JAMAICA SEISMIC NETWORK

IRIS Data Management Workshop

Managing Data from Seismic NetworksBogota, Colombia

July 24, 2014 – July 31, 2014

Earthquake UnitUniversity of the West Indies, Mona Campus

Jamaica_________________________________________________________________________________________________________________

Paul Williams – Network Manager/EngineerPaul Coleman – Information Technologist

FACTS ABOUT JAMAICA• Location = 18 N, 76-78 W ~400Km E of Grand Cayman and

150km S of SE Cuba.• Area of 11424 km sq. with length of island east to west 243

km and width of maximum distance N- S 80 km• Mountainous with half of island above height of 305m and

the highest mountain of 2256m in the east.• Population of 2.8 million.• Experiences moderate to high seismicity with most activities

in the east of the Island.• A history of having damaging earthquakes

LOCATION OF JAMAICA

July, 2014 PW/EQU/UWI-Mona 4

The Earthquake Unit

MISSION STATEMENT

Through operating the Jamaica Seismograph Network and affiliating with other Caribbean and Regional Networks the Earthquake Unit seeks to understand earthquake processes in and around Jamaica and advise the society about earthquake hazard thereby encouraging community awareness and the application of mitigative strategies to development.

Work of the Earthquake Unit• The Unit operates the Jamaica Seismograph

Network, Jamaica Strong Motion Network and the GPS Monitoring Network.

• Archives and records all earthquake related data for Jamaica.

• Collaborates/conducts relative research on Jamaica seismicity and tectonics.

• Performs national and site specific seismic hazard assessment for national and private entities.

Earthquake Unit contd.

• Informs the public about felt earthquake and conduct awareness campaign. Provides bulletin to the Office of Disaster Preparedness and Emergency management (ODPEM) and the media after felt earthquake.

• Operates the National Data Centre (NDC) for Jamaica in keeping with the CTBTO

• Hosts tours by schools and other community groups at the Central Recording Station.

MAP OF CURRENT NETWORK

JAMAICA DIGITAL BROADBAND NETWORK

NET STATION SENSOR1 SENSOR2 DIGITIZER COMM.

JM STHB CMG-3ESPC CMG-5TC DM24S6EAM FREEWAVE SPREAD SPECTRUM 900mhZ

JM MBJB CMG-3ESPC CMG-5TC DM24S6EAM UBIQUITI FREEWAVE

JM YHJB CMG-40TD FREEWAVE

JM CMJB CMG-3ESPC CMG-5TC DM24S6EAM POLICE IP NETWORK PLUS FREEWAVE

INSTRUMENTATION AT THE JSN

INSTRUMENTATION AT THE JSN

ACCELEROGRAPH INSTALLATIONSTATION EQUIPMENT TYPE OF INSTALLATION

NORMAN MANLEY IINTERNATIONAL AIRPORT (NMIA)

REFTEK 130 FREE-FIELD AND STRUCTURE

TRANSJAMAICA KINEMETRIC ETNA & K2 FREE FIELD & STRUCTURE

KINGSTON CONTAINER TERMINAL (KCT)

GURALP 5T FREE-FIELD

OLD HARBOUR POWER PLANT (OLBR)

ETNA FREE-FIELD

MUNRO COLLEGE (MCJ) ETNA AT SEISMIC STATION

STONY HILL (STHB) GURALP 5T AT SEISMIC STATION

MONTEGO BAY (MBJB) GURALP 5T AT SEISMIC STATION

CASTLE MOUNTAIN (CMJ) GURALP 5T AT SEISMIC STATION

LONG MOUNTAIN (LMCC) GURALP 5T FREE-FIELD

HALF-WAY-TREE (SMADA) ETNA STRUCTURE

INTERNET

MYSQLEARTHWORM

SEISCOMP SEEDLINK SERVER

NDC-IN-A BOX SERVER

LOCAL STATIONS ANALOG & DIGITAL

BROADBAND seismic station

DIGITAL TELEMETRYSPREAD SPECTRUM

ANALOG TELEMETRYUHF&VHF

EARTHWORM SERVER

WAVE SERVER CONTINUOUS RECORDING

SEISLOG/SEISANPC-SDA/PC-SDPDATA ACQ AND

PROCESSING EXPORTING DATA TO

EW SERVER

EQU SWITCH

SEISMIC STATIONS FROM OTHER

NETWORKS. Cayman, USGS-GSN etc.

ADMINISTRATIVE WORK AND ANALYSIS

DATA ANALYSIS WORKSTATION

DATA ACQUISITION AND ANALYSIS

CTBTO ROUTER

CTBTO STATIONS

Seismometers in use at the JSN

Mark Product L-4CGuralp CMG 40T Guralp CMG-6TD

Guralp CMG 3ESPC

Accelerograph in use at the JSMN

• Guralp 5T REFTEK 130-SMA Kinemetrics K2

PLANS FOR THE NETWORK FOR THE NEXT 3 YEARS

• Upgrade all the short period stations to digital broadband using Guralp instruments (total 8).

• Expand the strong motion accelerograph network by adding 40 accelerographs.

• To improve and expand the data communication network.

• Aquire geophysical equipment for seismic surveys and microzonation studies

PAW-IRIS_July 2014

THE END