaxHorUnc: 138°
68%ConfEllipsoid:   semiMajorAxisLength: 23km   majorAxisAzimuth: 130°   majorAxisPlunge: 22°   semiIntermediateAxisLength: 19km   intermediateAxisAzimuth: 29°   intermediateAxisPlunge: 26°   semiMinorAxisLength: 15km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.5 [67]    Td: 3.8Xs [1]    Td*T50Ex: - [0]    To: 18.6s [61]
Closest plate boundaries:
   Okhotsk / Pacific [subduction zone]: distance: ~110km
   North America / Pacific [subduction zone]: distance: ~520km
   Okhotsk / North America [subduction zone]: distance: ~520km
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 (110km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       6.0
       6.0
       6.0
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)
./hypo.1754476999090.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 13°   dip: 27°   rake: -7°
Nodal Plane 2: strike: 110°   dip: 87°   rake: -116°
Quality: azimuthalGap: -1°   stationPolarityCount: 64   misfitWeightCount: 9.7   misfit: 0.21   stationDistributionRatio: 0.52   meanDistP: 45.4   meanDistT: 49.6   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1754476999090.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.1754476999090.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 267°   dip: 84°   rake: -176°
Nodal Plane 2: strike: 177°   dip: 86°   rake: -6°
Quality: azimuthalGap: 115°   stationPolarityCount: 64   misfit: 0.41   stationDistributionRatio: 0.68   rmsAngDiffAccPref: 34.64   fracAcc30degPref: 0.88   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1754476999090.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1754476999090
Event info last updated: 2025.08.06-11:42:00 UTC
Event first association/location: 2025.08.06-10:50:06 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA