Mount Dempo
mountain in South Sumatra, Indonesia
Mount Dempo is the highest stratovolcano in South Sumatra province that rises above Pasumah Plain near Pagar Alam and adjacent with Bengkulu Province. Seven craters are found around the summit. A 400-metre (1,300 ft) wide lake is found at the north-west end of the crater complex.
Historical activity has been confined to being small-to-moderate explosive activity that produced ashfall near the volcano.
Recent activity includes:
A phreatic eruption on January 1, 2009.
July 19, 2023 Steam and ash plume rose 1.3 km above the summit.
August 21, 2023 at 1:54 AM (GMT+7), a small phreatic explosion occurred causing small pyroclastic flows to ride down the northwest slope a few hundred meters downward, resulting to no injuries nor any damage to the surrounding landscape other than the volcano itself, lasting no more than 239s/3m59s.
April 7, 2026 01:37 A phreatic eruption lasted nearly three minutes.
The Royal Rotterdam Lloyd Dutch shipping company named and operated a fine passenger liner named 'Dempo' from 1931 to 1944 between Europe and South Asia.
“Mount Dempo” enters the record as mountain in South Sumatra, Indonesia. Crown Archives preserves that source wording while asking what Mount, Dempo and mountain can confirm, complicate or overturn.
Why this record matters
“Mount Dempo” is worth following because a concise public description often conceals a longer documentary argument. Here, Mount, Dempo and mountain provides the most credible route into that argument.
Place names and jurisdictional language are key evidence: both can reveal earlier catalogue descriptions and overlooked record series. The source revision retrieved here is dated Aug 15, 2026. The linked authority identifier is Q1186618. Authority coordinates are -4.030, 103.130. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 2009, 2023, 2026 and 1931.
Modern boundaries and familiar names can conceal earlier jurisdictions or structures that do not align with the present site. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
How to read it
Treat names, boundaries and functions as historically changeable. Maps, plans, inventories and administrative records can clarify what the place meant at different dates.
- Historic place names
- Jurisdictional context
- Routes into maps and plans
Contemporary maps, plans, listed-building records, estate papers and the responsible local or national archive.
Three-step research path
- Establish the record: confirm the title “Mount Dempo”, its source revision and the description used here.
- Expand the search: follow Mount Dempo primary sources, Mount Dempo archive and Mount research across catalogues and specialist indexes.
- Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.
Questions for further research
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Search terms from this dossier
This entry incorporates text from “Mount Dempo” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.