<?xml version="1.0" encoding="UTF-8"?>
<seiscomp xmlns="http://geofon.gfz.de/ns/seiscomp-schema/0.14" version="0.14"><EventParameters><origin publicID="Origin/20260826193456.861407.306509"><time><value>2026-08-26T19:21:42.517335Z</value><uncertainty>0.14719848334789276</uncertainty></time><latitude><value>38.040611267089844</value><uncertainty>3.4956979751586914</uncertainty></latitude><longitude><value>143.88314819335938</value><uncertainty>2.42671537399292</uncertainty></longitude><depth><value>10</value><uncertainty>0</uncertainty></depth><methodID>LOCSAT</methodID><earthModelID>iasp91</earthModelID><quality><associatedPhaseCount>85</associatedPhaseCount><usedPhaseCount>80</usedPhaseCount><associatedStationCount>85</associatedStationCount><usedStationCount>80</usedStationCount><standardError>0.9172101539713798</standardError><azimuthalGap>131.02555465698242</azimuthalGap><maximumDistance>86.12565612792969</maximumDistance><minimumDistance>3.507176399230957</minimumDistance><medianDistance>69.16146469116211</medianDistance></quality><evaluationMode>automatic</evaluationMode><evaluationStatus>confirmed</evaluationStatus><creationInfo><agencyID>gempa</agencyID><creationTime>2026-08-26T19:34:56.861545Z</creationTime><modificationTime>2026-08-26T19:34:56.888913Z</modificationTime></creationInfo><comment><text>0.75</text><id>mismatchScore</id><creationInfo><creationTime>2026-08-26T19:34:56.8889Z</creationTime><modificationTime>2026-08-26T19:34:56.888918Z</modificationTime></creationInfo></comment><comment><text>extendedGap</text><id>scevalMethod</id><creationInfo><creationTime>2026-08-26T19:34:56.888908Z</creationTime></creationInfo></comment><magnitude publicID="Origin/20260826193456.861407.306509/netMag/M"><magnitude><value>5.529693999879694</value></magnitude><type>M</type><methodID>weighted average</methodID><stationCount>59</stationCount><creationInfo><agencyID>gempa</agencyID><creationTime>2026-08-26T19:34:57.128478Z</creationTime><modificationTime>2026-08-26T19:35:28.648177Z</modificationTime></creationInfo></magnitude></origin><origin publicID="Origin/20260826193257.505461.369944"><time><value>2026-08-26T19:21:42.419827Z</value></time><latitude><value>37.99777603149414</value></latitude><longitude><value>143.9267120361328</value></longitude><depth><value>11</value></depth><depthType>from moment tensor inversion</depthType><methodID>FocalMechanism</methodID><earthModelID>qseis_ak135f_continental</earthModelID><quality><usedPhaseCount>13</usedPhaseCount><associatedStationCount>8</associatedStationCount><usedStationCount>7</usedStationCount><azimuthalGap>225.79309891721755</azimuthalGap><maximumDistance>10.969736205944203</maximumDistance><minimumDistance>3.5620520699202904</minimumDistance></quality><type>hypocenter</type><creationInfo><agencyID>gempa</agencyID><creationTime>2026-08-26T19:32:57.505407Z</creationTime></creationInfo></origin><focalMechanism publicID="FocalMechanism/20260826193257.505429.369943"><triggeringOriginID>Origin/20260826193228.489735.305599</triggeringOriginID><nodalPlanes><nodalPlane1><strike><value>163.68858094312975</value></strike><dip><value>81.78154375990998</value></dip><rake><value>-164.06478585324263</value></rake></nodalPlane1><nodalPlane2><strike><value>71.35136578138261</value></strike><dip><value>74.23272105951087</value></dip><rake><value>-8.542135464509117</value></rake></nodalPlane2></nodalPlanes><principalAxes><tAxis><azimuth><value>296.7491767479625</value></azimuth><plunge><value>5.224780101410129</value></plunge><length><value>3.0395945012950758e+17</value></length></tAxis><pAxis><azimuth><value>28.356301198207795</value></azimuth><plunge><value>17.050947702526326</value></plunge><length><value>-2.2592105402233248e+17</value></length></pAxis><nAxis><azimuth><value>190.2835985113914</value></azimuth><plunge><value>72.11925217135607</value></plunge><length><value>-78038396107175120</value></length></nAxis></principalAxes><azimuthalGap>225.79309891721755</azimuthalGap><misfit>0.07524240811649507</misfit><evaluationMode>automatic</evaluationMode><creationInfo><agencyID>gempa</agencyID><creationTime>2026-08-26T19:32:57.505407Z</creationTime></creationInfo><momentTensor publicID="MomentTensor/20260826193257.505484.369946"><derivedOriginID>Origin/20260826193257.505461.369944</derivedOriginID><momentMagnitudeID>Magnitude/20260826193257.505473.369945</momentMagnitudeID><scalarMoment><value>2.7342426852839398e+17</value></scalarMoment><tensor><Mrr><value>-87585489282307152</value></Mrr><Mtt><value>-1.0597271346042614e+17</value></Mtt><Mpp><value>1.9355820274273331e+17</value></Mpp><Mrt><value>-20890489685029228</value></Mrt><Mrp><value>50624164090717464</value></Mrp><Mtp><value>2.0875465547175526e+17</value></Mtp></tensor><varianceReduction>0.9247575918835049</varianceReduction><doubleCouple>0.4865210074967209</doubleCouple><clvd>0.5134789925032791</clvd><greensFunctionID>sc3gf1d:/qseis_ak135f_continental</greensFunctionID><filterID>BP 40s-100s</filterID><creationInfo><agencyID>gempa</agencyID><creationTime>2026-08-26T19:32:57.505407Z</creationTime></creationInfo><dataUsed><waveType>body waves</waveType><stationCount>7</stationCount><componentCount>7</componentCount></dataUsed><dataUsed><waveType>surface waves</waveType><stationCount>6</stationCount><componentCount>6</componentCount></dataUsed></momentTensor></focalMechanism><event publicID="rs2026qxfxyo"><preferredOriginID>Origin/20260826193456.861407.306509</preferredOriginID><preferredMagnitudeID>Origin/20260826193456.861407.306509/netMag/M</preferredMagnitudeID><preferredFocalMechanismID>FocalMechanism/20260826193257.505429.369943</preferredFocalMechanismID><creationInfo><agencyID>gempa</agencyID><creationTime>2026-08-26T19:31:27.528049Z</creationTime><modificationTime>2026-08-26T19:34:57.530559Z</modificationTime></creationInfo><description><text>Off East Coast of Honshu, Japan</text><type>region name</type></description><originReference>Origin/20260826193456.861407.306509</originReference><focalMechanismReference>FocalMechanism/20260826193257.505429.369943</focalMechanismReference></event></EventParameters></seiscomp>
