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latestOpenAPI 3.0.2mostly Open Government Licence, please see individual collections.2026-07-2338041.4 MBGet Eruption source parameter database schema
The eruption source parameter database contains information on those parameters most frequently used in the initiation of ash-dispersion models. The database was originally published as a special USGS report in 2009 [Mastin et al., 2009a], and has since been converted to a searchable database.
Query parameters
The optional f parameter indicates the output format which the server shall provide as part of the response document. The default format is GeoJSON.
The optional lang parameter instructs the server return a response in a certain language, if supported. If the language is not among the available values, the Accept-Language header language will be used if it is supported. If the header is missing, the default server language is used. Note that providers may only support a single language (or often no language at all), that can be different from the server language. Language strings can be written in a complex (e.g. "fr-CA,fr;q=0.9,en-US;q=0.8,en;q=0.7"), simple (e.g. "de") or locale-like (e.g. "de-CH" or "fr_BE") fashion.
Response
successful queryables operation