USGS Professonal Paper 1096 - IRIS

PUERTO RICO--Continued
Cayey, PR
SITE INFORMATION--Continued
Code
Station
name
Lati tude Longitude Elev Date Date
(deg N. ) (deg w. ) (meters) opened closed
Foundation; geologi c
.ge
PNP Ponce (Penuelas)-------- 18.0583 66.6837 200 7/30!7S Open-- Plutonic/volcanic rocks; Late
Cretaceous.
PON Ponce------------------- 111. 0033 66.6138 50 8116/74 7/17/75 Alluvial deposits' Pleistocene to
Holocene.
SJG Cayey------------------- 18.1117 66.1500 457 9/23/64 Open-- Plutonic/volcanic rocks; Early
Cretaceous.
SJGC Cayey------------------- 18. 1117 66.1'i00 457 2/22/76 --do-- 00.
SJP San Juan---------------- 18 .3817 66. 1183 80 12/1925 12/1965
VQS Vieques----------------- 18. 1500 65 .4500 20 9/1903 12/1924
INSTRUMENTATION
Sei smometer Galvo Type Magnification
Code Type Component To(sec) T (sec) recording
g " T 0
Rema rks
CCA, CPD,
CSB, IDE,
IMO, LPR,
LRS, MGP,
MOV, PNP: Geotech 5-13--------- Z 1.0 Develocorder 550 K Magni fi cation 10 H,.
Telemetered " to the
Observatory.
APR, L5P,
MCP: Geotech S-13--------- Z 1.0 --do------·- 225 K Do.
CAG, DOS,
peN. Beotecli 3-13--------- Z 1.0 --do-------- 100 R Telemetered to the
Observatory .
CDp·
--90----------- -- Z ,NS,J:\/ 1.8 do 225 K, 112 .. 1 K lIagtrifi,atioli at 10 Hz,
horizontals cun
" half
magnification of vertical.
Telemetered to
Ohservatory.
EYP: --do----------------- 1.0 --do-------- 80 K Magnification
" 5 Hz.
Telemetered to Observ~tory.
Hm. do Z,N3,EW . 0 --do-------- 160 K, 35.2 R Magnlflcation
" 5 Hz;
horizontals eun
" half
magnification of vertical.
'feiemeteted to
Observatory.
5JG: Benioff-------------- Z,NS,EW 1.0 .75 Photo paper WWS5N.
5prengnether--------- Z,NS,EW 15.0 100.0 --do------- Do.
5JGC: Geotech 5-13--------- Z 1.0 Uevelocorder 550 K Magnification 10 Hz.
Telemetered " to the
Observatory.
278