Seismic Monitoring of the Northeastern Caribbean Region
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Seismic Monitoring of the Northeastern Caribbean Region
Christa G. von Hillebrandt-Andrade, Víctor Huérfano and Juan LugoPuerto Rico Seismic Network, Dept. Geology, UPR-Mayagüez
José Martínez Cruzado, John Clinton and Georgia CuaPuerto Rico Strong Motion Program, Dept. of Civil and Surveying Engineering,
UPR-Mayagü[email protected]
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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
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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.
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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
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Puerto Rico Seismic Network2005
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Seismic Stations
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After the Tropical Storm Jeanne
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W-lpRing
Wave Ring
PRSN-SP
PRSN-BB
II/IU/R
inputRing
Alarm Ring
DANIS
5
6
1
2
4
14
PickRing
Hypo Ring
RMTPRSM-SM
3
9
8
1613
12
17
15
7
18
11
10
PRSN EarthWormData Flow
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Local and Virtual Seismic Stations Monitored by PRSN
IRIS/USGS IU Network
IRIS/IDA II Network
ISU/USAD Network
PRSN/UPR Network
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Local and Virtual Seismic Stations Monitored by PRSN with USGS Stations
IRIS/USGS IU Network
IRIS/IDA II Network
ISU/USAD Network
PRSN/UPR Network
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Puerto Rico Seismic NetworkIRIS
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Located vs Felt Earthquakes in the Located vs Felt Earthquakes in the Northeastern CaribbeanNortheastern Caribbean
2004-20052004-2005
http://redsismica.uprm.edu
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Tsunamis Scenarios for Puerto Rico
RegionalTsunami
≤ 2HLOCAL
Tsunami
DISTANT TSUNAMI> 2H
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Protocolo de Tsunamis paraPuerto Rico e Islas Vírgenes
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Proposed Tide Gauge Network
New NOS PRSN Upgrade NOS New NOS/BVI
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Approximate Locations DART Buoys as of July, 2005
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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
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Opportunities forResearch and Operations
• Caribbean Velocity model
• RMT• SKS Splitting• Regional Tomography• Seismic Hazard• Attenuation
• Quick EQ location• Magnitude
computation• Distribution• Alarms• Real time sharing