Editing Hokkaido (section)

=== Geologic activity ===
{{See also|Category:Volcanoes of Hokkaido}}

Like many areas of Japan, Hokkaidō is [[seismology|seismically]] active. Aside from numerous [[earthquake]]s, the following volcanoes are considered still active (at least one eruption since 1850):

* [[Hokkaido Koma-ga-take]]
* [[Mount Meakan]]
* [[Mount Tarumae]]
* [[Mount Tokachi (Daisetsuzan)|Mount Tokachi]]
* [[Mount Usu]] and [[Shōwa-shinzan]]

In [[1993 Okushiri earthquake|1993, an earthquake]] of [[Moment magnitude scale|magnitude 7.7]] generated a [[tsunami]] which devastated [[Okushiri, Hokkaido|Okushiri]], killing 202 inhabitants. An [[2003 Tokachi earthquake|earthquake of magnitude 8.3]] struck near the island on September 26, 2003. On September 6, 2018, an [[2018 Hokkaido Eastern Iburi earthquake|earthquake of magnitude 6.6]] struck with its epicenter near the city of [[Tomakomai]], causing a blackout across the whole island.<ref name="USGS">{{cite web |title=M 6.6 - 27km E of Tomakomai, Japan |url=https://earthquake.usgs.gov/earthquakes/eventpage/us2000h8ty#executive |publisher=[[United States Geological Survey]] |access-date=6 September 2018 |archive-date=6 September 2018 |archive-url=https://web.archive.org/web/20180906015303/https://earthquake.usgs.gov/earthquakes/eventpage/us2000h8ty#executive |url-status=live }}</ref>

On May 16, 2021, an earthquake measuring 6.1 on the Richter scale struck off Japan's Hokkaidō prefecture.<ref>{{cite web|date=2021-05-16|title=Earthquake ALERT! 6.1-magnitude quake strikes this country|url=https://www.zeebiz.com/world/news-earthquake-alert-61-magnitude-quake-strikes-this-country-156754|access-date=2021-05-16|website=Zee Business|archive-date=2021-05-16|archive-url=https://web.archive.org/web/20210516133541/https://www.zeebiz.com/world/news-earthquake-alert-61-magnitude-quake-strikes-this-country-156754|url-status=live}}</ref>