1. An overview of Uganda Seismological Network and current activities
Joseph Nyago
Seismological Network
Department of Geological Survey and Mines,
P.O Box 9, Entebbe - Uganda
IRIS Workshop on Managing Waveform Data and Related Metadata for Seismic Networks’, November 8-16, 2009 in Helwan - Cairo, Egypt

2. Outline Introduction History of destructive earthquakes in Uganda
Earthquake epicenters
Station coverage
Seismic instrumentation
Data collection, analysis and interpretation
Way forward
Acknowledgements
IRIS Workshop, Cairo-Egypt
Wednesday, April 26, 2017

3. Introduction
Seismological monitoring activities in Uganda as early as 1925 with a Milne- Shaw seismograph station at Entebbe. It was later re-established in 1989 under Uganda National Seismological Network.
UNESCO donated 3 micro-earthquake (MEQ-800) analogue seismograph and short period seismometers.
In 1999, the US Government through University of California San Diego (IRIS- IDA Project) installed a Global Seismographic station (MBAR) at Kyahi-Mbarara.
In 1999, International Programs in Physical Sciences (IPPS), Sweden donated 3 Orion Nanometrics seismographs and broadband seismometers.
IRIS Workshop, Cairo-Egypt
Wednesday, April 26, 2017

4. History of destructive earthquakes in Uganda
9th July 1912: Kitgum earthquake, magnitude 6.7;
2nd October 1929: Toro earthquake in western rift, magnitude 5.9;
18th March 1945: Sembabule earthquake, magnitude 6.0;
20th March 1966: Toro earthquake, magnitude 6.6;
7th September 1990: Lake Victoria earthquake, magnitude 5.0;
9th October 1991: Butiaba Port earthquake, magnitude 5.3;
5th February 1994: Kisomoro earthquake, magnitude (8 people lost lives, caused destruction of property in 3 western districts worth 61 million US dollars).
IRIS Workshop, Cairo-Egypt
Wednesday, April 26, 2017

5. Earthquake epicenters 1900-2007
IRIS Workshop, Cairo-Egypt
VSAT antenna at site NDC-N180
Wednesday, April 26, 2017

6. Seismic Network VSAT antenna at site NDC-N180
IRIS Workshop, Cairo-Egypt
VSAT antenna at site NDC-N180
Wednesday, April 26, 2017

7. Seismic Instrumentation
Station (name/code)
Equipment installed
Data collection/availability
Mbarara, MBAR
CTBTO-IMS (AS103)
3-Component BB sensor,
3-Strong Motion sensor,
Accelerometers
VSAT terminal ,
USB Memory, AutoDRM.
Entebbe, ENTT
Short Period (vertical) sensors, MEQ-800 Sprengnether seismograph.
3 Component BB (CMG-40T) sensor, Orion digital Nanometrics (portable) seismographs
Paper seismogram and phase reading and picking.
Data disc (2GB) and manual download to PC
Hoima, HOI
Kilembe, KIL
Data disc (2GB) and manual download to PC.
IRIS Workshop, Cairo-Egypt
Wednesday, April 26, 2017

8. Seismic Instrumentation
IRIS Workshop, Cairo-Egypt
VSAT antenna at site NDC-N180
Wednesday, April 26, 2017

9. Seismic Instrumentation
IRIS Workshop, Cairo-Egypt
Wednesday, April 26, 2017

10. Data collection, analysis and interpretation
Seisan earthquake analysis software ( both linux and windows versions) is used to analyze waveform data from the IRIS station (MBAR) and waveform data from 3-component broadband (nanometrics) stations (ENT, HOI, KIL).
IRIS Workshop, Cairo-Egypt
Wednesday, April 26, 2017

11. Way forward ??
Upgrading the existing stations with improved event detection capability and modern instrumentation to ensure;
Real-time waveform data transmission and availability
Automatic waveform processing
Automatic event location
Expanding on the existing network by increasing on the number of stations to ten (10) to ensure accurate event location.
IRIS Workshop, Cairo-Egypt
Wednesday, April 26, 2017

12. Incorporated Research Institutions in Seismology (IRRS)
Acknowledgements
UNESCO
Incorporated Research Institutions in Seismology (IRRS)
University of California San Diego (UCSD)
International Programs in Physical Sciences (IPPS)
AfricaArray (AA)
IRIS Workshop, Cairo-Egypt
Wednesday, April 26, 2017

13. I Thank You All For Your Attention!
End
I Thank You All For Your Attention!
IRIS Workshop, Cairo-Egypt
Wednesday, April 26, 2017