Global Volcanism Program

The Global Volcanism Program has no activity reports available for Kyejo.

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

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

This compilation of synonyms and subsidiary features may not be comprehensive. Features are organized into four major categories: Cones, Craters, Domes, and Thermal Features. Synonyms of features appear indented below the primary name. In some cases additional feature type, elevation, or location details are provided.

Synonyms

Kieyo

Cones

Feature Name

Feature Type

Elevation

Latitude

Longitude

Chambagunguru

Cone

Chambasegera

Cone

Fiteko

Cone

Ibungu Hills

Cone

Inyenyese

Cone

Itete

Cone

Kioga

Cone

Kitema

Cone

Pandere Hill

Cone

Sarabwe

Cone

2175 m

Sengereti

Cone

Craters

Feature Name

Feature Type

Elevation

Latitude

Longitude

Chungururu

Maar

Ikapo

Maar

Iramba

Maar

Itamba

Maar

Itende

Maar

Iwale

Crater

Katubui

Crater

Kingiri

Maar

Kissoba

Crater

Massako

Maar

Ngaramo

Crater

Domes

Feature Name

Feature Type

Elevation

Latitude

Longitude

Mandanji

Dome

Basic Data

Volcano Number

Last Known Eruption

Elevation

Latitude
Longitude

222170

1800 CE

2,176 m / 7,139 ft

9.229°S
33.792°E

Morphology

Volcano Landform
Composite

Volcano Types
Stratovolcano
Pyroclastic cone(s)
Maar(s)

Rock Types

Major
Trachyte / Trachydacite
Trachyandesite / Basaltic Trachyandesite
Basalt / Picro-Basalt
Trachybasalt / Tephrite Basanite

Tectonic Setting

Rift zone
Continental crust (> 25 km)

Population

Within 5 km
Within 10 km
Within 30 km
Within 100 km

2,259
38,428
378,511
2,263,665

Geological Summary

Late-stage activity of the Kyejo (Kieyo) trachytic stratovolcano, NW of Lake Malawi (Lake Nyassa), consisted of the formation of numerous maars and cinder cones. This stratovolcano is elongated in a NW-SE direction and has been active since the mid-Pleistocene. Maars, some of which contain lakes, surround the area, and young basaltic cinder cones and lava flows cover an extensive area to the south. The latest eruption around 1800 CE took place from two tephritic cones, Sarabwe and Fiteko, that were constructed along a NW-trending fissure. The eruption produced lava flows that traveled 8 km and overran several villages.

References

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

Ebinger C J, Deino A L, Drake R E, Tesha A L, 1989. Chronology of volcanism and rift basin propagation: Rungwe volcanic province, East Africa. J. Geophys. Res, 94: 15,785-15,803.

Fontijn K, Ernst G G J, Elburg M A, Williamson D, Abdallah E, Kwelwa S, Mbede E, Jacobs P, 2010. Holocene explosive eruptions in the Rungwe Volcanic Province, Tanzania . J. Volcanol. Geotherm. Res., 196: 91-110. https://doi.org/10.1016/j.jvolgeores.2010.07.021

Harkin D A, 1960. The Rungwe volcanics at the northern end of Lake Nyasa. Geol Surv Tanganyika Mem, 2: 1-172.

Katsui Y (ed), 1971. List of the World Active Volcanoes. Volc Soc Japan draft ms, (limited circulation), 160 p.

Richard J J, Neumann van Padang M, 1957. Africa and the Red Sea. Catalog of Active Volcanoes of the World and Solfatara Fields, Rome: IAVCEI 4: 1-118.

Eruptive History

There is data available for 1 confirmed Holocene eruptive periods.

1800 (?) Confirmed Eruption VEI: 2

Episode 1 | Eruption

Sarabwe and Fiteko

1800 (?) - Unknown

Evidence from Observations: Reported

List of 6 Events for Episode 1 at Sarabwe and Fiteko

Start Date	End Date	Event Type
- - - -	- - - -	Explosion
- - - -	- - - -	Lava flow
- - - -	- - - -	Ash
- - - -	- - - -	Property Damage
1800 (?)	- - - -	Fatalities
1800 (?)	- - - -	VEI (Explosivity Index)

Deformation History

There is no Deformation History data available for Kyejo.

Emission History

There is no Emissions History data available for Kyejo.

Photo Gallery

The Kyejo volcanic complex (also spelled Kieyo) is seen from Katete, an eroded volcano located 10-15 km to the NNW. Late-stage activity consisted of the formation of numerous maars and cones. The latest eruption around 1800 CE took place from two cones that were constructed along a NW-trending fissure: Sarabwe and Fiteko. The eruption produced lava flows that overran several villages.

Photo by Karen Fontijn, 2008 (University of Ghent).

Sarabwe and Fiteko cones, visible halfway up the flank of the Kyejo volcanic complex, erupted about 1800 CE, in the latest eruption in this region. The eruption from these cones formed the Sarabwe lava flow (not clear in this picture). The cones are seen from the village of Masebe, 5 km NW from the summit.

Photo by Karen Fontijn, 2008 (University of Ghent).

GVP Map Holdings

Maps are not currently available due to technical issues.

Smithsonian Sample Collections Database

There are no samples for Kyejo 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.

MIROVA

Middle InfraRed Observation of Volcanic Activity (MIROVA) is a near real time volcanic hot-spot detection system based on the analysis of MODIS (Moderate Resolution Imaging Spectroradiometer) data. In particular, MIROVA uses the Middle InfraRed Radiation (MIR), measured over target volcanoes, in order to detect, locate and measure the heat radiation sourced from volcanic activity.

MODVOLC Thermal Alerts

Using infrared satellite Moderate Resolution Imaging Spectroradiometer (MODIS) data, scientists at the Hawai'i Institute of Geophysics and Planetology, University of Hawai'i, developed an automated system called MODVOLC to map thermal hot-spots in near real time. For each MODIS image, the algorithm automatically scans each 1 km pixel within it to check for high-temperature hot-spots. When one is found the date, time, location, and intensity are recorded. MODIS looks at every square km of the Earth every 48 hours, once during the day and once during the night, and the presence of two MODIS sensors in space allows at least four hot-spot observations every two days. Each day updated global maps are compiled to display the locations of all hot spots detected in the previous 24 hours. There is a drop-down list with volcano names which allow users to 'zoom-in' and examine the distribution of hot-spots at a variety of spatial scales.

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.

Volcanic Hazard Maps

The IAVCEI Commission on Volcanic Hazards and Risk has a Volcanic Hazard Maps database designed to serve as a resource for hazard mappers (or other interested parties) to explore how common issues in hazard map development have been addressed at different volcanoes, in different countries, for different hazards, and for different intended audiences. In addition to the comprehensive, searchable Volcanic Hazard Maps Database, this website contains information about diversity of volcanic hazard maps, illustrated using examples from the database. This site is for educational purposes related to volcanic hazard maps. Hazard maps found on this website should not be used for emergency purposes. For the most recent, official hazard map for a particular volcano, please seek out the proper institutional authorities on the matter.

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 Kyejo. 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 Kyejo. Users can customize the data search based on station or network names, location, and time window. Requires Adobe Flash Player.

DECADE Data

The DECADE portal, still in the developmental stage, serves as an example of the proposed interoperability between The Smithsonian Institution's Global Volcanism Program, the Mapping Gas Emissions (MaGa) Database, and the EarthChem Geochemical Portal. The Deep Earth Carbon Degassing (DECADE) initiative seeks to use new and established technologies to determine accurate global fluxes of volcanic CO₂ to the atmosphere, but installing CO₂ monitoring networks on 20 of the world's 150 most actively degassing volcanoes. The group uses related laboratory-based studies (direct gas sampling and analysis, melt inclusions) to provide new data for direct degassing of deep earth carbon to the atmosphere.

Large Eruptions of Kyejo

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).