Early-est:     Off East Coast of Kamchatka    2025.08.03-20:21:54.04    q:C      mb:4.6*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1754252513762.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1754252513762.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1754252513762.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: 4.6* [8]    Mwp: - [0]    Mwpd: - [0]
Region: Off East Coast of Kamchatka
Origin Time: 2025.08.03-20:21:54.04 UTC
Hypocenter: lat: 52.80°  lon: 159.58°  [+/-14km]    depth: 61km  [+/-13km]
Location Quality: qualityCode:  C     stdErr: 1.1s   assocPhases: 54   usedPhases: 9
minDist: 0.6°   maxDist: 170.4°   AzGap: 108°   2ndAzGap: 153°   atten: -1.58 [+/-0.61]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 10km   maxHorUnc: 14km   azMaxHorUnc: 99°
68%ConfEllipsoid:   semiMajorAxisLength: 18km   majorAxisAzimuth: 278°   majorAxisPlunge: 8°   semiIntermediateAxisLength: 14km   intermediateAxisAzimuth: 176°   intermediateAxisPlunge: 56°   semiMinorAxisLength: 11km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.4 [5]    Td: -s [0]    Td*T50Ex: - [0]    To: 14.8Xs [3]
Closest plate boundaries:
   Okhotsk / Pacific [subduction zone]: distance: ~120km
   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 (120km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       61km
       61km
       61km
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.1754252513762.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 170°   dip: 23°   rake: 57°
Nodal Plane 2: strike: 25°   dip: 71°   rake: 103°
Quality: azimuthalGap: -1°   stationPolarityCount: 10   misfitWeightCount: 5.9   misfit: 0.01   stationDistributionRatio: 0.56   meanDistP: 40.4   meanDistT: 47.5   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1754252513762.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.1754252513762.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 252°   dip: 81°   rake: 165°
Nodal Plane 2: strike: 344°   dip: 75°   rake: 9°
Quality: azimuthalGap: 101°   stationPolarityCount: 10   misfit: 0.16   stationDistributionRatio: 0.71   rmsAngDiffAccPref: 38.16   fracAcc30degPref: 0.56   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1754252513762.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1754252513762
Event info last updated: 2025.08.03-21:20:02 UTC
Event first association/location: 2025.08.03-20:33:02 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA