Staff and Students

UNIVERSITY OF PUERTO RICO MAYAGUEZ CAMPUS

GEOLOGY DEPARTMENT

Mayaguez, Puerto RicoJune 26, 2014

PRSN MISSION

The mission of the Puerto Rico Seismic Network (PRSN) is to monitor and rapidly determine the location and size of all earthquakes and support NTWC to determine the Tsunami alert level in the Area of Responsibility (AOR) and to immediately disseminate this information to concerned agencies, scientists, and the general public. The PRSN compiles and maintains an extensive seismic database of earthquake parameters, continuous waveforms (earthquakes, GPS and sea level) and their effects which serve as a solid foundation for basic and applied earth science/oceanography research in Puerto Rico and the Caribbean.

PRSN HISTORY

1903 - First seismic station in Vieques, Fuerte el Conde1972 - First short period instrument installed in the UPRM1974 - The USGS installed a short period network for the PR EPA (Electrical Power Authority)1982 - The EPA transfer the network to the Centro para la Investigación de Energía y Ambiente1987 - The network is transferred to the UPRM – Geology1991 - The IASPEI and Soufrier digital systems replace the Lamont-Doherty Intel1997 - Network data acquisition system was moved from Cayey to Mayaguez,1999 - First broadband instruments were installed in PR, 2003 - BroadBand data included into the daily process,2006 - Tsunami ready tide gauges installed in PR,2007 - 24/7 hours operation,2008 - GPS network installed2015 - Infrastructure upgrade

MONITORING, DETECTION, ANALYSIS, DISEMINATION AND ARCHIVE

INSTRUMENTATION

EDUCATION AND OUTREACH

IT

RESEARCH

ADMINISTRATION

-The Caribbean plate is bounded by the North America plate to the north, and the South America plate to the south. To the west, the Cocos plate subducts beneath the Caribbean.Linear velocities can be predicted using:-CA-NA Euler vector: 75.2°N -177.4°E, 0.250 °/Myr-CA-SA Euler vector: 57.6°N -69.3°E, 0.233 °/Myr López et. al. (2006)

Caribbean plate tectonics:

1564

1787

16701943

2007

1974

1843

19461770 1918

1867

1969

2010

1751

REGIONAL TECTONIC SETTING

1690

M > 7

Year Casualties Earthquake Tsunami1842: 300 ??1867: 17 ??1918: 40 100+1946: 1790 1000+2010 : 250000 4

1842

PUERTO RICO AND VIRGIN ISLANDS

THE HISPANIOLA

ARUBA

PR Network

PR Partnership

Tide Gauges

GPS

Ground Motion

Tide Gauges

GPS

Ground Motion

IU: IRIS/USGSII : IRIS/IDACU: USGS CaribbeanPR: PRSN/PRSM, Puerto RicoUA: Aruba Meteorological AgencyG : GeoscopeWI: Frech West IndiesGE: GeofoneGT: Global Telemetered Seismic NetworkMV: Montserrat Volcano ObservatoryNA: KMNI AntillesDR: ISU Dominican Republic, UT BaylorUC: Colima University, MexicoUS: United States Seismic NetworkSV: SNET, El Salvador

NU: INETER, NicaraguaOV: OVSICORI, Costa RicaPA: Volcan Baru Network, PanamaTR: West Indies Seismic Research CenterCM: Colombian National Seismological NetworkCN: Canadian Seismic Network (Haiti)BL : Brazil Seismic NetworkMG: National Seismological Service of MexicoCY: Cayman IslandVE: FUNVISIS, VenezuelaJM: JamaicaAY: Haiti Seismic NetworkGI: INSIVUMEH, GuatemalaCW: National Seismological Service of Cuba-----------------------------------INTERNET

CARIBE EWS VIRTUAL SEISMIC NETWORK

CARIBE EWS VIRTUAL SEA LEVEL NETWORKMS : Member StatesPRSN : Puerto Rico Seismic NetworkUHSLC : University of Hawaii/Seismic Level CenterNOAA/NOS : US National Oceanographic Service------------------------------------------------------GOESNOAAport

CARIBE EWS VIRTUAL GPS NETWORKMS : Member StatesPRSN : Puerto Rico Seismic NetworkUNAVCO/PBOUNAVCO/COCONet------------------------------------------------------Internet/Caster

CARIBE EWS COMMUNICATION NETWORKMS : Member States (Regional Networks)NOAA/NTWCNOAA/PTWCDMCIRIS/IDAUSGS/ASLUSGS/NEICUNAVCONOAA/WallopsISCPRSN------------------------------------------------------Internet & Dedicated LinesGOESNOAAnet/OpsNet

Progression of

Sea Level Stations

Earthquake detection Sea Level Change detection

RESEARCH AT PRSN

- Real Time network operations: - Velocity - Acceleration - displacement - Sea level - Emergency management- Seismology: local and teleseismic - Tsunami Modeling: tectonic and landslides- Early warning and loss estimations- Hazard maps: Tsunami and Earthquakes- Paleo studies