Science Advances

This PDF file includes:

• fig. S1. MODIS Terra and Aqua satellite images of the region around Havre volcano collected between 18 and 19 July 2012 (UTC).
  
• fig. S2.1. AUV high-resolution bathymetry of Havre submarine volcano.
  
• fig. S2.2. Dive tracks for the AUV Sentry.
  
• fig. S2.3. ROV track lines.
  
• fig. S3. Detailed views of seafloor roughness.
  
• fig. S4. Clast density distributions from Havre and other Kermadec volcanoes.
  
• fig. S5. GP size with distance.
  
• fig. S6. Clast textures from seafloor GP and raft pumice.
  
• Legend for movie S1
  
• table S1A. X-ray fluorescence geochemical data of 2012 products.
  
• table S1B. X-ray fluorescence geochemical precision and accuracy data.
  
• table S2. Table of Havre lava volumes.
  
• table S3. Phenocryst assemblages and microlite populations of the GP and raft pumice from petrographic analysis.
  
• References (35–37)

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Other Supplementary Material for this manuscript includes the following:

• movie S1 (.mov format). GP retrieval from the seafloor.