1. ZAMBIAN SEISMIC NETWORK
Data Service workshop - Pretoria, South Africa, 2017
ZAMBIAN SEISMIC NETWORK
PRESENTATION BY
A. MULOWEZI & E. KUNKUTA

2. ZAMBIAN SEISMIC NETWORK COUNTRY REPORT
INTRODUCTION
BACKGROUND
UPGRADING OF STATIONS
SUMMARY OF MAJOR EARTHQUAKES
SEISMOLOGICAL SET UP OF ZAMBIA
COOPERATION
CHALLENGES

3. INTRODUCTION
This presentation briefly describes the Zambian Seismic Network (ZSN), seismicity in Zambia and upgrading of seismic stations.
Zambia has been involved in the monitoring of seismological activities since the 1950s when it started operation of the Zambian Seismic Network (ZSN) which had its node at Broken Hill (Kabwe).
This network has undergone three major phases in its digitization processes from the single analog component stations to the current three components

4. 2. BACKGROUND ZAMBIAN SEISMIC NETWORK
Setting up of the network composed of:
Lusaka (Kapopo) main station (LSZ); 6C, 3SP-ZNS and 3LP-ZNS
Lennartz Electronics Ink-Drum (LE-ID) Recording
S-13 Teledyne Geotech (TG) SP seismometers
L-210/211 TG LP seismometers
Isoka (IKZ); 1C-SPZ, LE-ID recording, S-13 TG-SPZ seismometer.
Mansa (MZZ); 1C-SPZ, LE-ID recording, S-13 TG-SPZ seismometer.
Kasempa (KMZ); 1C-SPZ, LE-ID recording, S-13 TG-SPZ seismometer.
Petauke (PTZ); 1C-SPZ, LE-ID recording, S-13 TG-SPZ seismometer.
Choma (CHMZ); 1C-SPZ, LE-ID recording, S-13 TG-SPZ seismometer.
Network set between 1983 and 1985
Stations installed at Meteorological stations
Network set up in collaboration with Institute of Seismology, University of Helsinki, Finland with FINNIDA funding.

5. ZAMBIAN SEISMIC NETWORK LUSAKA SEISMIC STATION, KAPOPO VILLAGE SEISMOMETER AND DATA ACQUISITION HOUSE WITH SOLAR POWER

6. ZAMBIAN SEISMIC NETWORK LUSAKA SEISMIC STATION, KAPOPO VILLAGE INSIDE SEISMOMETER/DA HOUSE

7. ZAMBIAN SEISMIC NETWORK KASEMPA REMOTE SEISMIC STATION SEISMOMETER AND DATA ACQUISITION HOUSE WITH SOLAR POWER AND AC

8. 3. UPGRADING OF LUSAKA SEISMIC STATION
Funded by FINNIDA and carried out in collaboration with the Finnish Institute of Seismology, University of Helsinki.
Involved the installation of a radio telemetry link between Lusaka station and the Analysis Centre for seismic data transmission.
Carried out in 1994.
In 1994 the Lusaka seismic station was upgraded to a VBB digital IRIS seismic station.
Telemetry link improved to handle large quantities of digital data by installation of Cylink 128 Radio Modems.

9. UPGRADE-2: Remote Stations
All the remote stations were upgraded from 1C(Z) analogue stations to 3C(ZNE) digital stations. This project was funded by JICA in 1988/1999.
Replaced the 1C(Z) Teledyne Geotech seismometers with 3C(ZNE) Lennartz Electronics seismometers.

10. UPGRADE-3: AFRICAARAY STATIONS
The upgrade involves the setting up of new four seismic stations by AfricaArray (MONG, TEZI, KTWE & KSMZ)

11. ZAMBIAN SEISMIC NETWORK LUSAKA SEISMIC STATION, KAPOPO VILLAGE UPGRADES OF AS-119 TO IMS STANDARDS
These upgrades pertain to the upgrading of the Lusaka main seismic station (AS-119) and the National Data Centre (N-192) to IMS standards for the purposes of participating in the global monitoring of the CTBT. Zambia signed the Treaty in and has also ratified. These are indications of government’s commitment and support for the CTBT.

12. ZAMBIAN SEISMIC NETWORK NATIONAL DATA CENTRE, GSD, LUSAKA UPGRADES OF N-192 TO IMS STANDARDS LABORATORIES BUILDING, ROOFTOP N-192 VSAT

13. 4. SUMMARY OF MAJOR EARTHQUAKES
DATE
TIME
LAT
LONG
MAGNITUDE
REGION
13/12/1910
11:34 8 31
7.1
South Of Tanganyika
13/12/1942
13:40
11.4
34.5
6.7
Western
25/09/1963
07:03
16.73
28.4
6.4
Lake kariba
18/07/1986
15:07
16.36
28.48
5.4
10/05/1991
01:12
17.35
24.98
4.8
sw of Mulobezi
13/02/2010
16:00
13.4
30.84
5.3
Serenje
18/01/2011
16:31
8.6
31.74
5.7
Mbala
21/07/2011
15:55
15.96
25.98
5.2
Itezhi-tezhi
02/10/2013
14:23
31.8
4.5
West of Chipata
3/11/2014
18:25
10.97
29.69
Lubwe, Luapula
19/08/2015
00:15
9.66
28.61
5.1
Luapula Province
09/01/2016
03:05
16.046
28.55
4.6
Lusaka & southern
Provinces

14. 5. SEISMOLOGICAL SET UP OF ZAMBIA
The seismotectonic set up of Zambia is composed of a general earthquake faulting pattern related to the East African Rift System and extends on the component called the southern-western branch

15. The structural patterns of the East Africa Rift system can be shown as seen in the figure below:.

16. EARTHQUAKE, 46KM EAST OF KAPUTA

17. SUSPECTED CAUSE OF EARTHQUAKE:
REGIONAL RIFTING IN THE SOUTH TANGANYIKA RIFT AREA

18. 6. COOPERATION collaboration with USGS and CTBTO –LSZ
AfricaArray – KTWE, MONG, TEZI & KSMZ
Disaster Management & Mitigation Unit (DMMU)

19. THANK YOU FOR YOUR ATTENTION