1. Seismic Monitoring of the Northeastern Caribbean Region Christa G. von Hillebrandt-Andrade, Víctor Huérfano and Juan Lugo Puerto Rico Seismic Network, Dept. Geology, UPR-Mayagüez christa@midas.uprm.edu José Martínez Cruzado, John Clinton and Georgia Cua Puerto Rico Strong Motion Program, Dept. of Civil and Surveying Engineering, UPR-Mayagüez martinez@uprm.edu

2. The seismicity of the northeastern Caribbean region is monitored jointly by the Puerto Rico Seismic Network (PRSN) and the Puerto Rico Strong Motion Program (PRSMP) of the University of Puerto Rico at Mayagüez. From ten Brink, 2004

3. Objectives and Goals The objectives of the two networks are to record, process, analyze, and research local, regional and teleseismic earthquakes. The ultimate goals are to produce high quality data and information in order to be able to respond to the needs of emergency management and the industrial, academic and research communities, as well as the general public.

4. PRSN Operation of a real time network of almost 25 short period, broad band and joint strong motion stations. Monthly seismicity reports issued locally Felt earthquake memos Web site Education and Outreach program Puerto Rico and Virgin Islands Tsunami Warning System Host to MIDAS Seismological research

5. Puerto Rico Seismic Network 2005

6. Seismic Stations

7. After the Tropical Storm Jeanne

8. W-lp Ring Wave Ring PRSN-SP PRSN-BB II/IU/R input Ring Alarm Ring DANIS 5 6 1 2 4 14 Pick Ring Hypo Ring RMT PRSM-SM 3 9 8 16 13 12 17 15 7 18 11 10 PRSN EarthWormData Flow

9. Local and Virtual Seismic Stations Monitored by PRSN

10. Local and Virtual Seismic Stations Monitored by PRSN with USGS Stations

11. Puerto Rico Seismic Network IRIS

12. Located vs Felt Earthquakes in the Northeastern Caribbean 2004-2005 Located vs Felt Earthquakes in the Northeastern Caribbean 2004-2005 http://redsismica.uprm.edu

13. Tsunamis Scenarios for Puerto Rico

14. Protocolo de Tsunamis para Puerto Rico e Islas Vírgenes

15. Proposed Tide Gauge Network New NOS PRSN Upgrade NOS New NOS/BVI

16. Approximate Locations DART Buoys as of July, 2005

17. Host to MIDAS (MIDdle America Seismograph Consortium) Promote scientific interaction among participating institutions and to facilitate the rapid, efficient and widespread utilization of earthquake data in routine observations and in more advanced seismological research

18. Opportunities for Research and Operations Caribbean Velocity model RMT SKS Splitting Regional Tomography Seismic Hazard Attenuation Quick EQ location Magnitude computation Distribution Alarms Real time sharing