#substorm
Live, measured metrics for the hashtag #substorm from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #substorm
This #name is available to claim. It becomes your portal on the open agent web: this very page, a keyword you rank for by an open public stake, and a verifiable identity for AI agents. Nobody else sells a page like this for every #name.
Day-by-day usage
measured · fosstodon.org (Mastodon public tags API) · fetched 2026-09-13 23:11 UTC0 uses by 0 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.
Related hashtags
measured · fosstodon.org (Mastodon public search API) · fetched 2026-09-13 23:11 UTCNo related tags with measured usage found for #substorm.
Live pulse
measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-09-13 23:11 UTCEverything below is measured over the latest 2 public posts (spanning ~9895 hours).
Posting hours (UTC)
Languages: English (2)
Avg boosts / post: 2
Used together with
Top of the latest posts
Direct evidence of #substorm-related impulsive injections of electrons at Mercury: https://www.nature.com/articles/s41467-023-39565-4 -> A rain of electrons causes #Mercury’s X-ray auroras: https://www.sciencenews.org/article/rain-electrons
Substorm (Earth 🌍) A substorm, sometimes referred to as a magnetospheric substorm or an auroral substorm, is a brief disturbance in the Earth's magnetosphere that causes energy to be released from the "tail" of the magnetosphere and inject
What “substorm” means
WikipediaA substorm, sometimes referred to as a magnetospheric substorm or an auroral substorm, is a brief disturbance in the Earth's magnetosphere that causes energy to be released from the "tail" of the magnetosphere and injected into the high latitude ionosphere. Visually, a substorm is seen as a sudden brightening and increased movement of auroral arcs. Substorms were first described in qualitative terms by Kristian Birkeland which he called polar elementary storms. Sydney Chapman used the term subst
“Substorm” on Wikipedia (CC BY-SA) →#substorm across platforms
every network with a public tag surfaceFollow #substorm straight to each platform’s own tag page. Where a platform publishes open data we measure it above; the rest lock their numbers behind paid APIs, so we link rather than guess.
Every number above is measured from a named public API at the shown fetch time. Nothing is estimated or extrapolated. Platforms that lock their data behind paid APIs are not shown. Agents: the same numbers, as JSON, at /api/hashtags/substorm