Early-est:     Off East Coast of Kamchatka    2025.08.01-12:02:25.62    q:B      mb:5.3*    Mwp:6.0    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1754049745706.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1754049745706.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1754049745706.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: 5.3* [56]    Mwp: 6.0 [4]    Mwpd: 6.3Xinv [3]
Region: Off East Coast of Kamchatka
Origin Time: 2025.08.01-12:02:25.62 UTC
Hypocenter: lat: 52.95°  lon: 159.03°  [+/-12km]    depth: 71km  [+/-16km]
Location Quality: qualityCode:  B     stdErr: 1.5s   assocPhases: 101   usedPhases: 59
minDist: 0.2°   maxDist: 86.4°   AzGap: 139°   2ndAzGap: 148°   atten: -1.02 [+/-0.29]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 10km   maxHorUnc: 12km   azMaxHorUnc: 169°
68%ConfEllipsoid:   semiMajorAxisLength: 17km   majorAxisAzimuth: 163°   majorAxisPlunge: 48°   semiIntermediateAxisLength: 14km   intermediateAxisAzimuth: 358°   intermediateAxisPlunge: 41°   semiMinorAxisLength: 12km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.4 [52]    Td: -s [0]    Td*T50Ex: - [0]    To: 18.5s [49]
Closest plate boundaries:
   Okhotsk / Pacific [subduction zone]: distance: ~160km
   North America / Pacific [subduction zone]: distance: ~410km
   Okhotsk / North America [subduction zone]: distance: ~410km
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 (160km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       6.0
       6.0
       6.0
Hypocenter depth:
       71km
       71km
       71km
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.1754049745706.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: VERY UNRELIABLE SOLUTION, qualityCode=D)
Nodal Plane 1: strike: 103°   dip: 40°   rake: 81°
Nodal Plane 2: strike: 295°   dip: 50°   rake: 98°
Quality: azimuthalGap: -1°   stationPolarityCount: 61   misfitWeightCount: 10.4   misfit: 0.20   stationDistributionRatio: 0.47   meanDistP: 46.5   meanDistT: 47.9   qualityCode: D
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1754049745706.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.1754049745706.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 148°   dip: 79°   rake: 134°
Nodal Plane 2: strike: 249°   dip: 45°   rake: 16°
Quality: azimuthalGap: 87°   stationPolarityCount: 61   misfit: 0.42   stationDistributionRatio: 0.79   rmsAngDiffAccPref: 34.53   fracAcc30degPref: 0.66   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1754049745706.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1754049745706
Event info last updated: 2025.08.01-13:01:01 UTC
Event first association/location: 2025.08.01-12:11:03 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA