volcano.si.edu

Global Volcanology Program: et vindue ind i Jordens brændende historie

Forestil dig en verden, hvor bjerge ånder ild og aske. Vulkan hjemmeside. si. edu er præcis det sted, hvor alle data om sådanne begivenheder er indsamlet. Det er et Smithsonian-projekt kaldet Global Volcanology Program eller GVP. Det, de gør, er at dokumentere udbrud over de sidste tolv tusinde år. Ikke kun store katastrofer, men også små. Hvorfor er dette vigtigt? For for at forstå fremtiden skal du kende fortiden.

Programmets fokus er hurtig overførsel af information. Når et udbrud opstår et sted, rapporterer lokale observatører det, og en måned senere offentliggøres en bulletin. Men der er også et tilbageblik. De indsamler historiske optegnelser og geologiske data. Alt dette tilsammen hjælper os med at forberede os på, hvad der kan ske i morgen. The Volcanoes of the World-databasen indeholder et katalog over alle aktive bjerge i 12.000 år.

Hvad er der inde i databasen?

Der er lister over vulkaner, der brød ud i 2025. Du kan finde rapporter om den aktuelle aktivitet. Der er daglige og ugentlige oversigter. For eksempel var der for nylig en rapport om en ny sprække i sydvest med lava i juni 2024. Eller om lavasøens stærke aktivitet fra oktober 2023 til maj 2024. Askefaner, termiske anomalier, alt dette er registreret. Selv små eksplosioner som den 18. december 2023 går ikke ubemærket hen.

Interessant nok er der nu omkring 40-50 igangværende udbrud på samme tid. I alt har der i løbet af de sidste 12 tusind år været omkring 1222 aktive vulkaner. Der er 693 af dem i verden, der tilhører holocæn, hvilket er 57 procent af det samlede antal. De er spredt ud over 41 forskellige regioner. De mest aktive lande er USA Japan Indonesien Rusland Chile. Nogle gange spørger folk, hvor mange mennesker der bor i nærheden af ​​farlige bjerge? Ti vulkaner har mere end en million mennesker inden for en radius på fem kilometer.

Nogle bjerge brænder i meget lang tid. Der er 106 udbrud, der varede fem år eller mere. Og Yasur-vulkanen i Vanuatu kan have været i udbrud i mere end 750 år! Det her er simpelthen utroligt. Databasen opdateres løbende. I december 2025 blev version 5. 3. 4 frigivet. Også i august lancerede de et nyt projekt sammen med USGS, der giver korte daglige rapporter fra mandag til fredag.

• name: Description content: The Global Volcanism Program (GVP) seeks better understanding of all volcanoes through documenting their eruptions--small as well as large--during the past 12,000 years. The range of volcanic behavior is great enough, and volcano lifetimes are long enough, that we must integrate observations of contemporary activity with historical and geological records of the recent past in order to prepare wisely for the future. The contemporary focus of the GVP is evident in the central role we play in the rapid dissemination of on-going eruption reports from local observers through our monthly Bulletin of the Global Volcanism Network. Our retrospective effort to document Earth's volcanic eruptions of the last 12,000 years has led to development of comprehensive databases and an archive of relevant maps, photos, and documents. Through these two complementary approaches we attempt to provide a context in which any individual volcano's benefits and dangers can be usefully assessed.
• name: Author content: Smithsonian Institution
• name: Keywords content: gvp, volcano, volcanoes, volcanology, volcanism, eruption, eruptive, erupting, Holocene
• name: DC.Title content: Global Volcanism Program
• name: DC.Title.Alternative content: Smithsonian Institution's Global Volcanism Program
• name: DC.Format.MIME content: text/html
• name: DC.Contributor.CorporateName content: Smithsonian Institution. Global Volcanism Program.
• name: DC.Publisher content: Global Volcanism Program, National Museum of Natural History, MRC 119, Smithsonian Institution,
• name: DC.Publisher.Place content: Washington, DC:
• name: DC.Date.Issued content: 1996-
• name: DC.Description content: The Global Volcanism Program (GVP) seeks better understanding of all volcanoes through documenting their eruptions during the past 12,000 years.
• name: DC.Description.Summary content: This site is the homepage for the Global Volcanism Program at the Smithsonian Institution. It provides current volcanic activity notices, reports published by the Smithsonian since 1968, and basic data about over 1,200 Holocene volcanoes.
• name: DC.Description.Contents content: Volcanic Activity Reports -- Volcanoes of the World
• name: DC.Identifier.URL content: https://volcano.si.edu/
• name: DC.Language content: english
• name: DC.Subject scheme: LCC Local content: QE522
• name: DC.Subject scheme: CorporateName content: Smithsonian Institution. Global Volcanism Program.
• name: DC.Subject scheme: LCSH content: Volcanoes - Electronic information resources.
• name: DC.Subject scheme: LCSH content: Paleogeography - Holocene - Electronic information resources.
• name: DC.Subject scheme: Keyword content: volcano, volcanoes, volcanology, volcanism, eruption, eruptive, erupting, Holocene
• name: DC.Relation.Requires content: Mode of access: World Wide Web. Host: volcano.si.edu/
• property: og:site_name content: Smithsonian Institution | Global Volcanism Program
• property: og:title content: Global Volcanism Program
• property: og:url content: https://volcano.si.edu/
• property: og:description content: The Global Volcanism Program (GVP) seeks better understanding of all volcanoes through documenting their eruptions during the past 12,000 years.
• property: og:type content: website
• property: og:image content: https://volcano.si.edu/includes/images/GVP_LogoBanner.jpg
• property: og:image:secure_url content: https://volcano.si.edu/includes/images/GVP_LogoBanner.jpg
• property: og:image:type content: image/jpeg
• property: og:image:alt content: Smithsonian GVP Logo
• name: twitter:site content: @SmithsonianGVP
• name: twitter:card content: summary_large_image

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