The 2021 northwestern part of Chiba Prefecture Earthquake of October 7, 2021

Uploaded on October 11, 2021


  • Event time: 2021-10-07 22:41:23.0 (JST, JMA), 2021-10-07 13:41:24.5 (UTC, USGS)
  • Location: 35.590°N, 140.103°E (JMA), 35.577°N, 140.070°E (USGS)
  • Depth: 75km (JMA), 62km (USGS)
  • Magnitude: Mj5.9 (JMA), Mww5.9 (USGS)

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The Generic Mapping Tools (GMT, Wessel and Smith, Eos, 79, 579, 1998) was used to make the figure of the epicenter, which is from JMA (https://www.data.jma.go.jp/svd/eqev/data/daily_map/20211007.html). The land topography and ocean bathymetry are from GEBCO Compilation Group (2020, GEBCO 2020 Grid, doi:10.5285/a29c5465-b138-234d-e053-6c86abc040b9).

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