Early-est:     Off East Coast of Kamchatka    2025.08.01-10:12:57.69    q:C      mb:4.6*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1754043168657.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1754043168657.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1754043168657.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* [28]    Mwp: - [0]    Mwpd: - [0]
Region: Off East Coast of Kamchatka
Origin Time: 2025.08.01-10:12:57.69 UTC
Hypocenter: lat: 52.61°  lon: 160.64°  [+/-28km]    depth: 112km  [+/-68km]
Location Quality: qualityCode:  C     stdErr: 1.9s   assocPhases: 62   usedPhases: 32
minDist: 15.7°   maxDist: 159.6°   AzGap: 94°   2ndAzGap: 113°   atten: -1.41 [+/-0.43]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 20km   maxHorUnc: 28km   azMaxHorUnc: 172°
68%ConfEllipsoid:   semiMajorAxisLength: 69km   majorAxisAzimuth: 60°   majorAxisPlunge: 80°   semiIntermediateAxisLength: 34km   intermediateAxisAzimuth: 168°   intermediateAxisPlunge: 3°   semiMinorAxisLength: 23km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.5 [14]    Td: -s [0]    Td*T50Ex: - [0]    To: 4.0s [12]
Closest plate boundaries:
   Okhotsk / Pacific [subduction zone]: distance: ~50km
   North America / Pacific [subduction zone]: distance: ~370km
   Okhotsk / North America [subduction zone]: distance: ~370km
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 (50km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       112km
       112km
       112km
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.1754043168657.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 346°   dip: 64°   rake: 178°
Nodal Plane 2: strike: 77°   dip: 89°   rake: 26°
Quality: azimuthalGap: -1°   stationPolarityCount: 28   misfitWeightCount: 7.1   misfit: 0.13   stationDistributionRatio: 0.41   meanDistP: 50.5   meanDistT: 50.4   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1754043168657.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.1754043168657.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 33°   dip: 46°   rake: -155°
Nodal Plane 2: strike: 285°   dip: 72°   rake: -47°
Quality: azimuthalGap: 124°   stationPolarityCount: 28   misfit: 0.29   stationDistributionRatio: 0.73   rmsAngDiffAccPref: 27.50   fracAcc30degPref: 0.68   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1754043168657.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1754043168657
Event info last updated: 2025.08.01-11:11:02 UTC
Event first association/location: 2025.08.01-10:24:02 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA