<?xml version="1.0" encoding="UTF-8"?>
<MomentTensor active="Y" id="23411987">
   <ProductDescription>Moment Tensor</ProductDescription>
   <Description>Moment Tensor for MW 4.8 (GCMT)  TONGA ISLANDS</Description>
   <SubType>CMT</SubType>
   <ProductId>202505172056A</ProductId>
   <DOI></DOI>
   <Link>http://dmc.iris.washington.edu/spudservice/momenttensor/23411987</Link>
   <LocationTime id="23411983"/>
   <Event>
      <Time>2025-05-17T20:56:25</Time>
      <Latitude>-17.7</Latitude>
      <Longitude>-174.06</Longitude>
      <Depth>157.9</Depth>
      <Magnitude>4.8</Magnitude>
      <MagnitudeType>MW</MagnitudeType>
      <Region>TONGA ISLANDS</Region>
      <Author>Global CMT Project</Author>
      <Contributor>GCMT</Contributor>
      <Catalog>GCMT</Catalog>
      <ForeignId>11971671</ForeignId>
   </Event>
   <Provenance>
      <CreateTime>2025-09-15T20:04:52</CreateTime>
      <Creator>
         <Email>gcmt@ldeo.columbia.edu</Email>
         <Org>Global CMT Project</Org>
         <OrgLogoUrl>http://www.globalcmt.org/icons2/CMTdata.gif</OrgLogoUrl>
         <OrgUrl>http://www.globalcmt.org</OrgUrl>
      </Creator>
      <SubmitTime>2025-09-30T16:38:14</SubmitTime>
      <Submitter>
         <Name>IRIS DMC</Name>
         <Org>IRIS DMC</Org>
         <OrgLogoUrl>http://ds.iris.edu/images/logo/irislogo_50x40.gif</OrgLogoUrl>
         <OrgUrl>http://ds.iris.edu</OrgUrl>
      </Submitter>
   </Provenance>
   <PrimaryData id="23411985">
      <Link>http://dmc.iris.washington.edu/spudservice/momenttensor/23411987/primarydata/23411985</Link>
      <Filename>focalmechanism.png</Filename>
      <MimeType>image/png</MimeType>
      <Size>1579</Size>
      <GroupKey>1</GroupKey>
      <OrderKey>0</OrderKey>
      <DataLink>http://dmc.iris.washington.edu/spudservice/data/23411985</DataLink>
   </PrimaryData>
   <SourceData id="23411986">
      <Link>http://dmc.iris.washington.edu/spudservice/momenttensor/23411987/sourcedata/23411986</Link>
      <Filename>C202505172056A.ndk</Filename>
      <MimeType>text/plain</MimeType>
      <Size>405</Size>
      <DataLink>http://dmc.iris.washington.edu/spudservice/data/23411986</DataLink>
   </SourceData>
   <DataInputs>
      <BodyWave>
         <ComponentCount>7</ComponentCount>
         <ShortestPeriod>40</ShortestPeriod>
         <StationCount>6</StationCount>
      </BodyWave>
      <MantleWave>
         <ComponentCount>0</ComponentCount>
         <ShortestPeriod>0</ShortestPeriod>
         <StationCount>0</StationCount>
      </MantleWave>
      <SurfaceWave>
         <ComponentCount>95</ComponentCount>
         <ShortestPeriod>50</ShortestPeriod>
         <StationCount>83</StationCount>
      </SurfaceWave>
   </DataInputs>
   <MomentTensor Exponent="23">
      <Centroid>
         <Depth stderr="6.8">157.9</Depth>
         <Latitude stderr="0.04">-17.7</Latitude>
         <Longitude stderr="0.03">-174.06</Longitude>
         <RefTimeOffset stderr="0.4">6.4</RefTimeOffset>
      </Centroid>
      <PrincipalAxes>
         <Eigen0>
            <Value>2.018</Value>
            <Azimuth>126</Azimuth>
            <Plunge>45</Plunge>
         </Eigen0>
         <Eigen1>
            <Value>0.492</Value>
            <Azimuth>20</Azimuth>
            <Plunge>16</Plunge>
         </Eigen1>
         <Eigen2>
            <Value>-2.51</Value>
            <Azimuth>276</Azimuth>
            <Plunge>41</Plunge>
         </Eigen2>
      </PrincipalAxes>
      <Tensor>
         <Mpp stderr="0.204">-0.724</Mpp>
         <Mrp stderr="0.117">-2.09</Mrp>
         <Mrr stderr="0.147">-0.019</Mrr>
         <Mrt stderr="0.111">-0.602</Mrt>
         <Mtp stderr="0.165">0.192</Mtp>
         <Mtt stderr="0.232">0.743</Mtt>
      </Tensor>
      <NodalPlane>
         <NP1>
            <Dip>16</Dip>
            <Rake>8</Rake>
            <Strike>298</Strike>
         </NP1>
         <NP2>
            <Dip>88</Dip>
            <Rake>106</Rake>
            <Strike>201</Strike>
         </NP2>
      </NodalPlane>
   </MomentTensor>
   <Centroid>
      <DepthType>FREE</DepthType>
      <Timestamp>S-20250915200452</Timestamp>
   </Centroid>
   <EventName>C202505172056A</EventName>
   <MomentRate>
      <FunctionType>TRIHD</FunctionType>
      <HalfDuration>0.6</HalfDuration>
   </MomentRate>
   <ReferenceEvent>
      <Depth>86.8</Depth>
      <Latitude>-17.55</Latitude>
      <Longitude>-174.38</Longitude>
      <MagnitudeMb>0.0</MagnitudeMb>
      <MagnitudeMs>4.7</MagnitudeMs>
      <Region>TONGA ISLANDS</Region>
      <Time>2025-05-17T20:56:18</Time>
   </ReferenceEvent>
   <ReferenceCatalog>PDEW</ReferenceCatalog>
   <ScalarMoment>2.264</ScalarMoment>
   <Sourcetype>1</Sourcetype>
   <Versioning>V10</Versioning>
</MomentTensor>