SEMINAR: MGG Student Seminar

[marienzo@rsmas.miami.edu]

***MGG STUDENT SEMINAR***

Third Floor CIMAS Conference Room
Tuesday, May 4

12 - 1 pm


Viability of an Earthquake Early Warning System for Regional Events that
could affect Puerto Rico

Emanuelle A. Feliciano


Abstract

As part of the emergent Puerto Rico and Virgin Island tsunami warning
system, the Puerto Rico Seismic Network (PRSN) is responsible to provide
rapid location, and size estimation for seismic events felt in Puerto Rico
and Western Dominican Republic or any event with potential to generate
tsunami that could affect Puerto Rico or the Virgin Islands. This research
is a pilot study that seeks a comprehensive Earthquake Early Warning
System for Puerto Rico (EEWS) and the Caribbean. An EEWS consists of:
rapid earthquake location, ShakeMap product, estimation of building damage
and life loss, and a tsunami wave arrival time prediction tool. This
research focuses on the ShakeMap tool, which is a graphical representation
of ground shaking produced by an earthquake. There are three types of
ShakeMaps: empirical, instrumental and community internet intensity map
(CIIM). Three seismic events occurring in Martinique, Virgin Islands, and
Costa Rica are simulated to test this method for Puerto Rico and adjacent
areas. As input, a topography-slope based Vs30 grid is used instead of a
geology based Vs30 grid. This method could be used to advice communities
and local government the imminent arrival of dangerous ground shakings and
to help saving lives and property. Various parameters were tested in order
to achieve the goal of generating regional ShakeMaps in approximately 5
minutes. There were no significant differences between instrumental
ShakeMaps and those obtained from online felt intensity reports,
therefore, PRSN is now able to generate these regional ShakeMaps in
approximately 5 minutes.


____________________________________________________________________________

Orash Sharifi
Title: TBA












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