1. JAMAICA SEISMOGRAPH NETWORK IRIS Metadata Workshop Managing Waveform Data and Related Metadata for Seismic Networks Foz do Iguacu, Brazil August 13 -19, 2010 Presenter: Paul Williams Earthquake Unit Jamaica

2. FACTS ABOUT JAMAICA Location = 18 N, 76-78 W ~400Km E of Grand Cayman and 150km S of SE Cuba. Spanish Colony: 1494 -1655 British Colony : 1655-1962 Got independence from Britain in 1962 Area = 11424 km sq. Length of island east to west 243 km Width of maximum distance N- S 80 km Mountainous with highest mountain of 2000m in the east. Population of 2.8 million. Experience moderate to high seismicity.

3. LOCATION OF JAMAICA

4. HISTORY OF EARTHQUAKES IN JAMAICA Eastern Jamaica 1692 (X) 1771 (VII) 1907 (IX) 1914 (VII) 1993 (VII) Western Jamaica 1839 (VII) 1943 (VII) 1957 (VIII)

5. MOST DAMAGING EARTHQUAKES IN JAMAICA DATEMAXIMUM INTENSITY PLACE AFFECTEDOBSERVED DAMAGE 1667VIIILandslide March 1,1668VIIPort RoyalHouses and Ships damage June 7, 1692XPort Royal, Kingston, Vere Plains, Also felt island-wide 2000 dead; buildings collapsed, liquefaction, subsidence, landslide and water ejected September 3, 1771VIIPort Royal, KingstonDamaged to structures, felt on boats in port. November 11, 1812 VIIIKingstonSeveral peopled killed; wall fell, buildings damaged April 10, 1824VIIKingston, Clarendon, St. Catherine Some houses fell, loud noise accompanied shock

6. DATEMAXIMUM INTENSITY PLACE AFFECTEDOBSERVED DAMAGE November 5, 1839VIIMontego Bay, St. James Government buildings declared unsafe due to damaged June 14, 1907IXKingston, Port Royal1000 dead, fire burnt city, most buildings collapsed, water main broke, landslides and slumps, localized tsnunami August 3, 1914VIIEastern JamaicaBuildings damaged July 15,1943VIISt. Elizabeth March 1, 1957VIIIMontego Bay, St. James and felt island- wide 4 dead, landslide and bridge damage, utility poles and lines damage January 13, 1993VIIKingston, felt island- wide 2 dead, few case of damage to buildings MOST DAMAGING EARTHQUAKES IN JAMAICA

7. PAW-IRIS_July 2010 1692 (June 7) Port Royal M? 1907 (Jan 14) Kingston Ms 6.5

10. MOST ACTIVE BLOCK MARCH 2009 – APRIL 2010 JSN Local sub-region blocks Blue Mountain being the most active block

11. History of Earthquake monitoring and the JSN in Jamaica The first modern seismograph in Jamaica was installed in the early 1960s at the Geological Survey Division. In 1963 the station was moved to the Mona campus of the University of the West Indies from where the growth of the Jamaica Seismograph Network began. In April 1990 digital recording and data processing were introduced at the Central Recording Station (CRS) using the Soufriere software of Beckles and Shepherd (1984). The system required two PC-Ats, 12-bit 16- channel digitizer and a GOES satellite clock.

12. In 1997 the Earthquake Unit started using a software called PC-Seismic Data Acquisition (PC-SDA)(developed by Avirac and Shapira) and PC-Seismic Data Processing (PC-SDP) (Malisky and Shapira). PC-SDA uses a 16 bit digitizer with Trimble GPS for timing. In 2006 the EQU started using seislog and seisan with a 16 bit SARA digitizer. We should start using Earthworm before the end of 2010. History of Earthquake monitoring and the JSN in Jamaica

13. June 20, 2010PW/EQU/UWI-Mona13 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.

14. STAFF AT THE EARTHQUAKE UNIT 6 full-time staff: Research Fellow/Geophysicists Network Engineer/Manager Seismic Analyst Information/Electronics Technologist Scientific Officer – Education & Information Administrative Secretary Plus One Postgraduate student and two part-time staff

15. 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. Conducts relative research on Jamaica seismicity and tectonics. Performs national and site specific seismic hazard assessment for national and private entities.

16. Earthquake Unit contd.  Informs the public about 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

17. JSN (Z)(8) JSN (3C)(4) JSMN (8) GPS (36) SEISMIC MONITORING IN JAMAICA 1997-2010 Morant/Middle Cay Pedro/NE Cay

18. JAMAICA SEISMOGRAPH NETWORK The Jamaica Seismic Network consists of 12 analog short period stations. There are four 3-component and 8 single vertical component station The JSN is a telemetry network using UHF and VHF radios. The station are mostly powered by solar power.

19. REPEATER REMOTE STATION UHF REMOTE STATION CENTRAL RECORDING STATION UHF LINK VHF JAMAICA TELEMETRY SEISMIC NETWORK RADIO LINKS RANGE FROM 15KM TO 60KM

20. June 20, 2010 PAW/EQU/UWI-Mona 20 THE JAMAICA SEISMOGRAPH NETWORK TELEMETRY LINK

21. Telemetry Link The stations are located across the island and data from these stations is transmitted to the CRS using UHF and VHF radios. The central recording station (CRS) is located at the University of the West Indies, Mona Campus in Kingston (HOJ on the Map). Short links are used for radio links because of: – the terrain the links are repeated several times before reaching the CRS. – Using smaller RF power to minimize the power requirement so that solar power can be used.

22. L4C SEISMOMETER Antenna UHF TRANSMITTER AMPLIFIER FILTER & VCO ANTENNA RECEIVER DISCRIMINATOR 16 BIT SARA DIGITIZER 16 BIT NATIONAL INSTRUMENTS & MULTIPLEXER SEISLOG & SEISAN WINDOWS PC(SDA) & PC(SDP) ANALOG DRUM RECORDER GPS Jamaica Telemetry Seismic Network

23. ID CodeStation NameLattitude Longitude Elevation Site Condition BBJBamboo, St. Ann18.3865N 77.2623W 766m, isolated pier on limestone bedrock BNJBonny Gate, St. Mary 18.3210N 76.9505W 485m, concrete slab on limestone bedrock CMJCastle Mountain, Portland 18.1351N 76.3613W 391m, concrete slab on limestone bedrock GWJGreenwich, St. Andrew 18.0740N 76.7280 W 1170m,concrete slab on weathered soil HOJHope (Mona), St. Andrew 18.0050N 76.7490W 228m, Quaternary alluvium of unknown depth Jamaica Seismograph Network Stations

24. MBJMontego Bay, St. James18.4050N 77.8630W 513m, Concrete slab on limestone bedrock MCJMunroe College, St. Elizabeth 17.9253N 77.8630W 661m, Isolated pier on limestone bedrock PCJPortland Cottage, Clarendon 17.9253N 77.1570W 198m, isolated pier on limestone bedrock RHJ (COJ) Red Hills, St. Andrew (Cooper’s Hill) 18.7410N 76.8540W 779m, no sensor STHStony Hill, St. Andrew18.0770N 76.8097N 504m, isolated pier on limestonebedrock CVJ Pike (Coleyville), Manchester 18.226N 77.535 969 m, concrete slab on limestone bedrock YHJYallahs Hill, St. Thomas17.8920N 76.4930W 600m, isolated pier on limestone bedrock

25. StationOwner of Site SensorSite Condition Stony Hill (STH) UWI3 component L4-C Etna accelerograph (Broadband Garulp CMG-3ESPD and SAM) Pier Greenwich (GWJ) Private Owner Single component L4-CVault to be constructed Yallahs (YHJ)GovernmentSingle componentPier Castle Mountain (CMJ) GovernmentMark Product L4-CPier to be constructed Bonny Gate (BNJ) GovermnentMark Product L4-C (Garulp 3ESPD and SAM) Vault Bamboo (BBJ)GovernmentMark Product L4-C single component Pier Current State of Network

26. Portland Cottage (PCJ) Port Authority3 component Mark product L4-C Pier Munro CollegeSchool3 component L4-C Guralp CMG ESPD and SAM Pier Negril (NEJ)PrivateSingle component L4-CVault or pier to be constructed Montego Bay (MBJ) Aeronautical Communication Leased from Government 3 component Mark product L4-C Etna accelerograph Garulp 3ESPD and SAM Vault Pike (CRJ)Civil AviationSingle component L4-CVault to be constructed Current State of Network

27. Seismometers in use at the JSN Mark Product L-4CGuralp CMG 40T Guralp CMG-6TD

28. Earthquake recorded near the center of the Island

29. REMOTE SEISMIC STATION AT NEGRIL (NEJ) and YALLAHS (YHJ)

30. Three Component Station at Munro College (MCJ) Earthquake Unit, UWI

31. Seismic Station at Greenwich (GWJ) Remote seismic stationStation powered by solar

32. CENTRAL RECORDING STATION

33. Equipment at Central Recording Station Solar panels at the CRS Charge Controller and Inverter at CRS

34. SOFTWARE USED FOR DATA ACQUISITION AND ANALYSIS For data acquisition Seislog PC-Seismic Data Acquisition (PC-SDA) For processing or data analysis Seisan PC-Seismic Data Processing (PC-SDP)

35. GPS MONITORING

36. June 15, 2004 The Earthquake Unit, UWI - Mona, Kingston 7, Jamaica 36 GPS Monuments across Jamaica

37. GPS MONITORING IN JAMAICA GPS Monitoring on Morant Cays offshore GPS installed in Geodetic Monument

38. GPS Monitoring Station Portable GPS Station Fixed GPS Station

39. USGS-GSN Station Mount Denham Jamaica (MTDJ) Equipment at stationConducting test at station

40. USGS-GSN MTDJ STATION

41. Comprehensive (Nuclear) Test Ban Treaty Organisation (CTBTO) Jamaica’s National Data Centre (NDC) Earthquake Unit, UWI

42. CTBTO National Data Center VSAT for Jamaica NDCNDC Equipment

43. Accelerograph Station ETNA installed on a pier in a free field installation K2 installed

44. SUMMARY The Jamaica Seismograph consist of 12 short period seismograph station – four 3- component station and eight single- component station. The Jamaica Strong Motion Network consist of 8 accelerograph (6 Etnas, 1 CMG 5TD and one K2). There are three other etnas owned by the other institutions that are operated by the Earthquake Unit. And 2 REFTEK accelerograph will be installed at the NMIA airport

45. SUMMARY CONTINUE GPS network has 36 monitoring points three of which have a fixed GPS installation To improve our network we hope to upgrade our network to digital. Install 6 broadband seismometers Have automatic solution of earthquakes. Have real time access to accelerograph to produce shake map.

46. PAW-IRIS_July 2010 THE END