Phase Data
22 JAN 2013 ( 22)
ot = 21:29:33.90 +/- 1.58 COSTA RICA
lat = 9.488 +/- 8.5
lon = -84.034 +/- 10.8 MAGNITUDE 4.2 (GS)
dep = 10.0 +/- 3.2
49 km (31 miles) S of SAN JOSE, Costa Rica (pop 336,000)
102 km (64 miles) ESE of Puntarenas, Costa Rica (pop 36,000)
123 km (77 miles) WSW of Limon, Costa Rica (pop 61,000)
134 km (83 miles) NW of Golfito, Costa Rica (pop 10,000)
nph = 11 of 11 se = 0.78 FE=078 A
error ellipse = (242.0, 0.0, 18.0;152.0, 2.0, 11.6;340.0, 87.0, 4.9)
mb = 4.1 ( 3) ML = 0.0 ( 0) mblg = 0.0 ( 0) md = 0.0 ( 0) MS = 0.0 ( 0)
sta phase arrival res dist azm amp per mag amp per mag sta
HDC ePg 21:29:43.29 -0.7 0.5 352 HDC
JTS ePn 21:29:57.01 0.1 1.2 312 JTS
eSn 21:30:13.25 S res = -0.1
ESPN ePn 21:30:13.36 -4.1 2.7 355 ESPN
eSn 21:30:50.83 S res = 0.6
BOAB ePn 21:30:26.55 0.2 3.3 332 BOAB
BCIP ePn 21:30:37.65 0.2 4.2 94 BCIP
MTDJ ePn 21:32:08.41 0.5 10.7 35 MTDJ
060A ePn 21:33:41.80 0.0 17.8 11 b:2.6+2 1.1 5.3 060A
SJG eP 21:33:58.50 -1.3 19.3 62 b:1.7+1 1.0 4.3 SJG
X37A eP 21:35:15.06 -1.5 27.1 339 b:3.2+0 .85 4.0 X37A
Generated 2013 JAN 24 at 06:39 UTC
Preliminary Earthquake Report
U.S. Geological Survey, National Earthquake Information Center
World Data Center for Seismology, Denver
