Early-est:     Off East Coast of Kamchatka    2025.08.03-18:56:40.35    q:B      mb:4.8*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1754247401020.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1754247401020.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1754247401020.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: 4.8* [28]    Mwp: - [0]    Mwpd: - [0]
Region: Off East Coast of Kamchatka
Origin Time: 2025.08.03-18:56:40.35 UTC
Hypocenter: lat: 52.59°  lon: 159.78°  [+/-22km]    depth: 59km  [+/-31km]
Location Quality: qualityCode:  B     stdErr: 1.3s   assocPhases: 61   usedPhases: 33
minDist: 0.8°   maxDist: 85.0°   AzGap: 176°   2ndAzGap: 223°   atten: -1.39 [+/-0.35]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 15km   maxHorUnc: 22km   azMaxHorUnc: 136°
68%ConfEllipsoid:   semiMajorAxisLength: 35km   majorAxisAzimuth: 328°   majorAxisPlunge: 55°   semiIntermediateAxisLength: 23km   intermediateAxisAzimuth: 111°   intermediateAxisPlunge: 30°   semiMinorAxisLength: 17km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.4 [18]    Td: -s [0]    Td*T50Ex: - [0]    To: 18.2s [17]
Closest plate boundaries:
   Okhotsk / Pacific [subduction zone]: distance: ~90km
   North America / Pacific [subduction zone]: distance: ~400km
   Okhotsk / North America [subduction zone]: distance: ~400km
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:
       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)
./hypo.1754247401020.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 177°   dip: 78°   rake: -176°
Nodal Plane 2: strike: 86°   dip: 86°   rake: -12°
Quality: azimuthalGap: -1°   stationPolarityCount: 29   misfitWeightCount: 6.5   misfit: 0.13   stationDistributionRatio: 0.46   meanDistP: 52.6   meanDistT: 53.9   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1754247401020.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.1754247401020.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 176°   dip: 63°   rake: -172°
Nodal Plane 2: strike: 82°   dip: 83°   rake: -28°
Quality: azimuthalGap: 108°   stationPolarityCount: 29   misfit: 0.33   stationDistributionRatio: 0.73   rmsAngDiffAccPref: 37.63   fracAcc30degPref: 0.68   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1754247401020.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1754247401020
Event info last updated: 2025.08.03-19:55:02 UTC
Event first association/location: 2025.08.03-19:08:01 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA