Global Volcanism Program

The Global Volcanism Program has no activity reports for Lasem.

The Global Volcanism Program has no Weekly Reports available for Lasem.

The Global Volcanism Program has no Bulletin Reports available for Lasem.

The Global Volcanism Program has no synonyms or subfeatures listed for Lasem.

Basic Data

Volcano Number

Last Known Eruption

Elevation

Latitude
Longitude

263807

Pleistocene

806 m / 2644 ft

6.68°S
111.52°E

Volcano Morphology

Primary Landform
Composite

Volcano Types
Stratovolcano

Tectonic Setting

Unknown

Geological Summary

Lasem was active in the middle late Pleistocene (IAVCEI). Deposits have been dated to 1.6-1.1 Ma, and it appears to be the oldest and least potassic Quaternary volcano in the back-arc region of central Java (Leterrier et al., 1990). Products mostly consist of pyroclastic flow deposits, small lava flows, and dome extrusions. Composition is dominantly potassic calc-alkaline andesites, but there are also some basaltic andesites and dacites (Leterrier et al., 1990).

References

The following references have all been used during the compilation of data for this volcano, it is not a comprehensive bibliography.

IAVCEI, 1973-80. Post-Miocene Volcanoes of the World. IAVCEI Data Sheets, Rome: Internatl Assoc Volc Chemistry Earth's Interior.

Leterrier J, Yuwono Y S, Soeria-Atmadja R, Maury R C, 1990. Potassic volcanism in Central Java and South Sulawesi, Indonesia. Journal of Southeast Asian Earth Sciences, v. 4, no. 3, p. 171-187.

Eruptive History

The Global Volcanism Program is not aware of any Holocene eruptions from Lasem. If this volcano has had large eruptions (VEI >= 4) prior to 10,000 years ago, information might be found on the Lasem page in the LaMEVE (Large Magnitude Explosive Volcanic Eruptions) database, a part of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).

Deformation History

There is no Deformation History data available for Lasem.

Emission History

There is no Emissions History data available for Lasem.

Photo Gallery

The Global Volcanism Program has no photographs available for Lasem.

GVP Map Holdings

Maps are not currently available due to technical issues.

The maps shown below have been scanned from the GVP map archives and include the volcano on this page. Clicking on the small images will load the full 300 dpi map. Very small-scale maps (such as world maps) are not included.

Smithsonian Sample Collections Database

There are no samples for Lasem in the Smithsonian's NMNH Department of Mineral Sciences Rock and Ore collection.

External Sites

Copernicus Browser

The Copernicus Browser replaced the Sentinel Hub Playground browser in 2023, to provide access to Earth observation archives from the Copernicus Data Space Ecosystem, the main distribution platform for data from the EU Copernicus missions.

WOVOdat
   Single Volcano View
   Temporal Evolution of Unrest
   Side by Side Volcanoes

WOVOdat is a database of volcanic unrest; instrumentally and visually recorded changes in seismicity, ground deformation, gas emission, and other parameters from their normal baselines. It is sponsored by the World Organization of Volcano Observatories (WOVO) and presently hosted at the Earth Observatory of Singapore.

GVMID Data on Volcano Monitoring Infrastructure The Global Volcano Monitoring Infrastructure Database GVMID, is aimed at documenting and improving capabilities of volcano monitoring from the ground and space. GVMID should provide a snapshot and baseline view of the techniques and instrumentation that are in place at various volcanoes, which can be use by volcano observatories as reference to setup new monitoring system or improving networks at a specific volcano. These data will allow identification of what monitoring gaps exist, which can be then targeted by remote sensing infrastructure and future instrument deployments.

IRIS seismic stations/networks

Incorporated Research Institutions for Seismology (IRIS) Data Services map showing the location of seismic stations from all available networks (permanent or temporary) within a radius of 0.18° (about 20 km at mid-latitudes) from the given location of Lasem. Users can customize a variety of filters and options in the left panel. Note that if there are no stations are known the map will default to show the entire world with a "No data matched request" error notice.

UNAVCO GPS/GNSS stations

Geodetic Data Services map from UNAVCO showing the location of GPS/GNSS stations from all available networks (permanent or temporary) within a radius of 20 km from the given location of Lasem. Users can customize the data search based on station or network names, location, and time window. Requires Adobe Flash Player.

Large Eruptions of Lasem

Information about large Quaternary eruptions (VEI >= 4) is cataloged in the Large Magnitude Explosive Volcanic Eruptions (LaMEVE) database of the Volcano Global Risk Identification and Analysis Project (VOGRIPA).

EarthChem

EarthChem develops and maintains databases, software, and services that support the preservation, discovery, access and analysis of geochemical data, and facilitate their integration with the broad array of other available earth science parameters. EarthChem is operated by a joint team of disciplinary scientists, data scientists, data managers and information technology developers who are part of the NSF-funded data facility Integrated Earth Data Applications (IEDA). IEDA is a collaborative effort of EarthChem and the Marine Geoscience Data System (MGDS).