Early-est:     Near East Coast of Kamchatka    2026.02.06-09:45:54.59    q:B      mb:4.7*    Mwp:-    Mwpd:-    Td*T50Ex:-     fmamp_polarity:./hypo.1770371155662.mech.fmamp_polarity.thumb.jpg     fmamp_polarity_waveform:./hypo.1770371155662.mech.fmamp_polarity_waveform.thumb.jpg     hash:./hypo.1770371155662.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: 4.7* [21]    Mwp: 4.3X [1]    Mwpd: - [0]
Region: Near East Coast of Kamchatka
Origin Time: 2026.02.06-09:45:54.59 UTC
Hypocenter: lat: 51.83°  lon: 158.47°  [+/-12km]    depth: 49km  [+/-22km]
Location Quality: qualityCode:  B     stdErr: 1.3s   assocPhases: 39   usedPhases: 28
minDist: 1.2°   maxDist: 145.1°   AzGap: 116°   2ndAzGap: 140°   atten: -1.24 [+/-0.58]
Location Uncertainty: 68%ConfEllipse:   minHorUnc: 12km   maxHorUnc: 12km   azMaxHorUnc: 87°
68%ConfEllipsoid:   semiMajorAxisLength: 22km   majorAxisAzimuth: 107°   majorAxisPlunge: 78°   semiIntermediateAxisLength: 15km   intermediateAxisAzimuth: 234°   intermediateAxisPlunge: 7°   semiMinorAxisLength: 15km
Tsunamigeneic Assesment:
Discriminants: Prob Underwater: >99%
T50Ex: 0.0 [11]    Td: -s [0]    Td*T50Ex: - [0]    To: 1.1s [10]
Closest plate boundaries:
   Okhotsk / Pacific [subduction zone]: distance: ~150km
   North America / Pacific [subduction zone]: distance: ~530km
   Okhotsk / North America [subduction zone]: distance: ~530km
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 (150km)
 no
 no
Prob underwater:
 >99%
 >99%
 >99%
Td*T50Ex:
   -
   -
   -
Td*To:
     -
     -
     -
Mwp magnitude:
       -
       -
       -
Hypocenter depth:
       49km
       49km
       49km
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.1770371155662.map.jpg

First-motion Focal Mechanism (FMAMP_POLARITY):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 156°   dip: 30°   rake: -173°
Nodal Plane 2: strike: 60°   dip: 87°   rake: -60°
Quality: azimuthalGap: -1°   stationPolarityCount: 22   misfitWeightCount: 5.9   misfit: 0.03   stationDistributionRatio: 0.50   meanDistP: 33.9   meanDistT: 49.6   qualityCode: C
Method: methodID: smi:net.alomax/focalmec/fmamp_0.0.5X_2016.06.14/_polarity
./hypo.1770371155662.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.1770371155662.mech.fmamp_polarity_waveform.mechanism.jpg
First-motion Focal Mechanism (HASH):    (Warning: Unreliable solution, qualityCode=C)
Nodal Plane 1: strike: 107°   dip: 74°   rake: -106°
Nodal Plane 2: strike: 332°   dip: 23°   rake: -47°
Quality: azimuthalGap: 117°   stationPolarityCount: 22   misfit: 0.11   stationDistributionRatio: 0.75   rmsAngDiffAccPref: 40.12   fracAcc30degPref: 0.44   qualityCode: C
Method: methodID: smi:gov.usgs/focalmec/HASH_1.2
./hypo.1770371155662.mech.hash.mechanism.jpg

Event ID: smi:alomax.net_BETA/author/ee/event/1770371155662
Event info last updated: 2026.02.06-10:44:01 UTC
Event first association/location: 2026.02.06-09:57:00 UTC
Software: Early-est 1.2.10 (2024.02.23)
Agency: alomax.net_BETA