Ventura - BCEEN

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BC Earthquake Early Warning System

Dr. Carlos E. Ventura, P.Eng. Department of Civil Engineering The University of British Columbia [email protected]

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Must have a network system Achieve economy as subset of the Strong Motion Network (SMN) UBC/MoTI have developed a new instrument (TETRA) ◦ ◦ ◦ ◦ ◦

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Small Low power usage Must detect and measure P-wave & SM parameters for SMN Accurate and reliable Inexpensive (capital and maintenance)

UBC developing initial system software ◦ Should be adaptable to existing EEW notification technology

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“Low risk” recipients ◦ Schools (public and private currently collaborating) ◦ Others would include fire and ambulance stations, etc.

BC EEW Network

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BC EEW Network NODE SITE

PA System

Main Server at Emergency Operations Response Center

PA System

Internet

Web Relay

Web Relay

Site Server

Power Over Ethernet Switch

Site Server

Site 1

… .

Site N

Tetra sensor detects the onset of the P-Wave arrival of an earthquake

Network Cable

Tetra Sensors are placed at two downhole locations at the node site Sensor 1

ALARMED SITE

Onset of the P-Wave

Sensor 2

Onset of the S-Wave

Earthquake

68 school sites: 30 Node Sites, 38 Alarmed-only Sites + 12 new sites being added this year Filename, 4

TETRA (POE accelerometer) A sensor for Seismic Early Warning & Strong Ground motion State-of-the-art technology specifically developed for BC Internet-based system & POE High sensitivity, self-orienting, programmable Can be used above and below ground, and underwater Can measure ground shaking, magnetism & temperature

RCAV Earthquake Early Warning System Project

Training component

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2.3 Response

Thank you

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