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Rwanda National Seismograph Network

Map of Stations | Seismograph Station Summary


Map of Stations

The station in Rwanda has been designated as an AfricaArray station and will be upgraded with a 24 bit datalogger/digitizer and a broadband sensor in 2006-2007.

Stations in Rwanda

A map of Rwanda indicating the position of the seismological station in Kigali(red triangle) in relation to a few cities/towns (black circles).

Seismograph Station Summary

The location and code of the station in Kigali, the first seismological station of the Geological Survey of Rwanda (GSR).

Station Name
ID
Latitude Longitude Altitude Component
Kigali KGLI -01.9422 30.0438 1543 Z

A Helicorder Model RV-301B recording instrument together with a Marks Products L-4C vertical, short period, single component seismometer (shown below) have been installed in Kigali. A helicorder is an old but reliable instrument, which produces an accurate twenty-four hour, continuous paper record.

The Helicorder uses a heating stylus on heat-sensitive paper, which eliminates the maintenance, associated with an ink writing stylus. Curvilinear pen provides typical, 100 mm of deflection with a sensitivity of 1 mV/mm (with the AR-320B Amplifier). In order to allow the operator to synchronize the timing unit of the Helicorder according to GMT, a Garmin XL-45 12 channel GPS receiver was installed. The system is fully operational from a 12-Volt backup battery, connected to a regulator and battery charger, to keep the system operational during the many power failures.

Helicorder RV 301B installation

L4C seismometer on vault floor