Early-est:     Near East Coast of Kamchatka    2025.08.02-03:42:28.19    q:B      mb:4.4*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1754106147596.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1754106147596.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1754106147596.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: 4.4* [16]    Mwp: - [0]    Mwpd: - [0]
Region: Near East Coast of Kamchatka
Origin Time: 2025.08.02-03:42:28.19 UTC
Hypocenter: lat: 51.15°  lon: 158.05°  [+/-15km]    depth: 87km  [+/-36km]
Location Quality: qualityCode:  B     stdErr: 0.8s   assocPhases: 49   usedPhases: 12
minDist: 1.9°   maxDist: 145.3°   AzGap: 140°   2ndAzGap: 164°   atten: -1.01 [+/-1.33]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 11km   maxHorUnc: 15km   azMaxHorUnc: 106°
68%ConfEllipsoid:   semiMajorAxisLength: 37km   majorAxisAzimuth: 93°   majorAxisPlunge: 73°   semiIntermediateAxisLength: 16km   intermediateAxisAzimuth: 310°   intermediateAxisPlunge: 13°   semiMinorAxisLength: 13km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.4 [6]    Td: -s [0]    Td*T50Ex: - [0]    To: 2.1s [6]
Closest plate boundaries:
   Okhotsk / Pacific [subduction zone]: distance: ~130km
   North America / Pacific [subduction zone]: distance: ~600km
   Okhotsk / North America [subduction zone]: distance: ~600km
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 (130km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       87km
       87km
       87km
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.1754106147596.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 162°   dip: 55°   rake: -175°
Nodal Plane 2: strike: 69°   dip: 86°   rake: -35°
Quality: azimuthalGap: -1°   stationPolarityCount: 15   misfitWeightCount: 6.7   misfit: 0.00   stationDistributionRatio: 0.44   meanDistP: 50.4   meanDistT: 41.0   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1754106147596.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.1754106147596.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 162°   dip: 61°   rake: -178°
Nodal Plane 2: strike: 71°   dip: 88°   rake: -29°
Quality: azimuthalGap: 123°   stationPolarityCount: 15   misfit: 0.18   stationDistributionRatio: 0.72   rmsAngDiffAccPref: 31.45   fracAcc30degPref: 0.73   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1754106147596.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1754106147596
Event info last updated: 2025.08.02-04:41:00 UTC
Event first association/location: 2025.08.02-03:49:02 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA