1. NETWORK REPORT SRI LANKA Geological Survey & Mines Bureau Sri Lanka

2. MAJOR PLATE BOUNDARIES

3. Precambrian Basement Low seismicity No active faults

6. Earthquake & Tsunami threat Plate boundaries in the East and West of Sri Lanka Increased seismicity in the South, near equator Micro-Seismic activity within the country

9. EARTHQUAKES NEAR THE ISLAND

11. PALK IRIS/IDA station

13. Sensors Teledyne Geotech KS-54000 Three component broadband system Long period – very long period channels 20 sps, 1sps and 0.1 sps Grulap CMG-3T Three component short period 40 sps Kinemetrics FBA-23 Three component force balance accelerometer 1 sps continuous mode and 100 sps Data Acquisition System - IDA MK7

15. KS – 54000 Broadband Seismometer The KS-54000 is emplaced in a cased borehole drilled into rock of migmitic rock at a depth of 100 meters. The CMG-3T is set in a shallow borehole approximately 0.5 meter from the KS-54000 borehole. Configuration – Three Component Sensitivity - 15000 V/(m Sec -2 )

16. University Seismic Network

17. Proposed GEOFON Broadband Stations Two broadband stations link to the Indonesian Tsunami Early Warning System Site survey completed MoU in progress (GFZ & GSMB) Establish end of 2007

18. Proposed GEOFON Stations

19. Future Plans Establish two new GEOFON stations Fix the University Network problems Establish National Data Centre

20. PALK IRIS/IDA Station University Seismic Network Proposed GEOFON Stations Kandy Colombo National Data Centre

21. Thank You