Canadian Seismograph Network Update Jim Lyons National Earthquake

Canadian Seismograph Network Update Jim Lyons National Earthquake Hazards Program Geological Survey of Canada

Overview • Canadian National Seismograph Network (CNSN): Changes from 2000 - 2002 • CHASME deployment • POLARIS (code =‘PO’) network National Earthquake Hazards Program Natural Resources Canada

Glossary of Terms ESP 3 -c (Z|N|E), 100 sps, S-13 seismo EHZ 1 -c (Z), 100 sps, S-13 seismo SPZ 1 -c (Z), 60 sps, S-13 seismo BB 3 -c, 40 sps, Guralp seismo HBB 3 -c, 100 sps, Guralp seismo VBB 3 -c, 40/20 sps, STS-1 seismo National Earthquake Hazards Program Natural Resources Canada

CNSN Station Map 2002 National Earthquake Hazards Program Natural Resources Canada

Queen Charlotte Islands • RUB Prince Rupert, BC moved to RUBB, upgraded from dialup EHZ to BB National Earthquake Hazards Program Natural Resources Canada

Southwestern British Columbia • HNB Haney, LZB Mt. Lazard, PFB Port Renfrew, SHB Sechelt, SNB Saturna Island, have all been upgraded from EHZ to BB • New BB station installed at HOPB Hope National Earthquake Hazards Program Natural Resources Canada

Yellowknife Array • new BB station “YKW 5” co-located with VBB YKW 1 in November 2001 • Re-survey for IMS certification showed many YKA sites had wrong * coordinates; most off by < 50 m, YKW 1 1. 75 km, YKW 2 1. 0 km • NEIC, IDC, IRIS DMC informed National Earthquake Hazards Program Natural Resources Canada

Charlevoix A 11, A 16, A 21, A 54, A 61, A 64 upgraded from ESP to HBB in Sept 2001 National Earthquake Hazards Program Natural Resources Canada

Other Changes • GGN St. George, NB (former ECTN SPZ) re-installed as a CNSN BB • VLDQ Val d’Or, PQ (40 km east of original ECTN VDQ) installed as a CNSN BB • MNT Montreal, PQ, upgraded from EHZ to BB • FNBC Fort Nelson, BC has moved approximately 25 km west; renamed to FNBB • FSJ Fort St. James, BC was moved 3. 5 km WNW and is now FSB • GTO Geraldton, ON upgraded from regional analogue to EHZ National Earthquake Hazards Program Natural Resources Canada

CNSN Summary Total CNSN and regional 2000 – 121 May 2002 – 124 +12 BB, -6 SP, -3 Analogue + 20 more temporary sites for CHASME and POLARIS experiments National Earthquake Hazards Program Natural Resources Canada

CHASME Canadian High Arctic Seismic Monitoring Experiment National Earthquake Hazards Program Natural Resources Canada

National Earthquake Hazards Program Natural Resources Canada

National Earthquake Hazards Program Natural Resources Canada

POLARIS Portable Observatories for Lithospheric Analysis and Research Investigating Seismicity • a Canadian geophysical research consortium focused on investigation of the structure and dynamics of the Earth's lithosphere and the prediction of earthquake ground motion National Earthquake Hazards Program Natural Resources Canada

POLARIS • Will comprise 90 HBB seismographs in 3 sub-arrays • Employ Nanometrics digitizers, VSAT telemetry, and acquisition systems for continuous real-time processing • Deployments to last 4 -5 years • Will eventually include MT systems National Earthquake Hazards Program Natural Resources Canada

POLARIS Network National Earthquake Hazards Program Natural Resources Canada

POLARIS – Ontario Network National Earthquake Hazards Program Natural Resources Canada

POLARIS – NWT Network National Earthquake Hazards Program Natural Resources Canada

POLARIS – Western Network National Earthquake Hazards Program Natural Resources Canada

NEHP Role • Archive continuous real-time POLARIS waveform data • Make data available via Auto. DRM and realtime Internet feeds • By fall 2002, house and operate a second Nanometrics Inc. VSAT hub (earthstation downlink) National Earthquake Hazards Program Natural Resources Canada

The End National Earthquake Hazards Program Natural Resources Canada